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Expressway construction work zone vehicle speed control hierarchical early warning system

A technology of expressway and vehicle speed control, which is applied to the traffic control system, traffic control system, instrument, etc. of road vehicles, which can solve the problems such as the inability to adjust the signs, and achieve the effect of ensuring traffic efficiency, reducing traffic accident rate, and improving traffic safety

Active Publication Date: 2016-03-16
严格集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention is to solve the problem that the traffic facilities in the existing expressway operation area cannot self-adaptively adjust the signs according to the actual road conditions, and provides a vehicle speed control graded early warning system in the expressway construction work area

Method used

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  • Expressway construction work zone vehicle speed control hierarchical early warning system
  • Expressway construction work zone vehicle speed control hierarchical early warning system
  • Expressway construction work zone vehicle speed control hierarchical early warning system

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specific Embodiment approach 1

[0016] Specific implementation mode one: see figure 1 Describe the present embodiment, the expressway construction operation zone vehicle speed control graded early warning system described in the present embodiment, comprises the vehicle speed acquisition module, the early warning signal output module and the information dissemination module;

[0017] Set the vehicle speed acquisition module at the set distance from the warning area, the warning area, the upstream transition area and the buffer zone respectively. The vehicle speed acquisition module is used to collect the current vehicle information, and feed back the collected current vehicle speed information to the early warning signal output module. The current vehicle information represents the speed signal of the vehicle in the current expressway construction work area;

[0018] The early warning signal output module receives the vehicle speed information sent by the vehicle speed acquisition module, and obtains the max...

specific Embodiment approach 2

[0020] Specific implementation mode two: this implementation mode further explains specific implementation mode one: the warning level information is divided into three levels, according to the maximum speed limit value V i , according to the incremental change of 20km / h, the three grades are: the vehicle speed is greater than V i +40, the warning level is level 1; the vehicle speed is at V i +40 and V i Between +20, the warning level is level 2; the vehicle speed is at V i +20 and V i between, the warning level is level 3; when the vehicle speed is less than V i , the vehicle is running normally.

[0021] In this embodiment, the method for collecting construction road information is: conduct data investigation and analysis on the construction site to obtain the traffic composition (vehicle types and their proportions) in the construction work area and the vehicle speeds of different vehicle types in each area. The vehicle speed is greatly affected by the vehicle type. Un...

specific Embodiment approach 3

[0025] Specific implementation mode three: this implementation mode further explains specific implementation mode two: obtain the maximum speed limit value V i The specific process is:

[0026] Traffic congestion density K in the expressway construction work area j :

[0027] K j = 1000 ( 1 - x ) ( h c + h 0 ) ( h H V - h 0 ) ;

[0028] Among them: x represents the proportion of large vehicles, h 0 Indicates the average interval between vehicles in a single lane, in m, h ...

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Abstract

The invention relates to an expressway construction work zone vehicle speed control hierarchical early warning system and belongs to the road traffic signal control field. The objective of the invention is to solve the problem of the incapability of existing expressway construction work zone traffic facilities to adaptively adjust markers. A vehicle speed acquisition module is arranged at a position which is separated from a warning zone for a set distance, at the warning zone, an upstream transition zone and a buffer zone respectively and is used for acquiring current vehicle speed information and feeding back acquired vehicle speed information to an early warning signal output module; the early warning signal output module receives the vehicle speed information transmitted by the vehicle speed acquisition modules, and obtains maximum vehicle speed through comparison, and compares the maximum vehicle speed with a set early warning degree so as to be obtain early warning hierarchical information, and then, transmits the early warning hierarchical information to an information release module in real time; and the information release module is arranged in the buffer zone and is used for releasing the early warning hierarchical information obtained by the early warning signal output module in real time. The expressway construction work zone vehicle speed control hierarchical early warning system of the invention is use for road traffic signal control.

Description

technical field [0001] The invention belongs to the field of road traffic signal control and relates to a vehicle speed control graded early warning system. Background technique [0002] With the continuous increase of the number of cars in my country and the mileage of highways, engineering tasks such as highway repair and maintenance, reconstruction and expansion are intensified, and the number of highway operation areas is increasing and the distribution is also wide. The safety problems in expressway construction work areas are also becoming more and more obvious, one of which is the speed limit. The problems arising from the speed limit in the construction work area are also becoming more and more prominent. [0003] The speed of vehicles is one of the main factors causing traffic accidents on highways. Due to the coexistence of construction and vehicle traffic during the reconstruction and expansion of expressways, the driving environment is very different from norma...

Claims

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Application Information

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IPC IPC(8): G08G1/0967
CPCG08G1/0967
Inventor 马艳丽史惠敏蒋源于欢
Owner 严格集团股份有限公司
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