Research on Traffic Bottleneck Characteristic of Urban Road Network Based on Rough Set
Jinxi Liu · Western China Communications Science & Technology · 2014
The traffic bottleneck is a very important factor affecting the urban traffic flow,the road network of Valley-type Cities is limited by the natural terrain,thus its traffic bottleneck effect is more prominent.This article analyzes the characteristics of traffic bottlenecks in Valley-type Cities,selected the repre-sentative static factors affecting the formation of bottlenecks as well as the dynamic factors considering the impact of traffic flow,the knowledge reduction method based on attribute importance in the rough set theory is used for reduction,thus coming out the conclusion that the matching degree and saturation degree of traffic capacity are the important factor affecting the formation of road network bottlenecks in Valley-type Cities,and according to the bottlenecks identification rules,it proposed the measures to improve the road network bottlenecks of Valley-type Cities from the perspective of traffic capacity matching and saturation.