Research On Unblocked Urban Road And Solution In Planning In The Motor Vehicle Era

City transportation is one of the most important functions in a city. With the process of urbanization and mobilization and the development of national auto mobilization, the cities in our country are facing increasingly serious traffic problems. The leading cause of the traffic congestion is the unbalanced conflict between roadway facilities supply and traffic demand. As the main carrier of urban traffic, urban roadway system's limitation on traffic is the important aspect of cause of problem. Reinforcing the construction of urban roadway energetically and renew the roadway system are the necessary selection on the condition of weak urban infrastructure and more and more serious ' supply and demand' conflict.On the basis of learning about the present situation of our country's city transportation and analyzing the present problems existed in the roadway system of the cities in China, the Paper puts forward a Proposal of the renewal and reconstruction of roadway system. To evaluate and improve urban road network, it is an effective way that discussing urban road network structure from an overall view and analyzing urban road transportation function basing on road network structure. Through improving road network inner structure, we can increase its outer function, and remit urban transportation conflict of supply and need. The essence of which is constructing roadway system fit for modern urban traffic vehicle moving characteristic.