TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 128, Multimodal Level of Service Analysis for Urban Streets: Users Guide explores a set of procedures for predicting traveler perceptions of quality of service and performance measures for urban streets.  Quality of service and performance are considered in terms of the needs of auto drivers, bus passengers, bicyclists, and pedestrians.  The final report on development of the multimodal level of service analysis for unban streets was published by TRB as NCHRP Report 616.