Analysis of the effect of the light rail on the airport passengers transfer

For the large hub airports which are usually located far away from city center, the convenience of passenger transfer between city and airport is not only related to service quality of airport, but also to the important aspect of city traffic efficiency. This paper uses Beijing capital international airport as an example. It quantitatively analyzes the behavior of transfer of the airport passengers before and after the airport light rail bas built. First, twice airport passenger questionnaires have been used to collect the random samples of passenger transfer characteristic. Second, a support vector machine and Kullback-Leibler divergence have been used to analyze the overall changes of the passenger transfer samples and compare the distribution of the passengers transfer time before and after the airport light rail has been built, respectively. The results indicate that, the average departure time has been significantly shortened by the share of the light rail. But the potential of the light rail is still not fully brought into play, and there still has large improvement space for optimization of the Beijing capital international airport transfer.