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95 Right-Turn Channelization is a design feature. To estimate the variables required by the LOS models, Block Length is a design feature the analyst first collects data on facility design, facility Signal Cycle Length is a facility control feature. It is influ- control, facility maintenance, transit service, and the enced by the facility design, auto and transit volumes, and volume for each mode. The analyst uses these data to esti- the pedestrian volumes. mate various modal performance characteristics (auto Signal Green Time is a facility control feature. It is influ- speed, bus speed, bus wait, bus access, bicycle-pedestrian enced by the facility design, auto and transit volumes, and conflicts if a shared facility is present, and pedestrian the pedestrian volumes. density). Once the modal performance characteristics are known, then the methods of NCHRP 3-70 are used to esti- Interactions Among Modal LOS Results mate auto LOS, transit LOS, bicycle LOS, and pedestrian Exhibit 100 shows the major interactions among the input LOS for the urban street. The bicycle-pedestrian conflict variable types, the modal LOS models, and the modal LOS LOS is estimated using procedures in Chapters 18 and 19 of model results. the HCM. Exhibit 100. LOS Model Interactions. Facility Facility Facility Transit Mode Design Control Maint. Service Volumes Lane Geometry Bus Boarding Pass. Auto/Trucks Bus Stops Pavement Bus Headway Signal Timing Bike Lane Pedestrians Speed Limit Sidewalk Bikes Trees Bike-Ped Conflicts Left Turn Lane Auto Bus Bus Bus Ped Speed Speed Wait Access Density Stops Delay Auto LOS Transit LOS Bike LOS Ped LOS