省域公路网交通运行特性调查与分析

Investigation and analysis on traffic operational characteristics of provincial highway network

公路网的交通量、交通构成、运行速度等是交通运行特性的重要指标,也是公路网规划、建设及管理的重要依据。文中以广西壮族自治区省域公路网为例,研究省域公路网交通运行特性。研究表明省域公路网难以适应客货运量快速增长的需求,部分路段已处于四级服务水平,交通拥挤现象逐步扩散。交通构成以拖拉机、大货车及小货车为主,平均运行速度约为60km/h。

Traffic volume, traffic composition and operational speed are the main indexes of the regional highway network as well as the important basis for highway planning, construction and operational management. The traffic operational characteristics of provincial highway network are presented on the case study of Guangxi Province. The results show that provincial highway network can＇t meet the increasing demand of traffic, several segments are in four level of service and traffic jam is spreading continuously. The main traffic flow mainly consists of tractors, large trucks and cars with average operational speed about 60km/h.