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2011 Engineering & Traffic SurveyENGINEERING AND TRAFFIC SURVEY March 2011 ENGINEERING AND TRAFFIC SURVEY VVWILLDA� FOR THE CITY OF Immo 1982 LA QUINTA Prepared by: WILLDAN IL Engineering W I LLDAN your ng Engineering reach March 8, 2011 Mr. Tim Jonasson Public Works Department City of La Quinta 78-495 Calle Tampico La Quinta, CA 92253 Subject: 2011 Engineering and Traffic Survey Dear Mr. Jonasson: As requested, Willdan Engineering has completed an Engineering and Traffic Survey to justify and update the posted speed limits along eight (8) street segments in the City of La Quinta. These segments were last surveyed in January 2007, and require an update due to recent changes in roadway configuration. We are pleased to submit the enclosed Report that describes the E&T survey procedures and contains recommendations for posted speed limits on the City's arterial and collector street system. A summary of these recommendations is included in the Analysis. Supporting documentation for each speed zone recommendation is provided in the Appendices. The Report was conducted in accordance with applicable provisions of the CVC, following procedures outlined in the California Manual on Uniform Traffic Control Devices (California MUTCD) dated January 2010 and as required by Section 627 of the California Vehicle Code. The Report is intended to satisfy the requirements of Section 40802 of the CVC to enable the continued use of radar for traffic speed enforcement. We appreciate the opportunity to serve the City of La Quinta and the assistance and cooperation afforded to us during the course of this study. Very truly yours, WILLDAN ENGINEERING Vanessa Mun z, P.E., T.E. Traffic Engineer Enclosure No. 2344 cv. (0.30. /.2 l�p8AfF\A`,' Engineering I Geotechnical I Environmental I Sustainability I Financial I Homeland Security 562.908.6200 1 562.695.2120 1 13191 Crossroads Parkway North, Suite 405, City of Industry, CA 91746-3443 1 www.willdan.com TABLE OF CONTENTS Page INTRODUCTION......................................................................................... 1-2 Elements of the Engineering and Traffic Survey ....................................... 2-3 SURVEY CONDITIONS.............................................................................. 4 SurveyLocations....................................................................................... 4 DataCollection.......................................................................................... 4 SpeedData............................................................................................ 4 CollisionData......................................................................................... 5 FieldReview Data.................................................................................. 5 ANALYSIS................................................................................................... 6 Criteria....................................................................................................... 6 Results and Recommendations................................................................. 6-7 Table 1-Segments With Higher Recommended Speed Limits .................. 7 Table 2-Summary of Recommendations ............................. 8 ...................... Segments with Special Conditions............................................................ 9 LEGISLATIVE REFERENCES.................................................................... 10 Applicable Sections of California Vehicle Code ......................................... 10-15 APPENDIX A - Segment Data Street Segment Sheets Radar Speed Distribution Forms APPENDIX B - Survey Equipment Used APPENDIX C — Speed Limit Map Engineering and Traffic Survey City of La Quinta INTRODUCTION This Engineering and Traffic Survey is intended to be the basis for the establishment, revision, and enforcement of speed limits for selected streets within the City of La Quinta. This Engineering and Traffic Survey presents recommended speed limits for 8 street segments in the City of La Quinta. Engineering and Traffic Surveys are required by the State of California to establish intermediate speed limits on local streets and to enforce those limits using radar or other speed measuring devices. These surveys must be updated every 5, 7, or 10 years to ensure the speeds reflect current conditions as dictated by the California Vehicle Code (CVC). The CVC also requires that the surveys be conducted based on the methodology required by the California Manual on Uniform Traffic Control Devices (California MUTCD) dated January 2010. The survey was requested by the City for the proper posting of speed limits and to enable the Police Department to utilize radar or other electronic speed measuring devices for speed enforcement. CVC Sections 40801 and 40802 require Engineering and Traffic Surveys that verify the prima facie speed limit before enforcement by such a device is legal. The law further specifies that these surveys be conducted every 5 years. The surveys can be extended to 7 years provided the City's police officer(s) have completed a 24-hour radar operator course [CVC 40802(c)(2)(B)(i)(1)]. Additionally, some surveys may be extended to 10 years if a traffic engineer certifies that no changes in roadway or traffic conditions have occurred [CVC 40802 (c)(2)(B)(i)(II)]. These provisions assure that posted speed limits are kept reasonably current. The Engineering and Traffic Surveys for the City were conducted in accordance with procedures outlined in the California Manual on Uniform Traffic Control Devices (California MUTCD) dated January 2010 and as required by Section 627 of the California Vehicle Code. The Code further describes three elements of an engineering and traffic survey: 1. Measurement of prevailing speed; 2. Accident history; and 3. Roadway characteristics not readily apparent to the motorist. Posted speed limits are established primarily to protect the general public from the reckless and unpredictable behavior of dangerous drivers. They provide law enforcement with a clearly understood method to identify and apprehend violators of the basic speed law (CVC Section 22350). This law states that "No person shall drive a vehicle on a highway at a speed greater than is reasonable or prudent having due regard for weather, visibility, the traffic on, and the surface and width of the highway, and in no event at a speed which endangers the safety of persons or property." The posted speed limit gives motorists a clear warning of the maximum speed that is reasonable and prudent under typical driving conditions. Engineering and Traffic Survey City of La Quinta The basic fundamentals for establishing speed limits recognize that the majority of drivers behave in a safe and reasonable manner, and therefore, the normally careful and competent actions of a reasonable driver should be considered legal. Speed limits established on these fundamentals conform to the consensus that those who drive the highway determine what speed is reasonable and safe, not on the judgment of one or a few individuals. A radar speed study is usually used to record the prevailing speed of reasonable drivers. Speed limits are also established to advise drivers of conditions which may not be readily apparent to a reasonable driver. For this reason, accident history, roadway conditions, traffic characteristics, and land use must also