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TABLE 5
<br /> EVALUATION CRITERIA FOR LEVEL OF SERVICE
<br /> \16a'L t& A,4 4
<br /> Level of Service Level of Service Level of Service Leel of Service Level of Service
<br /> Facility -A- VolumeTraffic -8. volumeTraffic C- Volumesffic D- volumes Volumes
<br /> -E/F-
<br /> VADumesaffic
<br /> Type
<br /> Urban Streets V/C = 0.00-0.60 V/C = 0.61-0.70 V/C = 0.71-0.80 V/C = 0.81-0.90 V/C = 0.91-1.00
<br /> Two Lane 0 - 9,200 9,200 - 10,700 10,700 - 12,000 12,000 - 13,500 13,500 - 15,000
<br /> Four Lane 0 - 18,300 18,300 - 21,300 21;3-00, 24,000 24,000 - 27,000 27,000 - 30,000
<br /> Six Lane 0 - 27,500 27,500 - 32,000 32,000 - 36,000 36,000 - 40,500 40,500 - 45,000
<br /> Eight Lane 0 - 36,600 36,600 - 42,600 42,600 - 48,000 48,000 - 54,000 541000 - 601000
<br /> Freeway' V/C = 0.00-0.31 V/C = 0.31-0.54 V/C = 0.55-0.77 V/C = 0.78-0.93 V/C = 0.94-1.00
<br /> Four Lane 0 - 24,600 24,800 - 44,000 44,000 - 62,000 62,000 - 74,000 74,000 - 80,000
<br /> Six Lane 0 - 37,200 37,200 - 66,000 66,000 - 94,000 94,000 -112,000 112,000 -120,000
<br /> Eight Lane 0 - 49,600 49,600 - 88,000 88,000 -125,000 125,000 -149,000 149,000 -160,000
<br /> Ten Lane 0 - 62,000 62,000 -110,000 110,000 -156,000 156,000 -186,000 186,000 -200,000
<br /> Twelve Lane 0 - 74,400 74,400 -132,000 132,000 -187,000 187,000 -223,000 223,000 -240,000
<br /> - ssumes u mp oesign or ree:;ays.
<br /> Recent Accident History
<br /> Historical accident data, which focuses on incidents occurring over the past three years ,
<br /> (1988-1990) were developed from review of accident reports summarized in the Statewide
<br /> Integrated Traffic Record System (SWITRS) and accident information provided by the
<br /> County of San Joaquin. The SWITRS report was provided by Caltrans for segments in the .
<br /> vicinity of the I-5 and SR 99 interchanges along Eight Mile Road.
<br /> The purpose of analyzing accident records is to establish locations were accident frequency
<br /> is greatest and to explore possible solutions aimed at reducing the number of accidents in
<br /> the future. A summary of accidents which occurred during the three year interval from .
<br /> 1988 to 1990 is presented in Table 6. The accidents were separated into three categories
<br /> based on severity; property damage only (PDO), injury(INJ.), and fatal (FAT.). Pedestrian
<br /> and bicycle related accidents were entered into the PDO column. The accidents lis ed for
<br /> the I-5 and SR 99 areas include accidents which occurred on ramps in addition to the
<br /> accidents at the ramp/street intersections.
<br /> To account for accident severity, the number of equivalent property damage (EPD)
<br /> accidents were calculated. The total EPD accidents were calculated using the following
<br /> equation:
<br /> EPD = P + 6I + 9F, where;
<br /> EPD = The number of Equivalent Property Damage accidents;
<br /> P = The number of Property Damage Only accidents;
<br /> I = The number of Injury accidents; and
<br /> F = The number of Fatal accidents
<br /> These weights are based upon the relative costs of each type of accident as estimated by the
<br /> National Safety Council
<br /> ( S
<br /> Eight mite Road Specipc Plan - Final Report age
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