Abstract:Recently China is experiencing an era of rapid expressway construction, while the expressway maintenance and management can barely meet the needs of expressway system development. Based on the expressway data collected between 1995 and 2009 in Tianjin, a time series model of autoregressive moving average (ARMA) is applied to predict the capital needs of expressway maintenance and management. Contrary to the expected results, the empirical study shows that the increase of the expressway maintenance and management capital will remain stable in a long period of time and the unit cost of expressway maintenance and management does not grow higher with the increase of the number of years after the expressway opens to the traffic. The study shows that the number of years of effective usage of the expressway system is increased due to the improvement of the expressway construction technology.