be analyzed before determining speed limits. Speed limit changes are usually made in coordination with physical changes in roadway conditions or roadside developments. Additionally, it is generally accepted that speed limits cannot be successfully enforced without voluntary compliance by a majority of drivers. Consequently, only the driver whose behavior is clearly out of line with the normal flow of traffic is usually targeted for enforcement. ELEMENTS OF THE ENGINEERING AND TRAFFIC SURVEY The California Manual on Uniform Traffic Control Devices (California MUTCD) dated January 2010 specifies the methodology to be used for completing Engineering and Traffic Surveys. This methodology includes an evaluation of current vehicle speeds, accident history and conditions not readily apparent to motorists. The basic elements of the Engineering and Traffic Survey are discussed in more detail as follows: Speed Sampling Existing vehicle speeds are surveyed by a certified radar operator with a calibrated radar unit in an unmarked vehicle. Speed samples are taken for each segment representing a statistically significant sample of current traffic. This data is then evaluated to identify the distribution of speeds. A key element in the evaluation is the identification of the 85th percentile speed. The 85th percentile speed is the speed at or below which 85 percent of the traffic travels. This threshold represents what is historically found to be a safe and reasonable speed for most drivers based on common roadway conditions. Therefore, a "basic speed limit" is established at the nearest 5-mile per hour (mph) increment to the 85th percentile speed. For example, if the 85th percentile speed is 48 mph, the basic speed limit is 50 mph. If the 85th percentile speed is 47 mph, the basic speed limit is 45 mph. Engineering and Traffic Survey 2 City of La Quinta Collision History Reported collisions are reviewed for each street segment to determine if there is a higher than average rate of collisions. A segment that has an above -average collision rate typically suggests conditions that are not readily apparent to motorists. The collision rate for each of the 8 surveyed street segments is provided in Table 2. Conditions Not Readily Apparent To Motorists Each street segment is field inspected to identify roadway conditions that may not be readily apparent to motorists. A determination is made whether any conditions are significant and warrant the recommendation of the speed limit 5 mph or more below the basic speed limit. It is important to note that the California Manual on Uniform Traffic Control Devices (California MUTCD) dated January 2010 recommends exercising great care when establishing speed limits 5 mph or more below the basic speed limit. Engineering and Traffic Survey 3 City of La Quinta SURVEY CONDITIONS SURVEY LOCATIONS The procedures described below describe the criteria and methods used to survey selected streets within the City of La Quinta. The specific location of the radar speed survey for each street segment was selected after considering the following: 1. Minimum stop sign and traffic signal influence. 2. Minimum visibility restrictions. 3. Non -congested traffic flow away from intersections and driveways. 4. Minimum influence from curves or other roadway conditions that would affect the normal operation of a vehicle. DATA COLLECTION Data of existing conditions was obtained including prevailing speed of vehicles, traffic collisions, visibility restrictions, and roadway conditions within the community. Speed data and field reviews were conducted at 8 locations during the months of January and February 2011. Speed Data Radar speed measurements were conducted at 8 locations during January 2011. All surveys were conducted in good weather conditions, during off-peak hours on weekdays. The radar unit was operated from an unmarked vehicle to minimize any influence on driver behavior. Typically, a minimum sample size of 100 vehicles or the total samples during a maximum period of 2 hours were obtained for each segment. Directional traffic speeds were recorded for individual segments and separate surveys were made for divided roadways. Engineering and Traffic Survey 4 City of La Quinta Collision Data Collision data was obtained from the City's Statewide Integrated Traffic Records System (SWITRS) electronic collision database. For this study, collision data was used from the latest (3 years of reported accidents from January 1, 2008 to December 31, 2010.) The collision rates for the 8 segments are expressed in accidents per million vehicle miles (A/MVM). To calculate these rates, 24-hour traffic volumes were collected for each street segment. This information was then entered into the following formula to determine the collision rate: R= Ax1,000,000 tx365 days xlxv year A = Number of midblock collisions over time period R = Collision Rate (accidents/million vehicle miles) t = Time Period Covered (in years) / = Length of Segment (miles) v = Traffic Volume (average daily traffic) The segment collision rate was then compared to the average statewide collision rate. The average statewide collision rates were obtained from 2007 Collision Data on California State Highways. Field Review Data A field review was conducted for each of the selected street segments in the City with consideration for the following factors: 1. Street width and alignment (design speed); 2. Pedestrian activity and traffic flow characteristics; 3. Number of lanes and other channelization and striping patterns; 4. Frequency of intersections, driveways, and on -street parking; 5. Location of stop signs and other regulatory traffic control devices; 6. Visibility obstructions; 7. Land use and proximity to schools; 8. Pedestrian and bicycle usage; 9. Uniformity with existing speed zones and those in adjacent jurisdictions; and 10. Any other unusual condition not readily apparent to the driver. Engineering and Traffic Survey 5 City of La Quinta ANALYSIS CRITERIA Survey data was compiled and analyzed to determine the recommended speed limit in accordance with several criteria contained in the California Manual on Uniform Traffic Control Devices (California MUTCD) dated January 2010. Some of the criteria used are: A. The critical speed or 85th percentile speed is that speed at or below which 85 percent of the traffic is moving. This speed is the baseline value in determining what the majority of drivers believe is safe and reasonable. Speed limits set higher than the critical speed are not considered reasonable and safe. Speed limits set lower than the critical speed make a large number of reasonable drivers "unlawful," and do not facilitate the orderly flow of traffic. The "basic speed limit" is the nearest 5 mph increment to the 85th percentile speed. B. The 10 mile per hour (mph) pace speed is the 10 mph increment that contains the highest percentage of vehicles. It is a measure of the dispersion of speeds across the range of the samples surveyed. An accepted practice is to keep the speed limit within the 10 mph pace while considering the critical speed and other factors that might require a speed lower than the critical speed. C. The collision rate for each street segment is compared to average collision rates that can be reasonably expected to occur on streets and highways in other jurisdictions, in proportion to the volume of traffic per lane mile. These average collision rates have been developed