关键词: 交通运输工程, 智能交通系统, 道路网动态划分, R-Q型因子分析法, 交通流时空特性, 广义空间距离

Abstract:

A road network dynamic splitting method was proposed based on the timespace characteristic of traffic flow. A general space distance model was built based on the space characteristic of the road network to measure the distance between the road sections. The RQ factor analysis method was introduced to split the road network in space according to the general space distance between the road sections. Taking the realtimely acquired traffic flow information as the input, the road network dynamic splitting was realized based on the time characteristic of traffic flow. A case analysis was performed for a urban highspeed road network, the splitting results showed that these is strong similarity between the traffic flows of sections of subroad network.

Key words: engineering of communications and transportation, intelligent transportation systems, road network dynamic splitting, R-Q factor analysis method, time-space characteristic of traffic flow, general space distance