As of 2024, pedestrian and bicycle LOS for interchanges is not included in the HCM 7th Edition. Pedestrian control delay can be evaluated at individual signalized intersections, and pedestrian crossing delay can be evaluated at unsignalized intersections. The quality of service of pedestrian and bicyclists along the arterial of an interchange can be approximated using HCM’s Urban Street Facilities methodologies. CAP-X evaluates the level of pedestrian and bicycle accommodations at intersection and interchange types. Inputs include number of pedestrian crossings, number of lanes, and vehicle speeds at each crossing. CPA-X also provides a similar assessment of bicycle accommodations to compare alternative intersections for bicycle friendliness. The suitability of each intersection alternative for pedestrians and bicyclists is assessed with an emphasis on convenience and accessibility.

NCHRP 948: Guide for Pedestrian and Bicyclist Safety at Alternative and Other Intersections and Interchanges provides additional guidance on accommodating pedestrians and bicyclists at diverging diamond interchanges (DDI). See

Chapter 14

for more information on multimodal accommodations and analyses.