by the State of California and are considered reasonable for use in the City of La Quinta. RESULTS AND RECOMMENDATIONS The Engineering and Traffic Survey Forms, presented in Appendix A, illustrate results of a thorough evaluation of the available data and recommend a speed limit for each street segment surveyed. A complete summary of all recommendations is shown in Table 2. In each case, the recommended speed limit was consistent with the prevailing behavior as demonstrated by the radar speed measurements. Typically, a speed limit in the upper range of the 10-mile pace was selected unless a collision rate significantly higher than expected was discovered or roadway conditions not readily apparent to the driver were identified. Any segments with recommended speed limits 5 mph or more below the basic speed limit are fully explained later in this report. The Legislature, in adopting Section 22358.5 of the California Vehicle Code (CVC), has made it clear that physical conditions, such as width, curvature, grade and surface conditions, or any other condition readily apparent to a driver, in the absence of other factors, would not be the basis for special downward speed zoning. In these cases, the basic speed law (CVC Section 22350) is sufficient to regulate such conditions. Engineering and Traffic Survey 6 City of La Quinta The recommendations contained in this Report are intended to establish prima facie speed limits. They are not intended to be absolute for all prevailing conditions. All prima facie speed violations are actually violations of the basic speed law (Section 22350 of California Vehicle Code). This statute states that a person shall not drive a vehicle at a speed greater than is safe having regard for traffic, roadway, and weather conditions. A prima facie limit is intended to establish a maximum safe speed under normal conditions. Table 1 identifies the street segments with recommended posted speed limit changes and Table 2 summarizes the recommendations for all surveyed segments. TABLE 1 STREET SEGMENTS WITH RECOMMENDED SPEED CHANGES STREET FROM TO EXISTING NEW Avenida Bermudas Avenue 52 Calle Arroba 45 40 Avenida Bermudas Calle Arroba Calle Tecate 35 30 Westward Ho (Eastbound) Roadrunner Lane Jefferson Street Not Posted 35 Engineering and Traffic Survey 7 City of La Quinta 2 D N Q L L L L L LI) co LO co Lf) M LO m In m r t fA a) 6 a) N a) M 0) s a) E O O O O O U U U U U 0 It o Cl) O M o LO 0 LO 0 LO LO LO LO Cl) LO LO Ln v Ln M o Cl)Ln o Ln o C) LO CL Z LO LO M O W O O Ln co N LO O M O O co O O O O O O O O N LO M LO O LO O O_ O V 0 V' LO r LO O M M co N N N M M r LO N cq `I CD co M N 7 V) LO co (D m r- LLn LO n m -.. CO V h C? eY M N LO h V O V' to Ln O V r M 00 N LO N m 00 M M co V M H LO V n co N co Ln M w V CD LO M co Z W O O V n V Ln N O O O O O O CA N O O N O N 4) N Q) CD a) o to E c co U a)-0 U) J N w o M t m U O 0 Q m N m O C O V Q co a).Z. 7 O ca U �a U orn a) ¢c ai ° C � cc C) C)JOO CM LrO O C J 00 CD C ac) ¢ a) c U)c ca a) U)G U) a) CLa)) va U m U () N 7 E 7 E a) o 0 a) CD r r co co o L ca P o 3 3 r 0 v c 3 g Q Q a) U 'O LL -CLM = L S C UU)) N 3: W . cqj M Ir to CD CO c CU M C N E E O C 0 U N U) U) c O 'v C O U m �U N d L c N 0) d U) N a) U) SEGMENTS WITH SPECIAL CONDITIONS The following segments surveyed had recommended speed limits that were 5 miles per hour (mph) or more below the 85t" percentile speed due to conditions not readily apparent to the driver. Each segment is discussed below. Segment #1 — Avenida Bermudas — Avenue 52 to Calle Arroba This segment is currently posted at 45 mph and has 2 through lanes in each direction with an ADT of 6,790 vehicles per day. The adjacent land use is residential. The 85t" percentile speed is 45 mph and would normally justify a 45 mph posted speed limit. However, due to moderate pedestrian traffic and various hidden driveways that may not be apparent to unfamiliar drivers, a lower speed limit is prudent. It is recommended that the speed limit be posted at 40 mph for the above reasons. Segment #2 — Avenida Bermudas — Calle Arroba to Calle Tecate This segment is currently posted at 35 mph and has 1 through lane in each direction with an ADT of 1,367 vehicles per day. The adjacent land use is residential. The 85tn percentile speed is 37 mph and would normally justify a 35 mph posted speed limit. However, due to horizontal curves and various hidden driveways that may not be apparent to unfamiliar drivers, a lower speed limit is prudent. It is recommended that the speed limit be posted at 30 mph for the above reasons. Segment #8 — Westward Ho (Eastbound) — Roadrunner Lane to Jefferson Street This segment currently has no speed limit posted and has 1 through lane in each direction with an ADT of 1,512 vehicles per day. The adjacent land use is residential. The 85tn percentile speed is 38 mph and would normally justify a 40 mph posted speed limit. However, due to a higher than expected accident rate and various hidden driveways that may not be apparent to unfamiliar drivers and to maintain uniformity between adjacent street segments, a lower speed limit is prudent. It is recommended that the speed limit be posted at 35 mph for the above reasons. Engineering and Traffic Survey 9 City of La Quinta LEGISLATIVE REFERENCES APPLICABLE SECTIONS OF 2011 CALIFORNIA VEHICLE CODE SECTION 1. Section 627 of the Vehicle Code: Section 627. (a) "Engineering and traffic survey, "as used in this code, means a survey of highway and traffic conditions in accordance with methods determined by the Department of Transportation for use by state and local authorities. (b) An engineering and traffic survey shall include, among other requirements deemed necessary by the department, consideration of all of the following: (1) Prevailing speeds as determined by traffic engineering measurements. (2) Accident records. (3) Highway, traffic, and roadside conditions not readily apparent to the driver. (c) When conducting an engineering and traffic survey, local authorities, in addition to the factors set forth in paragraphs (1) to (3), inclusive, of subdivision (b) may consider all of the following: (1) Residential density, if any of the following conditions exist on the particular portion of highway and the property contiguous thereto, other than a business district: (A) Upon one side of the highway, within a distance of a quarter of a mile, the contiguous property fronting thereon is occupied by 13 or more separate dwelling houses of business structures. (B) Upon both sides of the highway, collectively, within a distance of a quarter of a mile, the contiguous property fronting thereon is occupied by 16 or more separate dwelling houses or business structures. (C) The portion of highway is longer than one -quarter of a mile but has the ratio of separate dwelling houses or business structures to the length of the highway described in either subparagraph (A) or (B). (2) Pedestrian and bicyclist safety. Basic Speed Law 22350. No person shall drive a vehicle upon a highway at a speed greater than is reasonable or prudent having due regard for weather, visibility, the traffic on, and the surface and width of, the highway, and in no event at a speed which endangers the safety of persons or property. Speed Law Violations Section 22351. (a) The speed of any vehicle upon a highway not in excess of the limits specified in Section 22352 or established as authorized in this code is lawful unless clearly proved to be in violation of the basic