Traffic analysis has traditionally focused on motorized travel, but transportation agencies increasingly need to assess conditions for people walking, bicycling, and using mobility or micromobility devices. Although multimodal analysis methods are available, limited information exists on how state departments of transportation (DOTs) incorporate nonmotorized traffic analysis into routine planning, design, and operations.

NCHRP Synthesis 671: Traffic Analysis Practices for Nonmotorized Modes, produced by TRB’s National Cooperative Highway Research Program, includes information on how state DOTs define and analyze nonmotorized modes, including pedestrians, bicyclists, mobility device users, and micromobility; the tools, data sources, and performance measures used in practice; and the institutional, technical, and operational challenges associated with integrating nonmotorized modes into planning, design, and operations. The report also documents emerging approaches such as level of traffic stress, multimodal level-of-service methods, statewide count programs, and the use of GIS-based and data-driven analytical tools.