Research Of High-speed Rail’s Influence On City Market Potential

City market potential shows the potential demand scale of products and services in a certain city, which was considered as the weighted income of all the potential market, where the potential demand scale represents the attraction of products and services in a certain district to other districts, furthermore, the potential demand is provided by the potential market. City market potential denotes the economic correspondence between a city and its surrounding cities, which including the factors of space and time. Therefore, the influence of transportation infrastructure on the market potential can be generated. The opening of high-speed rail will lead to the change of market potential through the compression of the distance among cities in terms of time and space and the wide and quick circulation of resources such as labors, technology and purchase power.In this paper, the influence of high-speed rail on market potential is divided into two parts. The overall influence of high-speed rail on market potential is analyzed from the prospective of travel time and the total income of the urban residents. Researches can be divided into several parts as following:Firstly, the market potential model is established based on 52 cities belong to provinces (direct-controlled municipality) along the Jinghu high-speed rail, the differences of market potential among different cities and its reasons are analyzed, furthermore gray relational analysis grade method is introduced to calculate relation between market potential and total income of the urban residents in the background of ordinary train and high-speed rail respectively.Secondly, the value of market potential based on ordinary train and high-speed rail is given by calculating the travel time of 52 cities belong to provinces (direct-controlled municipality) along the Jinghu high-speed rail. The relationship between the proportion of travel time saved by high-speed rail and the increased proportion of market potential is analyzed. What’s more, the influence of the station’s location, city level, province and the speeding up of high-speed rail are analyzed respectively.Finally, the DID model with concomitant variables is established to analyze the influence of Jinghu high-speed rail on total income of urban residents statistically based on the time series data of 52 cities in the time span between 2004 and 2014, thus the influence of high-speed rail on market potential is assessed.The influence of high-speed rail on market potential is evaluated more accurately in the viewpoint of travel time and total income of the city. In addition, the DID model is applied to the economic influence of high-speed rail which makes the evaluation of the high-speed rail on total income of city much more accurate.