speed law. (b) The speed of any vehicle upon a highway in excess of the prima facie speed limits in Section 22352 or established as authorized in this code is prima facie unlawful unless the defendant Engineering and Traffic Survey 10 City of La Quinta establishes by competent evidence that the speed in excess of said limits did not constitute a violation of the basic speed law at the time, place and under the conditions then existing. Prima Facie Speed Limits Section 22352. (a) The prima facie limits are as follows and shall be applicable unless changed as authorized in this code and, if so changed, only when signs have been erected giving notice thereof: (1) Fifteen miles per hour: A) When traversing a railway grade crossing, if during the last 100 feet of the approach to the crossing the driver does not have a clear and unobstructed view of the crossing and of any traffic on the railway for a distance of 400 feet in both directions along such railway. This subdivision does not apply in the case of any railway grade crossing where a human flagman is on duty or a clearly visible electrical or mechanical railway crossing signal device is installed but does not then indicate the immediate approach of a railway train or car. B) When traversing any intersection of highways, if during the last 100 feet of the driver's approach to the intersection, the driver does not have a clear and unobstructed view of the intersection and of any traffic upon all of the highways entering the intersection for a distance of 100 feet along all those highways, except at an intersection protected by stop signs or yield right-of-way signs or controlled by official traffic control signals. C) On any alley. (2) Twenty-five miles per hour: A) On any highway other than a state highway, in any business or residence district unless a different speed is determined by local authority under procedures set forth in this code. (B) When approaching or passing a school building or the grounds thereof, contiguous to a highway and posted with a standard "SCHOOL" warning sign, while children are going to or leaving the school either during school hours or during the noon recess period. The prima facie limit shall also apply when approaching or passing any school grounds which are not separated from the highway by a fence, gate or other physical barrier while the grounds are in use by children and the highway is posted with a standard "SCHOOL" warning sign. For purposes of this subparagraph, standard "SCHOOL" warning signs may be placed at any distance up to 500 feet away from school grounds. (C) When passing a senior center or other facility primarily used by senior citizens, contiguous to a street other than a state highway and posted with a standard "SENIOR" warning sign. A local authority is not required to erect any sign pursuant to this paragraph until donations from private sources covering those costs are received and the local agency makes a determination that the proposed signing should be implemented. A local authority may, however, utilize any other funds available to it to pay for the erection of those signs. (b) This section shall become operative on March 1, 2001. Engineering and Traffic Survey 11 City of La Quinta Increase of Local Speed Limits to 65 Miles Per Hour Section 22357. (a) Whenever a local authority determines upon the basis of an engineering and traffic survey that a speed greater than 25 miles per hour would facilitate the orderly movement of vehicular traffic and would be reasonable and safe upon any street other than a state highway otherwise subject to a prima facie limit of 25 miles per hour, the local authority may by ordinance determine and declare a prima facie speed limit of 30, 35, 40, 45, 50, 55 or 60 miles per hour or a maximum speed limit of 65 miles per hour, whichever is found most appropriate to facilitate the orderly movement of traffic and is reasonable and safe. The declared prima facie or maximum speed limit shall be effective when appropriate signs giving notice thereof are erected upon the street and shall not thereafter be revised except upon the basis of an engineering and traffic survey. This section does not apply to any 25 mile per hour prima facie limit, which is applicable when passing a school building or the grounds thereof or when passing a senior center or other facility primarily used by senior citizens. (b) This section shall become operative on the date specified in subdivision (c) of Section 22366. Downward Speed Zoning Section 22358.5. It is the intent of the Legislature that physical conditions such as width, curvature, grade and surface conditions, or any other condition readily apparent to a driver, in the absence of other factors, would not require special downward speed zoning, as the basic rule of Section 22350 is sufficient regulation as to such conditions. Boundary Line Streets Section 22359. With respect to boundary line streets and highways where portions thereof are within different jurisdictions, no ordinance adopted under Sections 22357 and 22358 shall be effective as to any such portion until all authorities having jurisdiction of the portions of the street concerned have approved the same. This section shall not apply in the case of boundary line streets consisting of separate roadways within different jurisdictions. Speed Trap Prohibition Section 40801. No peace officer or other person shall use a speedtrap in arresting, or participating or assisting in the arrest of, any person for any alleged violation of this code nor shall any speed trap be used in securing evidence as to the speed of any vehicle for the purpose of an arrest or prosecution under this code. Engineering and Traffic Survey 12 City of La Quinta Speed Trap Section 40802. (a) A "speed trap" is either of the following: (1) A particular section of a highway measured as to distance and with boundaries marked, designated, or otherwise determined in order that the speed of a vehicle may be calculated by securing the time it takes the vehicle to travel the known distance. (2) A particular section of a highway with a prima facie speed limit that is provided by this code or by local ordinance under subparagraph (A) of paragraph (2) of subdivision (a) of Section 22352, or established under Section 22354, 22357, 22358, or 22358.3, if that prima facie speed limit is not justified by an engineering and traffic survey conducted within five years prior to the date of the alleged violation, and enforcement of the speed limit involves the use of radar or any other electronic device that measures the speed of moving object. This paragraph does not apply to a local street, road, or school zone. (b)(1) For purposes of this section, a local street or road is defined by the latest functional usage and federal -aid system maps submitted to the federal Highway Administration, except that when these maps have not been submitted, or when the street or road is not shown on the maps, a "local street or road" means a street or road that primarily provides access to abutting residential property and meets the following three conditions: (A) Roadway width of not more than 40 feet. (B) Not more than one-half mile of a uninterrupted length. Interruptions shall include official traffic control devices as defined in Section 445. (C) Not more than one traffic lane in each direction. (2) For purposes of this section "school zone" means that area approaching or passing a school