Speed Limit Analysis for Street in Residential Block Based on Minimum Network Costs

摘要

With the implementation of government's new guideline on block system, the gated communities will be gradually opened. However, the entrance of a large number of social vehicles into the residential district produces traffic problems such as environmental problems and noise problems. This study proposed a before-after analysis of speed limit for streets in residential block. Traveler time value model, automobile exhaust treatment cost model and traffic noise prevention cost model are considered to minimize the general network costs, and the best speed limit is obtained. Taking the Liaohe district in Harbin as an example, 15 is the initial value and 5 is the interval value, then the five values are 15, 20, 25, 30, 35. The daily total costs of the study area are 298.99, 309.42,324.46, 326.27, 350.87 yuan correspondingly. 15 is the corresponding value of the minimum total cost. Therefore, it can be set as the speed limit.