Research On Planning Ring Road In Urban Road Network

This text draws lessons from analysis of the domestic and international scholar's impact on city layout and city traffic network and relevant research of setting up the ring road to urban road network, combine urban road network of our country and plan the practical problem presented to build the ring road, have carried on research to the necessity of setting up the ring road of Urban Road System of different scale . At last , author offer proposals for planning ring road in city. Combine the actual conditions of project of our country, point out that it is to limit the city center to set up the most basic purpose of ring road in urban road network. When set up the multi-layer cycle and city center and coincide strongly constantly in big Urban Road System, the ring road is unable to reach the anticipated function while planning . While it is analysed that the multi-ring road influences each other , through assuming the traffic flow is equal to receiving critical proportion η journey time on the adjoin cycle in ideal cases. And then put forward the suggestion making the multi-ring road more easy to cooperate with through an analysis of η. When set up the result and appraise to the ring road , attempt to establish the length of ring road geometry instead of the connection of serving the result. Through competent form a square or round cycle, assume the density of population for the constant, calculate out the ring road and serve coefficient and appraise the cycle and serve the result. Later set up situation of ring road in Beijing and Wuhan examine estimating actually correctly. Point out the limitation of this text and a great deal of problems remained to solve further finally, and set up the ring road and put forward the suggestion to plan urban road network.