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Home My WebLink About2012-04-02; Traffic Safety Commission; ; Investigate the need to establish an ALL-WAY STOP at the intersection of Pio Pico Drive and Stratford LaneCITY OF CARLSBAD TRAFFIC SAFETY COMMISSION STAFF REPORT COMMISSION MEETING OF: April 2, 2012 LOCATION: INITIATED BY: Intersection of Pio Pico Drive and Stratford Lane Jane Boyd ITEMNO.6A REQUESTED ACTION: Investigate the need to establish an ALL-WAY STOP at the intersection of Pio Pico Drive and Stratford Lane. BACKGROUND: The subject intersection is located in the northwest quadrant of the city close to City Hall (see Exhibit 1). Due to the geometric configuration of the intersection and the prevalence of parked cars on the east side of Pio Pico Drive, sight distance from Stratford Lane is limited and access to Pio Pico Drive can be difficult. The request was submitted by a resident of Carlsbad. In the period between 2002 and 2012, staff has received nine separate complaints regarding either sight distance or the speed of vehicles at the subject intersection. DATA: Pio Pico Drive and Stratford Lane are unclassified in the Circulation Element of the General Plan. Pio Pico Drive features curb and gutter, sidewalk and some street lights on east side of the street but only concrete curb on the west side. It has a curb-to-curb width of 34 feet with a single travel lane in each direction, separated by a painted double yellow centerline. On-street parking is allowed only on the east side of Pio Pico Drive to serve the many businesses that exist on the east side of the street. The 1-5 freeway is directly adjacent to Pio Pico Drive on the west side. Stratford Lane features curb and gutter, and sidewalk on both sides of the street and primarily serves single family residences. As is the case on many of the older streets in this part of the city, street lights are not present on this portion of Stratford Lane. Stratford Lane has a curb-to-curb width of 34 feet, and is not striped. On-street parking is allowed on both sides of Stratford Lane. Traffic control on Pio Pico Drive is provided by a traffic signal at the intersection of Carlsbad Village Drive and an ALL-WAY STOP at the intersection of Las Flores Drive. As part of this request, staff conducted an analysis to establish an ALL-WAY STOP at the subject intersection. The analysis is based on Section 2B.07 of the California Manual on Uniform Traffic Control Devices (MUTCD) which specifies the consideration of minimum traffic volumes, accident history, vehicle/pedestrian conflicts, sight distance restrictions and other criteria to determine whether or not an ALL-WAY STOP is justified at a particular location. A 24-hour approach count was conducted on March 7, 2012, the results of which are shown on Table 1. Pagel - CITY OF CARLSBAD TRAFFIC SAFETY COMMISSION STAFF REPORT COMMISSION MEETING OF: ( continued) April 2, 2012 ITEMN0.6A Table 1: 24-Hour Traffic Count Summary at Pio Pico Drive and Stratford Lane Pio Pico Drive Stratford Lane Total Time Northbound Southbound Subtotal NIA Westbound Subtotal Volume 0000-0JOO 4 4 8 I I 9 0100-0200 0 I I I 1 2 0200-0300 2 0 2 0 0 2 0300-0400 2 2 4 0 0 4 0400-0500 3 0 3 2 2 5 0500-0600 1 10 11 3 3 14 0600-0700 19 15 34 6 6 40 0700-0800 100 51 151 8 8 159 0800-0900 J08 54 162 15 15 177 0900-1000 43 30 73 12 12 85 1000-1 JOO 72 43 115 32 32 147 1 J00-1200 72 60 132 26 26 158 1200-1300 70 49 119 24 24 143 1300-1400 82 54 136 39 39 175 1400-1500 138 73 211 49 49 260 1500-1600 72 59 131 48 48 179 1600-1700 79 54 133 23 23 156 1700-1800 87 32 119 16 16 135 1800-1900 64 37 JOI 18 18 119 1900-2000 46 16 62 14 14 76 2000-2JOO 31 10 41 10 10 51 2100-2200 14 8 22 0 0 22 2200-2300 12 4 16 1 1 17 2300-2400 3 2 5 3 3 8 Totals 1124 668 1792 351 351 2143 In the past five years, there has been one reported collision at the subject intersection. Based on traffic volumes and collision history, the intersection of Pio Pico Drive and Stratford Lane did not meet the California MUTCD criteria for ALL-WAY STOP installation. Staff also conducted field measurements of the existing sight distance conditions at the subject intersection. The posted speed limit on this portion of Pio Pico Drive is 25 miles per hour and the minimum stopping sight distance required for 25 miles per hour is 150 feet. Critical speeds on this portion of Pio Pico Drive have not been measured but based on the critical speed of Pio Pico Drive, south of Carlsbad Village Drive, staff believes that the critical speed is most likely higher than 25 miles per hour. The results of the sight distance evaluation conducted by staff are shown in Table 2 and consider the minimum stopping sight distance requirements for 25 miles per hour. Table 2: Sight Distance Evaluation at Pio Pico Drive and Stratford Lane Location Measured Sl•ht Distance Minimum SSD for 25 MPH Meets SSD for 25 MPH? Lookine to the North 154' 150' Yes Lookino-to the South 130' 150' NO Page2 - CITY OF CARLSBAD TRAFFIC SAFETY COMMISSION STAFF REPORT COMMISSION MEETING OF: ( continued) April 2, 2012 ITEMNO.6A Figures I and 2 are photographs that show the sight distance conditions from Stratford Lane looking to the north and south, respectively. Figure 1: Sight distance from Stratford Lane looking to the north Figure 2: Sight distance from Stratford Lane looking to the south Page3 ...... CITY OF CARLSBAD TRAFFIC SAFETY COMMISSION STAFF REPORT COMMISSION MEETING OF: ( continued) April 2, 2012 ITEMNO.6A Parking demand on this portion of Pio Pico Drive is very high. Staff has already implemented portions of red curb on the east side of Pio Pico Drive just to the north of Stratford Lane and just to south of Stratford Lane to improve sight distance at the expense of parking removal. Section 2B.07 of the California MUTCD allows consideration of an ALL-WAY STOP at "locations where a road user, after stopping, cannot see conflicting traffic and is not able to reasonably safely negotiate the intersection unless the conflicting cross traffic is also required to stop. " RECOMMENDATION: Based on the findings contained in this report, the Traffic Safety Coordinating Committee recommends the installation of an ALL-WAY STOP at the intersection of Pio Pico Drive and Stratford Lane. NECESSARY CITY COUNCIL ACTION: The City Council must adopt an ordinance to establish the STOP control as recommended. Page4 . •," ' . . ' . , :_ . - " - · : . , ·_ w , , . ' . \• ~ - ' ~ .. . • , ti ~- . ; ~, L \ '. ' I ' \ :. /~ · ., , . . \ ... ~. 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