Path distribution method and device capable of discriminating vehicle turning direction

Abstract

The invention discloses a path distribution method and device capable of discriminating a vehicle turning direction. The method comprises the steps that a start node and a terminal node are determined in an abstract road network topological graph; as for any one directional arc formed by two adjacent nodes in the abstract road network topological graph, the sum of the work factor of the directional arc and prediction travel time of the directional arc is determined to be dynamic impedance of the directional arc, wherein the work factor of the directional arc is determined by the distance between the primary node of the directional arc and the terminal node and a speed threshold value, and prediction travel time of the directional arc is determined according to travel time of the directional arc acquired in previous M days and travel time of the directional arc acquired on the day; and a path of the minimum impedance of all the possible paths from the start node to the terminal node is determined to be the optimal path between the start node and the terminal node.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic control, in particular to a route allocation method and device for distinguishing vehicle steering. Background technique [0002] Excessive growth in traffic demand has led to increasing traffic congestion and more complex traffic conditions. The traditional method of relying on experience travel can no longer bring convenience to drivers. In this case, route allocation technology has emerged as the times require. The route allocation technology can output reference routes for drivers based on the starting point information and end point information provided by the driver, so as to assist the driver to avoid congested road sections and travel smoothly. [0003] In the prior art, when route allocation is performed, one or several routes with relatively short distances from the starting point to the end point are mainly used as driving routes, so as to complete the route allocation. Thi...

AI Technical Summary

Problems solved by technology

This route allocation method does not consider the dynamics of road segment impedance changing with travel time, and is essentially a static route allocation algorithm.

In addition, due to the influence of signal control schemes and driving conditions, the impedance of different turning sections is usually different, or even very different

Therefore, in practical applications, existing route assignment methods generally have problems such as poor practical application results of route assignment results, and low satisfaction of travelers with route assignment results.

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