Method for setting road section information display board based on improved discrete model

Abstract

The invention provides a method for setting a road section information display board based on an improved discrete model, and is used for overcoming the problem that the traffic flow density and driving speed of the highway are difficult to control by the information of the existing information display board effectively. In the method, according to the a macro traffic flow discrete model with improved speed, a road section condition controllability discriminant is defined, the vehicle control scheme at the ramp exit and entry is regulated, the information display board instructs the vehicle driving speed to change the equivalent speed in the road section condition controllability discriminant, the density and speed obtained by the forecasting by the road section condition controllability discriminant under the condition of actual road section traffic state meet the required density and speed limiting conditions, and the information of the information display board displays the vehicle control scheme at the ramp exit and entry and the required vehicle running speed.

Description

technical field [0001] The invention relates to a method for setting a road traffic information display board, in particular to a method for setting a road section information display board based on an improved discrete model. Background technique [0002] Transportation is extremely important to the development of the national economy and has always been the key construction content of the country. In recent years, my country's highways, railways, water transport, urban transportation and civil aviation have all developed by leaps and bounds, and a transportation network framework consisting of five modes of transportation, railways, highways, water transport, air transport and pipelines, has initially formed. Many high-grade and expressways have been laid, initially forming a road network radiating across the country composed of national highways, high-grade highways, and local highways. At the same time, urban road construction has also developed greatly. The constructio...

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Problems solved by technology

[0004] In order to overcome the problem that the existing information display board information is difficult to effectively control the traffic flow density and driving speed of the expressway, the present invention provides a method for setting the road section information display board based on the improved discrete model. The macro-traffic flow discrete model defines the controllability discriminant of road conditions, adjusts the ramp exit and entrance vehicle control schemes, and the information display board indicates the vehicle speed to change the sum of the equivalent speed in the controllability discriminant of road conditions, so that the actual road traffic Under the situation, the density and speed predicted by the controllability discriminant of road section conditions meet the required density and speed limit conditions, and the information display board information shows the ramp exit and entrance vehicle control scheme and the required vehicle speed

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