Abstract
With the rapid increase of high speed rail (HSR) network and air travel network in China, the intercity accessibility is reshaped. This study aims to measure the intercity accessibility by considering the two modes. Based on the current networks, timetable and socioeconomic data, this study utilizes connectivity, cumulative opportunity accessibility and potential accessibility to calculate intercity accessibility in the network consisting of 36 major cities in China. Furthermore, the relative and weighted average intercity accessibility of the two modes are obtained to provide a comparison and overall evaluation. The results indicated that the selected indicators are effective to evaluate the accessibility from different perspectives. The intercity accessibility shows different spatial distributions in HSR and air travel. Besides, the air travel network has higher equity than the HSR network in all accessibility measures. Furthermore, it is found that the correlation between the potential accessibility and economic development is stronger than that of others. This study can provide some advices for the further development of the HSR and air travel.
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