High-speed rail impact on urban economic growth -Based on grey prediction model

摘要

With the rapid development of high-speed railways, China has entered the era of high-speed rail. High-speed railways inject new impetus into the economic development of the city and enable the economy to achieve a new leap-forward development. This article takes Changsha City as an example to evaluate high-speed railways using comparative evaluation methods. It is assumed that under the conditions of "having high-speed rail" and "without high-speed rail" the impact of high-speed railway on regional economic development will be discussed by the regression model and gray predict the GM(1,1) model. The results show that the opening of high-speed rail has a pulling effect on urban economic growth and the contribution rate to economic growth shows a tendency of increasing first and then decreasing. Particularly, the contribution of high-speed rail to the economic growth in the first few years is swift and violent, with significant impact, then slows down.