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Method for calculating intersection signal time distribution based no vehicle stop line passing time

A technology of signal light timing and stop line, which is applied to control traffic signals and other directions, and can solve the problems of signal light timing information difficulties and other problems

Active Publication Date: 2016-07-27
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0004] In the current technology, the signal timing is generally calculated and evaluated by using a fixed-position detector (coil). This method is not suitable for large-scale areas, and can only obtain signal light timing information in a few or small areas. Want to It is difficult to obtain signal timing information in a large area or an entire city in this way

Method used

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  • Method for calculating intersection signal time distribution based no vehicle stop line passing time
  • Method for calculating intersection signal time distribution based no vehicle stop line passing time
  • Method for calculating intersection signal time distribution based no vehicle stop line passing time

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Embodiment Construction

[0043] The purpose of the present invention is to design a data analysis method suitable for calculating the signal timing scheme in a large area based on traffic mobile Internet data, which specifically includes the following steps:

[0044] S01: Sampling the trajectory data of vehicles passing through the intersection;

[0045] S02: Calculate the i-th vehicle at the sampling point and average travel speed between in is the last sampling point before the vehicle passes the intersection stop line, is the first sampling point after passing the intersection stop line;

[0046] S03: According to the average driving speed Calculate the time pt for the vehicle to pass the stop line i ;

[0047] S04: Calculate the headway tt of the signal cycle according to the time when the vehicle passes the stop line in two adjacent signal cycles k , signal period headway tt k Indicates the headway between two vehicles that pass the same stop line sequentially under two adjacent si...

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Abstract

A method for calculating intersection signal time distribution based no vehicle stop line passing time includes: sampling trajectory data of a vehicle passing by an intersection, calculating a time of the vehicle passing by a stop line, calculating a signal cycle time headway according to vehicle stop line passing times under adjacent two signal cycles, calculating red light duration of a corresponding intersection according to the signal cycle time headway to obtain a signal time distribution for the intersection. The method enables data mining to be effectively implanted under existing computer processing capacity, and more accurate and scientific recommendations are provided for people's smart trip and construction of a smart city.

Description

technical field [0001] The invention relates to a data processing technology, a road state analysis technology and a method of model construction, in particular to a method for estimating a signal timing scheme at an urban intersection by using mobile Internet data. Background technique [0002] Road traffic signal lights are an important tool to strengthen road traffic management, reduce traffic accidents, improve road use efficiency, and improve traffic conditions. They are widely used at intersections such as crosses and T-shaped intersections, and are controlled by road traffic signal controllers. To guide vehicles and pedestrians to pass safely and orderly. [0003] A reasonable signal light timing scheme can improve the traffic capacity of the intersection. At present, most of the research on signal light timing is to optimize the signal light timing scheme. However, the timing information of urban signal lights also has certain application value. Today, the accelera...

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Application Information

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IPC IPC(8): G08G1/08
CPCG08G1/08
Inventor 谭暨元董路熙李萌姜涵王力
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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