Method for confirming set positions of speed limit signs and size of speed limit during road construction

A speed limit sign, road construction technology, applied in road signs, roads, roads, etc., can solve the problem of inability to accurately characterize the relationship between different driving vehicles and the characteristics of driving behavior.

Active Publication Date: 2012-06-20
TIANJIN MUNICIPAL ENG DESIGN & RES INST
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Problems solved by technology

[0006] According to the above-mentioned analysis of the existing research techniques, it can be seen that the cognitive psychology, ergonomics, traffic flow theory, car-following theory, overtaking theory, safety sight distance, traffic microscopic simulation and other technologies for

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  • Method for confirming set positions of speed limit signs and size of speed limit during road construction
  • Method for confirming set positions of speed limit signs and size of speed limit during road construction
  • Method for confirming set positions of speed limit signs and size of speed limit during road construction

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Embodiment Construction

[0039] The present invention uses the SOAR cognitive framework for modeling, and designs the driver agent in the road construction operation area, including the agent's working memory, long-term memory, procedural operator selection method and learning mechanism. Several simulations have been carried out under these conditions to verify its effectiveness in optimizing the settings of speed limit signs.

[0040] The invention uses the SOAR cognitive framework to describe the traffic behavior of the driver of the driving vehicle in the construction operation area in detail, describes the complex traffic behavior of the driving vehicle in the construction operation area, and evaluates the construction operation area in combination with the traffic conditions of the regional road network and the distribution of construction operations The impact of the layout scheme on the traffic capacity of the road network, and then a reasonable value of the length of the upstream transition zon...

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Abstract

The invention belongs to the technical field of road design, and relates to a method for confirming set positions of speed limit signs and size of speed limit during road construction, and the method comprises the following steps of: (1) designing a working memory structure of a driver SOAR intellectual body; (2) designing an initial long-term memory rule, and building a long-term memory rule base of the driver SOAR intellectual body; (3) building a decision period of the driver SOAR intellectual body; and (4) setting the set positions of the different speed limit signs, the size of speed limit, and different road loading coefficients so as to perform simulation, judging traffic conflict and severity degree according to overlapping degree of road cells which are occupied by a current vehicle and adjoining vehicles, selecting a simulation condition with the lower traffic conflict and severity degree, and obtaining the set positions of the speed limit signs and the size of the speed limit within a proper construction operation area under different traffic conditions. The method can be used for more accurately reflecting the influence of the set positions of the speed limit signs and the size of the speed limit on the traffic capacity during road construction, thus providing the method for setting the speed limit signs during road construction.

Description

technical field [0001] The invention belongs to the technical field of road design, and relates to a method for determining the setting position and speed limit size of road construction speed limit signs. Background technique [0002] Road construction is an essential road maintenance operation during the construction and use of urban road infrastructure. Due to changes in the traffic driving environment, reduction of road traffic efficiency, and impact on residents' travel and life during road construction operations, urban road construction operations have attracted the attention of major cities, and corresponding technical regulations have been compiled. The research literature on road construction operations is relatively large. Many, mainly based on road traffic safety and road traffic efficiency, using cognitive psychology, ergonomics, traffic flow theory, car-following theory, overtaking theory, safety sight distance, traffic micro-simulation and other technologies t...

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Application Information

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IPC IPC(8): E01F9/00E01C1/00E01F9/608
Inventor 郑利白子建王晓华钟石泉柯水平赵巍王海燕邢锦张磊贺海姚晓春张友明练象平曾伟金学松张占领刘炤伟魏伟段绪斌李明剑葛娟冯炜周骊巍王志华张洋狄升贯张国梁代茂华
Owner TIANJIN MUNICIPAL ENG DESIGN & RES INST
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