Abstract
With the accelerating development of urbanization in China, the increasing traffic demand and large scale gated communities have aggravated urban traffic congestion. This paper studies the impact of communities opening on road network structure and the surrounding road capacity. Firstly, we select four indicators, namely average speed, vehicle flow, average delay time, and queue length, to measure traffic capacity. Secondly, we establish the Wiedemann car-following model, then use VISSIM software to simulate the traffic conditions of surrounding roads of communities. Finally, we take Shenzhen as an example to simulate and compare the four kinds of gated communities, axis, centripetal and intensive layout, and we also analyze the feasibility of opening communities.
Highlights
With the expansion of Chinese cities scale, gated communities have become a major factor hindering the development of urban road traffic
The block layout refers to the residential area divided by blocks, that is, some residential buildings get together, leaving a corresponding road between each block
We assume the total volume of traffic entering the area was 2.67 units/S; the traffic flow detectors and average speed detectors are placed on the main roads around the community
Summary
With the expansion of Chinese cities scale, gated communities have become a major factor hindering the development of urban road traffic. The question of whether or not gated communities need to be opened has attracted widespread attention from social public. It is a focal point for solving the problem of urban traffic congestion.
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