基于交通仿真的拓宽交叉口服务通行能力研究_英文_.pdf

Journal of Southeast University ( English Edition) Vol. 19 No. 4 Dec. 2 3 ISSN 1 3 7985 Research on service capacity of widened intersection based on traffic simulation Pei Yulong Cheng Guozhu ( School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 15 9 , China) Abstract: Delay analysis method is adopted to study the service capacity of a widened intersection. Traffic simulation software VISSIM is used for microscopic simulation of a widened intersection so as to obtain a delay curve. The delay-volume model of a widened intersection is established based on traffic simulation. The suggested value of basic service capacity of the widened left-turn lane is given along with how to determine correction factors and practical service capacity. Key words: traffic simulation; widened intersection; service capacity; average delay Capacity is a critical parameter in the signal simulating running behaviors, queuing and delay of timing of intersection and road design. The relative intersections through a numerical value calculation and arithmetic has been studied before. However, there is logical test. Finally the delay-traffic volume curve is little research on the calculation of capacity of a formed. widened intersection. It is necessary to contrast A computer simulation method is adoptedto obtain existing calculation methods and find a point of the relation curve between the average delay and traffic reference. After the approach is widened, the delay at volume of a widened intersection and service capacity the intersection will change so that the service capacity corresponding to each service level of the