building or the grounds thereof that is contiguous to a highway and on which is posted a standard "SCHOOL" warning sign, while children are going to or leaving the school either during school hours or during the noon recess period. "School zone" also includes the area approaching or passing any school grounds that are not separated from the highway by a fence, gate, or other physical barrier while the grounds are in use by children if that highway is posted with a standard "SCHOOL" warning sign. (c)(1) When all the following criteria are met, paragraph (2) of this subdivision shall be applicable and subdivision (a) shall not be applicable: (A) When radar is used, the arresting officer has successfully completed a radar operator course of not less than 24 hours on the use of police traffic radar, and the course was approved and certified by the Commission on Peace Officer Standards and Training. (B) When laser or any other electronic device is used to measure the speed of moving objects, the arresting officer has successfully completed the training required in subparagraph (A) and an additional training course of not less than two hours approved and certified by the Commission on Peace Officer Standards and Training. Engineering and Traffic Survey 13 City of La Quinta (C)(i) The prosecution proved that the arresting officer complied with subparagraphs (A) and (B) and that an engineering and traffic survey has been conducted in accordance with subparagraph (B) of paragraph (2). The prosecution proved that, prior to the officer issuing the notice to appear, the arresting officer established that the radar, laser, or other electronic device conformed to the requirements of subparagraph (D). (ii) The prosecution proved the speed of the accused was unsafe for the conditions present at the time of alleged violation unless the citation was for a violation of Section 22349, 22356, or 22406. (D) The radar, laser, or other electronic device used to measure the speed of the accused meets or exceeds the minimal operational standards of the National Traffic Highway Safety Administration, and has been calibrated within the three years prior to the date of the alleged violation by an independent certified laser or radar repair and testing or calibration facility. (2) A "speed trap" is either of the following: (A) A particular section of a highway measured as to distance and with boundaries marked, designated, or otherwise determined in order that the speed of a vehicle may be calculated by securing the time it takes the vehicle to travel the known distance. (B)(i) A particular section of a highway or state highway with a prima facie speed limit that is provided by this code or by local ordinance under subparagraph (A) of paragraph (2) of subdivision (a) of Section 22352, or established under Section 22354, 22357, 22358, or 22358.3, if that prima facie speed limit is not justified by an engineering and traffic survey conducted within one of the following time periods, priorto the date of the alleged violation, and enforcement of speed limit involves the use of radar or any other electronic device that measures the speed of moving objects: (1) Except as specified in subclause (II), seven years. (II) If an engineering and traffic survey was conducted more than seven years prior to the date of the alleged violation, and a registered engineer evaluates the section of the highway and determines that no significant changes in roadway or traffic conditions have occurred including, but not limited to, changes in adjoining property or land use, roadway width, or traffic volume, 10 years. (ii) This subparagraph does not apply to a local street, road, or school zone. Speed Trap Evidence Section 40803. (a) No evidence as to the speed of a vehicle upon a highway shall be admitted in any court upon the trial of any person in any prosecution under this code upon a charge involving the speed of a vehicle when the evidence is based upon or obtained from or by the maintenance or use of a speedtrap. Engineering and Traffic Survey 14 City of La Quinta (b) In any prosecution under this code of a charge involving the speed of a vehicle, where enforcement involves the use of radar or other electronic devices which measure the speed of moving objects, the prosecution shall establish, as part of its prima facie case, that the evidence or testimony presented is not based upon a speedtrap as defined in paragraph (2) of subdivision (a) of Section 40802. (c) When a traffic and engineering survey is required pursuant to paragraph (2) of subdivision (a) of Section 40802, evidence that a traffic and engineering survey has been conducted within five years of the date of the alleged violation or evidence that the offense was committed on a local street or road as defined in paragraph (2) of subdivision (a) of Section 40802 shall constitute a prima facie case that the evidence or testimony is not based upon a speedtrap as defined in paragraph (2) subdivision (a) of Section 40802. Engineering and Traffic Survey 15 City of La Quinta APPENDIX A Street Segment Data Engineering and Traffic Survey City of La Quinta CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Avenida Bermudas between Avenue 52 and Calle Arroba DATE: 2/4/11 TIME: 10:20 OBSERVER: Leo Tualla LOCATION: 1 P kRT I: HIGHWAY & ROADWAY CHARACTERISTICS Sight Distance Obstructions? SIB NIB Notes es or no 1. Horizontal No 2. Vertical No 3. Superelevation (%) None 4. Shoulder Conditions (paved or unpaved) Paved Paved 5. Profile Conditions (grade,%) 6. Commercial Driveway Characteristics At -Grade Driveways on West (at grade, dustpan, etc) side only 7. Pedestrian Traffic in the Roadway without Yes No Sidewalk on East sidewalks (yes or no) side only 8. Adjacent Land Use Residential Residential (residential, commercial, office, etc) No offsets TS at Avenue 52; 9. Intersection Spacing and Offsets Stop at Calle (spacing, feet -offsets, yes or no) Nogales, Calle Colima 10. Pavement Condition Good (good, satisfactory, poor) 11. Truck Traffic (heavy, moderate, light) Light 4 lanes, divided with Bike lane on East 12. Channelization (# of lanes, divided, a double yellow stripe side only. Speed undivided, painted, or raised median) humps in both directions. 13. Street Width and Alignment 64' - Straight (width, feet — straight or curved) 14. Traffic Flow Characteristics Light (heavy, moderate, light) 15. Uniformity with the Community Yes (yes or no) 16. Heavy On -Street Parking Turnover Yes Parking allowed on (yes or no) West side only 17. Street Lighting Only at traffic signal location CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Avenida Bermudas between Avenue 52 and Calle Arroba LOCATION: 1 Direction Bi-directional El Northbound * ❑ Eastbound * ❑ Southbound " ❑ Westbound " ►RT II: PREVAILING SPEED MEASUREMENT Location of Radar Measurement 52905 Avenida Bermudas Date of Radar Measurement 1/19/2011 Time of Radar Measurement (24 hour) 11:00 TO 12:00 50%ile (mph) 85%ile (mph) 40 45 10 mph Pace (% of Vehicles) 37-46 (67%) Posted Limit Prevailing Limit 45 mph 45 mph ►RT III: ACCIDENT RECORDS Time Period Evaluated 1/1/2008 TO 12/31/2010 Number of Accidents Midblock 1 Midblock Expected-StatewideNear 3.35 per MVM Accident Rate Acc/MVM Actual 0.13 per MVM PART IV: ADDITIONAL REMARKS 5 MPH reduction recommended based on roadway characteristics RECOMMENDED SPEED LIMIT 40 mph May be used in cases where two or more separate roadways are provided. CERTIFICATION: