ENGINEERING AND TRAFFIC SURVEY FOR
SPEED LIMITS
ATTACHMENT 5
BACKGROUND
• The Engineering and Traffic Survey (ETS) for speed
limits is intended to serve as the basis for the
establishment and enforcement of speed limits.
• California Vehicle Code Requires
ETS every 5 years
5+2 years with special training for the arresting officer 5+2+7 years with registered engineer evaluation
• The current Traffic Survey, which was approved on
October 15, 2013, is expiring, and it requires a
registered engineer to evaluates the current roadway
conditions and the newly constructed roadways
within City of Manteca.
ATTACHMENT 5
Data Collection & Considerations in The ETS
• Field Review
• Segment Length and width
• Manual radar Surveys
• Number of lanes and other striping factors
• Land use and Proximity of schools, parks/recreation area • Statistical Data
• 85th Percentile Speed
• The 10-mph pace
• 50th percentile speed
• Percent of Vehicles in Pace speed
• Collision History
• Collision rate calculations
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RECOMMENDATIONS
• The ETS studies 106 locations and recommends a change in the posted speed limit for the following ten (10) segments. All other posted speed limits are to remain the same:
No. Street Segment Existing Speed Limit
(mph)
Recommended
Speed Limit (mph)
2 Airport Way, Daisywood Dr to UPRR 45 40
3 Airport Way, UPRR to Crom St 45 40
12 Atherton Drive, Union Rd to Airport Way 35 WB and 45-35 EB 45 55 Main Street, Woodward Ave to Sedan Ave 40 SB and 40-45 NB 40 59 Mono Street, Pillsbury Rd to Springfield Dr None 25
67 Oleander Avenue, 775 ft. south of Sephos St to Red Pheasant Ln None 25 86 Union Road, Wawona St to 400 ft. south of Sephos St 40 SB and 40-35 NB 35 92 Wetmore Street, Main St to Mellon Ave 30 35
98 Woodward Avenue, Airport Way to McKinley Ave 35 County / none City 35 99 Woodward Avenue, McKinley Ave to South Woodward Ave None 45 ATTACHMENT 5
Example
ATTACHMENT 5
QUESTIONS?
THANK YOU!
ATTACHMENT 5