Vulnerability Study of Urban River-Crossing Passages Considering the Impact of Disruption on Travel

Current research lacks focus on the vulnerability of urban river-crossing passages related to the impact of disruptions on travel. We propose a method to assess their vulnerability and impact areas by evaluating vehicle detour degrees and public transport substitution effects during possible interruptions. Applied to Wuhan, China, known for its water and bridges, the study reveals significant variations in vulnerability among different river-crossing passages. Passages in outer urban areas are more vulnerable than those in core areas, with larger impact zones and higher impact degrees. Additionally, the vulnerability-affected areas display a strip distribution, and it is harder for outer-area residents to switch from driving to public transport during interruptions. The study’s methods and findings offer valuable references for sustainable river-crossing transportation planning in riverine cities.