I, Vanessa Munoz, do hereby certify that this Engineering and Traffic Survey within the City of La Quinta was performed under my supervision and is accurate and complete. I am duly registered in the State of California as a Professional Engineer (Traffic). Vanessa M ;? A //f TE 2341 State Registration Number CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Avenida Bermudas between Calle Arroba and Calle Tecate DATE: 2/4/11 TIME: 11:04 OBSERVER: Leo Tualla LOCATION: 2 C kRT 1: HIGHWAY & ROADWAY CHARACTERISTICS Sight Distance Obstructions? S/B N/B Notes es or no 1. Horizontal Yes Horizontal Curve 2. Vertical No 3. Superelevation (%) None 4. Shoulder Conditions (paved or unpaved) Paved Paved 5. Profile Conditions (grade,%) 6. Commercial Driveway Characteristics At -Grade Driveways on West (at grade, dustpan, etc) side only 7. Pedestrian Traffic in the Roadway without Yes No Sidewalk on East sidewalks (yes or no) side only 8. Adjacent Land Use Residential Residential (residential, commercial, office, etc) 9. Intersection Spacing and Offsets No offsets Stop at Calle Madrid (spacing, feet -offsets, yes or no) 10. Pavement Condition Good (good, satisfactory, poor) 11. Truck Traffic (heavy, moderate, light) Light 12. Channelization (# of lanes, divided, 2 lanes, divided with undivided, painted, or raised median) a double yellow stripe 13. Street Width and Alignment 44' - curved (width, feet — straight or curved) 14. Traffic Flow Characteristics Light (heavy, moderate, light) 15. Uniformity with the Community Yes (yes or no) 16. Heavy On -Street Parking Turnover Yes Parking allowed on (yes or no) West side only 17. Street Lighting No CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Avenida Bermudas between Calle Arroba and Calle Tecate LOCATION: 2 Direction Bi-directional ❑ Northbound* ❑ Eastbound ❑ Southbound ❑ Westbound ►RT II: PREVAILING SPEED MEASUREMENT Location of Radar Measurement 54355 Avenida Bermudas Date of Radar Measurement 1/19/2011 Time of Radar Measurement (24 hour) 10:00 TO 11:00 50%ile (mph) 85%ile (mph) 32 37 10 mph Pace (% of Vehicles) 28-37 (67%) Posted Limit Prevailing Limit 35 mph 35 mph ►RT III: ACCIDENT RECORDS Time Period Evaluated 1/1/2008 TO 12/31/2010 Number of Accidents Midblock 1 Midblock Expected-Statewide/Year 3.05 per MVM Accident Rate Acc/MVM Actual 0.90 per MVM PART IV: ADDITIONAL REMARKS 5 MPH reduction recommended based on roadway characteristics RECOMMENDED SPEED LIMIT 30 mph May be used in cases where two or more separate roadways are provided. CERTIFICATION: I, Vanessa Munoz, do hereby certify that this Engineering and Traffic Survey within the City of La Quinta was performed under my supervision and is accurate and complete. I am duly registered in the State of California as a Professional Engineer (Traffic). 319 A Vanessa Munoz TE 2341 State Registration Number CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Caleo Bav Drive between Avenue 47 and Avenue 48 DATE: 2/4/11 TIME: 11:30 OBSERVER: Leo Tualla LOCATION: 3 P kRT I: HIGHWAY & ROADWAY CHARACTERISTICS Sight Distance Obstructions? S/B N/B Notes es or no 1. Horizontal Yes Horizontal Curve 2. Vertical No 3. Superelevation (%) None 4. Shoulder Conditions (paved or unpaved) Paved Paved 5. Profile Conditions (grade,%) 6. Commercial Driveway Characteristics Dustpan At -Grade Driveways on both (at grade, dustpan, etc) sides 7. Pedestrian Traffic in the Roadway without No No Sidewalks on both sidewalks (yes or no) sides 8. Adjacent Land Use Commercial Residential (residential, commercial, office, etc) 9. Intersection Spacing and Offsets No offsets Stops at Avenue 47 (spacing, feet -offsets, yes or no) & Avenue 48 10. Pavement Condition Good (good, satisfactory, poor) 11. Truck Traffic (heavy, moderate, light) Light 12. Channelization (# of lanes, divided, 2 lanes, divided with a painted median undivided, painted, or raised median) 13. Street Width and Alignment 40' - curved (width, feet — straight or curved) 14. Traffic Flow Characteristics Light (heavy, moderate, light) 15. Uniformity with the Community Yes (yes or no) 16. Heavy On -Street Parking Turnover No No parking allowed (yes or no) on both sides 17. Street Lighting No CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Caleo Bay Drive between Avenue 47 and Avenue 48 LOCATION: 3 Direction Bi-directional ❑ Northbound* ❑ Eastbound' ❑ Southbound ❑ Westbound ►RT II: PREVAILING SPEED MEASUREMENT Location of Radar Measurement 47647 Caleo Bay Dr Date of Radar Measurement 1/20/2011 Time of Radar Measurement (24 hour) 10:30 TO 11:30 50%ile (mph) 85%ile (mph) 28 32 10 mph Pace (% of Vehicles) 25-34 (82%) Posted Limit Prevailing Limit 30 mph 30 mph ►RT III: ACCIDENT RECORDS Time Period Evaluated 1/1/2008 TO 12/31/2010 Number of Accidents Midblock 0 Midblock Accident Rate Expected-Statewide/Year 3.05 per MVM Acc/MVM Actual 0.00 per MVM PART IV: ADDITIONAL REMARKS Closest to 85th percentile speed RECOMMENDED SPEED LIMIT 30 mph T I * May be used in cases where two or more separate roadways are provided. CERTIFICATION: I, Vanessa Munoz, do hereby certify that this Engineering and Traffic Survey within the City of La Quinta was performed under my supervision and is accurate and complete. I am duly registered in the State of California as a Professional Engineer (Traffic). 319111 vanessa munoz TE 2341 State Registration Number CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Fred Waring Drive between Washington Street and DATE: 2/4/11 TIME: 15:30 OBSERVER: Leo Tualla P Jefferson Street LOCATION: 4 ART 1: HIGHWAY & ROADWAY CHARACTERISTICS Sight Distance Obstructions? E/B W/B Notes es or no 1. Horizontal No 2. Vertical No 3. Superelevation (%) None 4. Shoulder Conditions (paved or unpaved) Paved Paved 5. Profile Conditions (grade,%) 6. Commercial Driveway Characteristics At -Grade At -Grade Driveways only on (at grade, dustpan, etc) both sides 7. Pedestrian Traffic in the Roadway without No No Sidewalk on both sidewalks (yes or no) sides 8. Adjacent Land Use Residential Residential (residential, commercial, office, etc) No offsets TS at Washington, 9. Intersection Spacing and Offsets Palm Royale, (spacing, feet -offsets, yes or no) Adams, Dune Palms, Jefferson 10. Pavement Condition Good (good, satisfactory, poor) 11. Truck Traffic (heavy, moderate, light) Light 6 lanes, divided with 4 lanes from Adams 12. Channelization (# of lanes, divided, raised and painted to Dune. Bike lane undivided, painted, or raised median) medians both sides from Washington to Adams 13. Street Width and Alignment 94' - straight (width, feet — straight or curved) 14. Traffic Flow Characteristics Moderate (heavy, moderate, light) 15. Uniformity with the Community Yes Yes (yes or no) Yes Parking allowed on 16. Heavy On -Street Parking Turnover North side from (yes or no) Adams to Dune Palms 17. Street Lighting Only at traffic signal locations CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Fred Waring Drive between Washington Street and Jefferson Street 1PIA P LOCATION: 4 Direction Bi-directional ❑ Northbound* 1 ❑ Eastbound * ❑ Southbound ❑ Westbound RT II: PREVAILING SPEED MEASUREMENT Location of Radar Measurement 79240 Fred Waring Date of Radar Measurement 1/18/2011 Time of Radar Measurement (24 hour) 13:00 TO 14:00 50%ile (mph) 85%ile (mph) 47 51 10 mph Pace (% of Vehicles) 43-52 (77%) Posted Limit Prevailing Limit 50 mph 50 mph ART III: ACCIDENT RECORDS Time Period Evaluated 1/1/2008 TO 12/31/2010 Number of Midblock 14 Accidents