Method for setting roadside speed limit signs on ordinary road

Abstract

The invention discloses a method for setting roadside speed limit signs on an ordinary road, which relates to a method for determining setting positions, repeat setting times and intervals of the speed limit signs and releasing the setting positions of the speed limit signs in a traffic environment of the ordinary road. The method comprises the following specific steps of: acquiring relevant parameters of the ordinary road and a traffic condition and obtaining vision and cognitive characteristic parameters of a driver; calculating the maximum preposed distance and the minimum preposed distance of the roadside speed limit signs and determining the optimal setting positions of the roadside speed limit signs; calculating the shielding rate of a large vehicle on an outside traffic lane for the driver of a small vehicle on an inside traffic lane to sea and recognize the roadside speed limit signs; determining the repeat setting times of the roadside speed limit signs; calculating the minimum and maximum intervals for the repeat setting of the roadside speed limit signs and determining the optimal interval for the repeat setting of the roadside speed limit signs; and finally, determining the setting position for releasing the speed limit signs. The method for setting the roadside speed limit signs on the ordinary road can achieve the purposes of improving the setting effectiveness of the speed limit signs on the ordinary road and the speed management efficiency on the ordinary road. The method is simple and practical and has strong operability and effectiveness.

Description

technical field [0001] The invention relates to determining the optimal setting position, repeated setting times and the optimal setting of the speed limit sign on the roadside according to the driver's visual and cognitive characteristic parameters, road characteristic parameters and traffic characteristic parameters in the ordinary road traffic environment. The distance and the method of removing the setting position of the speed limit sign are used to achieve the purpose of improving the effectiveness of setting the speed limit sign on ordinary roads and improving the speed management efficiency of ordinary roads. It belongs to the field of road traffic safety. Background technique [0002] The road traffic in our country is seriously mixed, and the speed of the vehicle is more discrete, which seriously affects the road traffic safety. According to the analysis of the causes of road traffic accidents, it can be found that speeding, high-speed driving, and speed dispersio...

AI Technical Summary

Problems solved by technology

However, the standard "Guidelines for the Setting of Highway Traffic Signs and Markings", which is currently the basis for the setting of speed limit signs on ordinary roads in my country, fails to address traffic characteristics such as the driver's visual and cognitive characteristic parameters, road characteristic parameters, and the proportion of large vehicles on ordinary roads. However, a reasonable method for determining the best setting position of the roadside speed limit sign, the optimal distance between the number of repeated settings and the repeated setting, and the setting position of the speed limit sign is proposed, so that the setting position of the roadside speed limit sign cannot be applied to different The road conditions, the number of times the speed limit signs should be repeated and the optimal spacing for repeated settings cannot be quantitatively determined, and the improper setting position of the speed limit signs will cause the vehicle to accelerate before the end of the speed limit section. The actual effect of speed signs is not good, and the phenomenon of speeding and high-speed driving is serious

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