Abstract
Modifying the existing two-way street into a one-way street can alleviate the traffic congestion in a megacity and has the characteristics of economy saving, convenience, and quickness. However, at present, the setting of one-way street in China is mostly determined by human experience and lack of scientific basis. In this context, a one-way street network planning model is established in this paper. According to this model, the optimal method of adding a one-way street on the existing traffic network is found, solved by genetic algorithm. The abstract things are quantified, and some feasible, specific, efficient implementation steps to design a one-way street network are provided for the traffic control department. In addition, taking the traffic in the core area of Tongzhou New City as an example, this paper uses the one-way street planning model to construct the actual street network model and the one-way street network model in the core area of the Tongzhou New City and compares their simulation results. The results show that using the one-way street planning model to modify part of the two-way street into a one-way street in the core area of the Tongzhou New City can indeed improve the traffic operation of the area.
Highlights
With the development of society and economy, the number of cars in domestic cities continues to grow, and the traffic congestion index in major cities continues to rise
Taking the core area of Tongzhou New City in Beijing as an example, this paper verifies the model, uses the simulated annealing algorithm to select the parameters of the genetic algorithm (GA), substitutes this parameter to solve the one-way street network planning model
The simulation results show that the improved one-way street network planning scheme is better than the actual street network and the general one-way street network
Summary
With the development of society and economy, the number of cars in domestic cities continues to grow, and the traffic congestion index in major cities continues to rise. Using the proposed one-way street network planning model and improved GA, this paper designs a one-way street network in the core area of the Tongzhou New City in Beijing.
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