Midblock Expected-Statewide/Year 2.10 per MVM Accident Rate Acc/MVM Actual 0.35 per MVM PART IV: ADDITIONAL REMARKS -T Closest to 85t" percentile speed RECOMMENDED SPEED LIMIT 50 mph . may oe used in cases where two or more separate roadways are provided. CERTIFICATION: 1, Vanessa Munoz, do hereby certify that this Engineering and Traffic Survey within the City of La Quinta was performed under my supervision and is accurate and complete. I am duly registered in the State of California as a Professional Engineer (Traffic). Vanessa TE 2341 State Registration Number PART IV: ADDITIONAL REMARKS -T Closest to 85t" percentile speed RECOMMENDED SPEED LIMIT 50 mph . may oe used in cases where two or more separate roadways are provided. CERTIFICATION: 1, Vanessa Munoz, do hereby certify that this Engineering and Traffic Survey within the City of La Quinta was performed under my supervision and is accurate and complete. I am duly registered in the State of California as a Professional Engineer (Traffic). Vanessa TE 2341 State Registration Number CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Highway 111 between West City Limit and Adams Street DATE: 2/4/11 TIME: 12:22 OBSERVER: Leo Tualla LOCATION: 5 P ART I: HIGHWAY & ROADWAY CHARACTERISTICS Sight Distance Obstructions? E/B W/B Notes es or no 1. Horizontal Yes Horizontal Curve 2. Vertical No 3. Superelevation (%) None 4. Shoulder Conditions (paved or unpaved) Paved Paved 5. Profile Conditions (grade,%) 6. Commercial Driveway Characteristics At -Grade At -Grade Driveways only on (at grade, dustpan, etc) both sides 7. Pedestrian Traffic in the Roadway without No No Sidewalk on both sidewalks (yes or no) sides 8. Adjacent Land Use Commercial Commercial (residential, commercial, office, etc) No offsets TS at Plaza La 9. Intersection Spacing and Offsets Quinta, Washington, (spacing, feet -offsets, yes or no) Simon, La Quinta Center, Adams 10. Pavement Condition Satisfactory (good, satisfactory, poor) 11. Truck Traffic (heavy, moderate, light) Moderate 12. Channelization (# of lanes, divided, 6 lanes, divided with Raised median undivided, painted, or raised median) a raised median varies from 8'-16' 13. Street Width and Alignment 50' - curved 58' - curved (width, feet — straight or curved) 14. Traffic Flow Characteristics Heavy (heavy, moderate, light) 15. Uniformity with the Community Yes Yes (yes or no) 16. Heavy On -Street Parking Turnover No No No parking allowed (yes or no) on both sides 17. Street Lighting Only at traffic signal locations CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Highway 111 between West City Limit and Adams Street LOCATION: 5 Direction Bi-directional ❑ Northbound * ❑ Eastbound * ❑ Southbound ❑ Westbound ►RT II: PREVAILING SPEED MEASUREMENT Location of Radar Measurement 78595 Highway 111 Date of Radar Measurement 1/20/2011 Time of Radar Measurement (24 hour) 9:45 TO 10:15 50%ile (mph) 85%ile (mph) 41 48 10 mph Pace (% of Vehicles) 38-47 (54%) Posted Limit Prevailing Limit 50/55 mph 50 mph ►RT III: ACCIDENT RECORDS Time Period Evaluated 1/1/2008 TO 12/31/2010 Number of Accidents Midblock 18 Midblock Accident Expected-Statewide/Year 2.40 per MVM Rate Acc/MVM Actual 0.52 per MVM PART IV: ADDITIONAL REMARKS Closest to 85th percentile speed RECOMMENDED SPEED LIMIT 50 mph may oe used in cases wnere two or more separate roadways are provided. CERTIFICATION: I, Vanessa Munoz, do hereby certify that this Engineering and Traffic Survey within the City of La Quinta was performed under my supervision and is accurate and complete. I am duly registered in the State of California as a Professional Engineer (Traffic). Vanessa Munoz / -� Date TE 2341 State Registration Number CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Highway 111 between DATE: 2/4/11 TIME: 14:15 P Adams Street and East City Limit OBSERVER: Leo Tualla LOCATION: 6 ART I: HIGHWAY & ROADWAY CHARACTERISTICS Sight Distance Obstructions? E/B W/B Notes es or no 1. Horizontal Yes Horizontal Curve 2. Vertical No 3. Superelevation (%) None 4. Shoulder Conditions (paved or unpaved) Paved Paved 5. Profile Conditions (grade,%) 6. Commercial Driveway Characteristics At -Grade At -Grade Driveways only on (at grade, dustpan, etc) both sides 7. Pedestrian Traffic in the Roadway without No No Sidewalk on both sidewalks (yes or no) sides 8. Adjacent Land Use Commercial Commercial (residential, commercial, office, etc) 9. Intersection Spacing and Offsets No offsets TS at Adams, La (spacing, feet -offsets, yes or no) Quinta, Dune Palm, Costco, Jefferson 10. Pavement Condition Satisfactory (good, satisfactory, poor) 11. Truck Traffic (heavy, moderate, light) Moderate 12. Channelization (# of lanes, divided, 6 lanes, divided with Raised median undivided, painted, or raised median) a raised median varies from 22 28' 13. Street Width and Alignment 46' - curved 52' - curved (width, feet — straight or curved) 14. Traffic Flow Characteristics Heavy (heavy, moderate, light) 15. Uniformity with the Community Yes Yes (yes or no) 16. Heavy On -Street Parking Turnover No No No parking allowed (yes or no) on both sides 17. Street Lighting Only at traffic signal locations CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Highway 111 between Adams Street and East Citv Limit LOCATION: 6 Direction Bi-directional ❑ Northbound* ❑ Eastbound ElSouthbound ❑ Westbound ►RT II: PREVAILING SPEED MEASUREMENT Location of Radar Measurement 79390 Highway 111 Date of Radar Measurement 1/20/2011 Time of Radar Measurement (24 hour) 9:00 TO 9:30 50%ile (mph) 85%ile (mph) 41 48 10 mph Pace (% of Vehicles) 37-46 (58%) Posted Limit Prevailing Limit 50/55 mph 50 mph ►RT III: ACCIDENT RECORDS Time Period Evaluated 1/1/2008 TO 12/31/2010 Number of Accidents Midblock 14 Midblock Accident Expected-Statewide/Year 2.40 per MVM Rate Acc/MVM Actual 0.30 per MVM PART IV: ADDITIONAL REMARKS Closest to 85th percentile speed RECOMMENDED SPEED LIMIT 50 mph May be used in cases where two or more separate roadways are provided. CERTIFICATION: I, Vanessa Munoz, do hereby certify that this Engineering and Traffic Survey within the City of La Quinta was performed under my supervision and is accurate and complete. I am duly registered in the State of California as a Professional Engineer (Traffic). Vanessa Munoz Date C,1 j TE 2341 State Registration Number CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Monroe Street between Avenue 58 and Avenue 60 DATE: 2/4/11 TIME: 9:30 OBSERVER: Leo Tualla LOCATION: 7 P ART I: HIGHWAY & ROADWAY CHARACTERISTICS Sight Distance Obstructions? S/B NIB Notes es or no 1. Horizontal No 2. Vertical No 3. Superelevation (%) None Paved Unpaved Small portion south 4. Shoulder Conditions (paved or unpaved) of Ave unpaved on west side 5. Profile Conditions (grade,%) 6. Commercial Driveway Characteristics At -Grade Driveway on west (at grade, dustpan, etc) side only 7. Pedestrian Traffic in the Roadway without No Yes Sidewalk on west sidewalks (yes or no) side only 8. Adjacent Land Use Residential Commercial (residential, commercial, office, etc) 9. Intersection Spacing and Offsets No offsets Stop at Ave 58, Ave (spacing, feet -offsets, yes or no) 60 10. Pavement Condition Good (good, satisfactory, poor) 11. Truck Traffic (heavy, moderate, light) Light 12. Channelization (# of lanes, divided, 3 lanes, divided with Bike lane on west undivided, painted, or raised median) a raised median side only. 13. Street Width and Alignment 34' - straight 16' - straight 