An Urban Public Transport Resilience Assessment Methodology Based on a Two-Carbon Context

In 2020, China has proposed “peak carbon” and “carbon neutral” targets, of which active guidance for low-carbon travel will be crucial. Urban public transportation has the advantages of high capacity and high intensification, and its per capita energy consumption is extremely low compared with that of small cars. Therefore, the proportion of people traveling by public transportation in a city will directly affect the overall traffic resilience level of the city. In this regard, this paper takes Wuhan City, Hubei Province as an example, and through an extensive survey of residents’ travel characteristics, we count the threshold of residents’ willingness to still choose public transportation when faced with the phenomenon of connections, detours and transfers in public transportation. The total motorized trips were classified into four modes, including active public transportation mode, easy to replace the car mode, passive public transportation mode and not easy to replace the car mode. By fitting the relationship curves between their thresholds and the proportion of each type of travel mode, the corresponding assessment system of urban public transportation resilience is established, and finally the key nodes in the curves are identified according to the fitting results. And accordingly, the overall public transportation resilience characteristics of the city and the distribution of public transportation resilience in each region within the city are analyzed.