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Signal light linkage control system and method of express way ramp outlet and adjacent intersection in city

A technology for intersections and signal lights, which is applied in the traffic control system of road vehicles, traffic control systems, and traffic signal control to achieve the effects of improving traffic delivery capacity, preventing traffic accidents, and improving safety

Inactive Publication Date: 2015-04-15
隋亚刚 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this technology, only consideration is given to controlling the traffic flow entering the expressway at the entrance ramp, which ensures that when the exit ramp of the expressway is blocked, the vehicles at the downstream ramp control its entry, so as to alleviate the traffic pressure on the expressway; But above-mentioned method can't really go to solve the traffic jam problem at aforementioned exit ramp place

Method used

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  • Signal light linkage control system and method of express way ramp outlet and adjacent intersection in city
  • Signal light linkage control system and method of express way ramp outlet and adjacent intersection in city
  • Signal light linkage control system and method of express way ramp outlet and adjacent intersection in city

Examples

Experimental program
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Effect test

Embodiment 1

[0045] The urban expressway ramp exit and adjacent intersection signal light linkage control system according to the present invention, see figure 2 As shown, the system includes a traffic flow detection unit arranged at the exit ramp of the expressway, and the setting position of the traffic flow detection unit is shown in figure 1 Shown; The traffic flow detection unit is made up of a data processing board and eight detector boards connected to the bus of the data processing board, and the hardware of the detector adopts Altera Cyclone series FPGA EP1C6 as processor, this implementation The traffic flow detection unit in the example uses a coil detector; the traffic flow detection unit arranged at the exit ramp of the expressway described in this embodiment is used to detect the traffic flow at the exit ramp of the expressway, and obtains the vehicle flow rate at the exit ramp of the expressway. traffic data.

[0046] The urban expressway ramp exit and adjacent intersecti...

Embodiment 2

[0057] image 3 Shown is another embodiment of the linkage control system of the urban expressway ramp exit and the adjacent intersection signal light linkage control system according to the present invention, and the linkage control system includes:

[0058] The traffic flow detection unit that is respectively arranged at the exit ramp of the expressway and the upstream auxiliary road of the exit ramp of the expressway, the hardware configuration of the traffic flow detection unit is the same as the traffic flow detection unit described in Embodiment 1; The signal light at the exit ramp of the expressway, and the signal light at the intersection adjacent to the exit ramp of the expressway arranged downstream of the exit ramp of the expressway;

[0059] In this embodiment, the signal lamp drive system is divided into an expressway ramp exit signal lamp drive unit and an intersection signal lamp drive unit, the expressway ramp exit signal lamp drive unit controls the expressway...

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Abstract

The invention relates to a signal light linkage control system of an express way ramp outlet and an adjacent intersection in a city. The linkage control system is provided with a linkage control unit which is used for carrying out linkage controlling on an express way ramp outlet signal light at the connecting part of the express way outlet ramp and a side road as well as an intersection signal light arranged on the down stream of the express way outlet ramp adjacent to the express way outlet ramp according to the traffic flow data of the express outlet ramp, thus the traffic jam at the express way outlet ramp is effectively relieved. In addition, the linkage control system guarantees that the travelling of vehicles on the side road on the upper stream of the outlet ramp is not limited by the signal light through controlling the signal light on the side road on the upper stream of the outlet ramp under the condition that the outlet ramp has no traffic jams, thereby the traffic transportation capacity of the side road is effectively improved.

Description

technical field [0001] The invention relates to the field of intelligent traffic control, in particular to a system which can perform linkage control on signal lights according to the traffic flow of an urban expressway exit ramp and an adjacent intersection. Background technique [0002] The urban expressway is the main artery of the urban road network. It satisfies the sustainable development of the city with its fast, connected and large-capacity traffic functions. However, in recent years, the traffic congestion problem of the expressway has become increasingly prominent, which has seriously affected the traffic efficiency of the urban expressway. . [0003] The problem of the above-mentioned expressway has a very obvious traffic situation, that is, during the peak traffic period, the traffic density of the main road itself is already quite high, so at the exit ramp of the main road expressway, there will be a large number of vehicles that need to go from the expressway...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/081G08G1/08
Inventor 隋亚刚李志恒苏岳龙尹胜超李力
Owner 隋亚刚
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