18' raised medians (width, feet — straight or curved) 14. Traffic Flow Characteristics Light (heavy, moderate, light) 15. Uniformity with the Community Yes Yes (yes or no) 16. Heavy On -Street Parking Turnover No No parking allowed (yes or no) on both sides 17. Street Lighting No CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Monroe Street between Avenue 58 and Avenue 60 LOCATION: 7 Direction Bi-directional ❑ Northbound* ❑ Eastbound ' 1-1Souhbound ❑ Westbound' ►RT II: PREVAILING SPEED MEASUREMENT Location of Radar Measurement 59002 Monroe St Date of Radar Measurement 1/18/2011 Time of Radar Measurement (24 hour) 11:00 TO 12:00 50%ile (mph) 85%ile (mph) 50 56 10 mph Pace (% of Vehicles) 46-55 (77%) Posted Limit Prevailing Limit 55 55 mph ►RT III: ACCIDENT RECORDS Time Period Evaluated 1/1/2008 TO 12/31/2010 Number of Accidents Midblock 0 Midblock Accident Rate Expected-Statewide/Year 1.75 per MVM Acc/MVM Actual 0.00 per MVM PART IV: ADDITIONAL REMARKS Closest to 85th percentile speed RECOMMENDED SPEED LIMIT 55 mph may be used in cases where two or more separate roadways are provided. CERTIFICATION: I, Vanessa Munoz, do hereby certify that this Engineering and Traffic Survey within the City of La Quinta was performed under my supervision and is accurate and complete. I am duly registered in the State of California as a Professional Engineer (Traffic). Vanessa Mu TE 2341 State Registration Number CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Westward Ho Drive (EB) between DATE: 2/4/11 TIME: 16:30 P Roadrunner Lane and Jefferson Street OBSERVER: Leo Tualla LOCATION: 8 ART I: HIGHWAY & ROADWAY CHARACTERISTICS Sight Distance Obstructions? EBB WEB Notes es or no 1. Horizontal No 2. Vertical No 3. Superelevation (%) None 4. Shoulder Conditions (paved or unpaved) Paved 5. Profile Conditions (grade,%) 6. Commercial Driveway Characteristics At -Grade Driveways on Both (at grade, dustpan, etc) sides 7. Pedestrian Traffic in the Roadway without No Sidewalks on both sides sidewalks (yes or no) 8. Adjacent Land Use Residential (residential, commercial, office, etc) 9. Intersection Spacing and Offsets No offsets TS at Jefferson; (spacing, feet -offsets, yes or no) Stop at Roadrunner 10. Pavement Condition Satisfactory (good, satisfactory, poor) 11. Truck Traffic (heavy, moderate, light) Light 12. Channelization (# of lanes, divided, 2 lanes, divided with Bike lane on North undivided, painted, or raised median) a painted median side 13. Street Width and Alignment 52 (width, feet — straight or curved) 14. Traffic Flow Characteristics Light (heavy, moderate, light) 15. Uniformity with the Community Yes (yes or no) 16. Heavy On -Street Parking Turnover No No parking allowed on both sides (yes or no) 17. Street Lighting Only at traffic signal location CITY OF LA QUINTA ENGINEERING & TRAFFIC SURVEY STREET: Westward Ho Drive (EB) between Roadrunner Lane and Jefferson Street LOCATION: 8 Direction Bi-directional El Northbound* ® Eastbound * ❑ Southbound ❑ Westbound ►RT II: PREVAILING SPEED MEASUREMENT Location of Radar Measurement 79875 West Ward Ho Date of Radar Measurement 1/18/2011 Time of Radar Measurement (24 hour) 14:30 TO 15:30 50%ile (mph) 85%ile (mph) 34 1 38 10 mph Pace (% of Vehicles) 31-40 (83%) Posted Limit Prevailing Limit NP 40 ►RT III: ACCIDENT RECORDS Time Period Evaluated 1/1/2008 TO 12/31/2010 Number of Accidents Midblock 1 Midblock Expected-Statewide/Year 3.05 per MVM Accident Rate Acc/MVM Actual 2.08 per MVM PART IV: ADDITIONAL REMARKS 5 MPH reduction recommended based on roadway characteristics RECOMMENDED SPEED LIMITI T 35 mph " May be used in cases where two or more separate roadways are provided. CERTIFICATION: I, Vanessa Munoz, do hereby certify that this Engineering and Traffic Survey within the City of La Quinta was performed under my supervision and is accurate and complete. I am duly registered in the State of California as a Professional Engineer (Traffic). 1 i!IAM Vanessa Munoz TE 2341 State Registration Number Radar Speed Distribution Forms Engineering and Traffic Survey City of La Quinta ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■©■■■■■■■ ■■■■■■■■■©■■■■■■■ ■■■■■■■■■u■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ MMMMMMMMM■MMM MMMMMMMMM■MMM MMMMMMMMM■MMM MMMMMMMMM■MMM MMMMMMMMM■MMM MMMMMMMMM■MMM MOMMMMMMMEMMM mmmmmmmmmommm mmmmmmmmmommm MOMMMMMMMEMMM mmmmmmmmmmmom mmmmmmmoommmm MMMMMMOMMEMOM mmmmmmmmmmmm■ MMMMMMMMMMMM■ mmmmmmmmmmmm■ MMMMMMMMMMMM■ MMMMMMMMMMMM■ mmmmmommmmmm■ mmmmmmmmmmmm■ MMMMMMMMMMMM■ MMMMMMMMMMMM■ ©©MMMMMMMMMM■ moommmmmmmmm■ Eiommummtmmmm■ Eiommommmmmmm■ ©eiommumtmmmm■ mmmmmmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmm: mmmmmmmmmmmmm mmmmmmmmmmmmm: mmmmmmmmmmmmm mmmmmmmmmmmmm: mmmmmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmm: mmmmmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmm: mmmmmmmmmmmmm nommmmmmmmmmmm MMMEMMMEMMMME MEMMMMEMMMMMEM MEMENEEMMMMMM: MEMOMMMMEMMM MMMMMMEMMMMMEM ■■■■M■■M■■M■■■■■■■■■©©©©©mm©■■■m■■■■■■■■■m■■■■■m■ ■M■■M■■M■■■■■M■■■©©©©©m©©©m©■■■■■■m■■■■■■■■■■■■■■ ■■■■■■■■■■■■■M■■■©©©©©©©©©©©■■■m■■m■■■■■■■■■■■■■■ ■■■■■■■■■■■■■m©©©©©moomm mmuoo■■■■m■■■■m■■■■■■■■■ ■■■������EiE�E�E�E�E�E� EiEaEi E�E�E�E�EiE�E1 E�EiE�EiE1 E�E�E�E�E�E������������■ FIN cc;:::; mmmmmmm mmmmomm mmmmmmm mmmmmu©mo©© mmmmmummm©m MMMMMMQUWM© mmmm©mmu©©© mmmm©©©©©©© MMMM©MQM©©© ©mmmwm©m©mm ommmmmmmm mmmmmmmmm mmmmmmmmm mommmommm mommmmmmm ©©©©©mmmm ©©m©©mmmm ©©m©©mmmm mummoommm moomm©©©© woommommo eye mteaF mmmm ommmmmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmmm mmmmtmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmmm mtmmmmmmmmmmmm mmmmmmmmmmmmmm mmmmmmmmmmmmmm moommmmmmmmmmm ©©©©©mmmmmmmmm ©ommoommmmmmmm ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ............... Mai ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ EiEiEiEiEiEiEiEiEiEiF iEiEi■F3■■Ei■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■ ■■■■ ■ ■ ■■ ■■■ ■ ■■■■■ ■ ■ ■ ■ ■■■■■■ ■ ■ ■■ ■■■■■ ■■ ■ ■■■■ ■■■ ■ ■■ ■■ ■ ■■ ■■■■■■ ■ ■ ■ ■ ■■■ ■■■ ■ ■ ■■ ■■■ ■■ ■■ ■ ■■■■ ■■■ ■ ■■ ■■ ■ ■■ ■■■■■■ ■ ■■ ■ ■■■ ■■■ ■ ■ ■■ ■■■ ■■ ■■ ■ ■■■■ ■ ■■ ■ ■■ ■■ ■ ■■ ■■■■ ■■ ■ ■■ ■ ■■■ ■■■ ■■ ■■■■■■■ ■ ■ ■ ■■■■ ■■■ ■ ■■ ■■■ ■■ ■■■■■■ ■ ■■■ ■ ■■■■■ ■■ ■■■ ■■■■ ■ ■ ■ ■■ ■■■■■ ■■■ ■■■ ■■■ ■■ ■■■■■■ ■ ■ ■■■■■■■ ■■ ■ ■■■■ ■■ ■ ■ ■■■ ■■■ ■ ■■ ■■ ■ ■■■ ■■ ■■■■ ■■ ■■ ■■■■■■■■■ ■ ■■■■ ■ ■ ■ ■ ■■■ ■■■ ■ ■■■■■■■■ ■■ ■■■■ ■■■■ ■■■ ■ ■ ■■■■ ■ ■■■■■ ■■ ■■■■ ■■■ ■ ■■■ ■ ■ ■ ■■ ■■ ■■■ ■ ■■■■ ■■■ ■ ■ ■■■ ■■ ■■■■■ ■■ ■■■■ ■■■■ ■ ■■ ■ ■■ ■ ■ ■ ■■■ ■■ ■■ ■ ■■■■ ■ ■ ■ ■■ ■ ■■■■■■ ■ ■ ■■■■ ■■■ ■ ■ ■ ■ ■ ■■ ■ ■■ ■■■ ■ ■ ■■ ■ ■■■ ■■ ■ ■ ■■ ■ ■ ■■■■■ ■ ■ ■E1■E1©E1E�E1©©©©©■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ©ommuEi■■■■■©■■■■■■■■■■■■■■■■■■■■■■■ APPENDIX B Survey Equipment Engineering and Traffic Survey City of La Quinta SURVEY EQUIPMENT USED The radar equipment used to collect speed measurements for this survey was a K-15 Model Hand -Held traffic Radar manufactured by MPH Industries of Owensboro, Kentucky. The calibration of the unit was checked before each series of measurements were taken. Tests of the unit were conducted in accordance with the manufacturer's specifications. The K-15 Hand -Held Traffic Radar was last calibrated on September 23, 2010 by RHF Inc. Engineering and Traffic Survey City of La Quinta APPENDIX C Speed Limit Map Engineering and Traffic Survey City of La Quinta LEGEND: SPEED LIMIT MPH 30 35 40 45 50 55 60 = CITY LIMITS CITY OF LA QUINTA SPEED LIMITS PREPARED FEBRUARY 2011 WILLDAN Engineering