Road intersection signal control method and system

A signal control and intersection technology, applied in the field of signal control, can solve problems such as interference, affecting operation stability and reliability, and affecting tram traffic efficiency, and achieve the effect of signal coordination control and optimal configuration

Active Publication Date: 2017-03-08
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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Problems solved by technology

Due to the limited road space conditions in some cities, special tracks for trams are given on the road sections, and trams and other social vehicles are mixed at level intersections, so that trams running at the intersections are disturbed by a large number of random factors , which in turn affects the traffic efficiency of the tram, and becomes the main factor affecting the stability and reliability of the system

Method used

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  • Road intersection signal control method and system
  • Road intersection signal control method and system
  • Road intersection signal control method and system

Examples

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Embodiment

[0069] The signal cycle of intersection I is 60s, and the time of traffic lights of each phase is 30s. The distance from the intersection to the two adjacent stations A and B is both 900m, the normal operating speed of the tram is 36km / h, the maximum speed limit is 60km / h, and the threshold of the full load rate of the tram is C max 120%, the front and rear vehicles should keep a distance of at least 1000m. The central computer stores the planned time for the first downbound train to arrive at Station A as 6:30:00, the planned departure time for 6:31:00, the planned time for arriving at the intersection at 6:32:30, and the first upbound tram to arrive at the intersection The mouth time is 6:33:33.

[0070] The steps to determine the priority by the one-way tram priority coordination algorithm are as follows:

[0071] Step 1: When the tram arrives at station A, the vehicle-mounted GPS positioning system real-time position of the first tram on the line (900m away from the inte...

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Abstract

The invention discloses a signal control method and system for a road intersection, and relates to the technology of signal control. The method comprises the following steps: 1) detecting the position, speed and load factor of a vehicle; 2) judging whether the vehicle arrives at the road intersection during red light of the road intersection or not through the position and speed information of the vehicle: returning to step 1) if the vehicle arrives at the road intersection during red light of the road intersection; and switching to step 3) if the vehicle does not arrive at the road intersection during red light of the road intersection; 3) judging whether a prior passing condition is met or not: returning to step 1) if the prior passing condition is met; switching to step 4) if the prior passing condition is not met; 4) adjusting the time sequence arrangement of signal lamps at the road intersection, and enabling the signal lamps to meet a requirement that the signal lamp send a passing signal when the vehicle arrives. The method improves the overall efficiency of an urban traffic system while achieving the transportation efficiency of tramcars, and achieves the optimized configuration of road resources.

Description

technical field [0001] The invention relates to signal control technology. Background technique [0002] Modern trams have developed rapidly in many large and medium-sized cities because of their good flexibility and adaptability, as well as the advantages of large transport capacity, high service quality, low cost, low energy consumption, and environmental protection. Compared with subways and light rails, trams have flexible right-of-way settings, with semi-independent or exclusive right-of-way. Due to the limited road space conditions in some cities, special tracks for trams are given on the road sections, and trams and other social vehicles are mixed at level intersections, so that trams running at the intersections are disturbed by a large number of random factors , which in turn affects the traffic efficiency of the tram, and becomes the main factor affecting the stability and reliability of the system. Therefore, it is of great practical significance to study the si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/087
Inventor 姜梅张杰亮余颜丽易立富
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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