Travel for the purpose of obtaining medical services is called medical travel. The medical travel mode of county residents will be affected by local transportation and medical facilities allocation and other factors, thus showing different travel carbon emission characteristics. Potential model often uses travel distance as impedance in spatial accessibility analysis. In order to study the difference of travel carbon emissions in different regions of the county to obtain certain medical service resources, this paper converts the traditional travel impedance from distance to travel carbon emission by using the traffic mode structure of residents' medical travel and the carbon emission coefficient of each mode. On this basis, the improved potential model is used to measure the spatial accessibility of medical facilities in different residential areas of Qingcheng County, Gansu Province. The results of accessibility calculation can reflect the distribution difference of carbon emissions of medical travel in County, and have certain guiding significance for the future low-carbon configuration of facilities.

CICTP