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• • Draft Supplemental Environmental Impact Report Page IV.B-4 • Forward Inc. Landfill 2018 Expansion Project Public Transit • Transit service in the general vicinity of the Forward Landfill is provided by the San Joaquin • County Regional Transit District (RTD). RTD provides service between Stockton and the • airport,but the nearest route is at the Route 99/Arch Road interchange. No RTD or other • transit lines extend into the study area. • Intersection Operations Level of Service Concept • The operating conditions of intersections experienced by motorists are described as "levels of • service" (LOS). Level of service is based on several factors, including: • • traffic volumes, • • intersection lane configurations, • • design and type of traffic control, • . speed and travel time, • • traffic interruptions, • • freedom to maneuver, and • • driving comfort and convenience. • Levels of service may be expressed qualitatively with letters "A" through "F" from best to • worst, which cover the entire range of traffic operations that might occur. Levels of service A • through D generally represent traffic volumes at less than roadway capacity, while LOS E • represents traffic volumes at or near roadway capacity, and LOS F represents over-capacity or • forced flow conditions. • Two sets of LOS calculation methods were used for intersection capacity analysis in the study; • one for signalized intersections and the other for the non-signalized intersections. For • signalized intersections, traffic LOS is determined based on the average delay per vehicle for the entire intersection as a whole. For the non-signalized intersections, traffic LOS is determined • based on the average vehicle delay for approaches controlled by stop signs or yield signs at minor streets. Through traffic movements on major street approaches were evaluated but are • not the determining factor intersection LOS. • The study methodology was selected by PHA based on input from both the City of Stockton • and San Joaquin County staff. Generally, this study follows County Traffic Study Guidelines • (San Joaquin County, 2008),but because the project is within the City of Stockton's sphere of • influence, a 2035 horizon year for cumulative analysis was used per City guidelines. Tables • IV.13-1 and IV.13-2 provide a brief description of LOS for each category. • • • • • •