Fleet identification method on arterial road considering merging traffic flow
A discrimination method and arterial technology, applied in the traffic control system of road vehicles, traffic flow detection, instruments, etc.
Active Publication Date: 2019-12-24
JILIN UNIV
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to overcome the problem that the existing vehicle fleet discrimination model does not consider the influence of branch road merging traffic flow on the discrete characteristics of arterial traffic flow, and provides a method for judging main road fleet considering merging traffic flow
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Embodiment
[0221] In order to verify the effect of the present invention, on July 3 and 4, 2016, at the two time periods of 11:00-13:00 and 14:30-16:30 respectively, the intersection of Comrade Street and East Zhonghua Road in Changchun City Take a video with the intersection between Tongzhi Street and Jiefang Road, and complete the following experiment.
[0222] refer to Figure 11 , the experimental road section is 345m long, with two-way four-lane north-south; on the road section from north to south, 85m away from the upstream is a two-way single-lane branch road - Liutiao Road, and this intersection can only turn right when entering the main road, so the road The environment and conditions are relatively ideal; at the same time, in order to ensure the validity of the collected data, a high-definition camera C1 is set up at the upstream intersection, a high-definition camera C2 is set up at the entrance of the branch road, and a high-definition camera C3 is set up at the 195m downstre...
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The invention discloses an incoming traffic flow-considered trunk motorcade judgment method. In order to overcome the defect that the influence of the traffic flow of a branch on the discrete characteristics of the traffic flow of a trunk is not taken into consideration for an existing motorcade judgment model in the prior art, the invention provides the above method. The incoming traffic flow-considered trunk motorcade judgment method comprises the following steps of 1, determining a critical head time interval; 2, calculating the relation among the traffic flow of the branch, the length of atrunk road section and the critical head time interval; 3, calculating the relation among the traffic flow of the branch, the position of the branch and the critical head time interval; 4 calculatingthe relation among the traffic flow of the branch, the traffic flow of the trunk and the critical head time interval; 5, establishing a motorcade judgment index model: 1) calculating the relation between the critical head time interval and each influence factor; 2) determining a motorcade judgment model: (img file = 'DDA 0001425314000011.TIF 'wi = '1166 'he = '135 ') in the formula, HK is the critical head distance with the unit thereof to be s; q0 is the traffic flow of the trunk with the unit thereof to be veh / h; q1 is the traffic flow of the branch with the unit thereof to be veh / h; a, b,c, d and e are undetermined parameters and are obtained through the prameter calibration according to actual data; 6) determining a motorcade.
Description
technical field [0001] The present invention relates to a judging method of arterial road fleets in the field of traffic control, more precisely, the invention relates to a judging method of arterial road fleets considering merging traffic flow. Background technique [0002] Since the discrete characteristics of the fleet must be considered in the research process of the traffic control system, it is particularly necessary to study the influence of the discrete characteristics of the fleet on the traffic control system. At present, my country's economy and urban construction are still developing rapidly, and my country's traffic still shows a relatively mixed phenomenon. Due to the large distance between urban road networks, complex road structures and vehicle composition, and poor traffic awareness of citizens, etc. Factors have a great impact on the dispersion of fleets on urban roads. Therefore, it is particularly important to study and analyze the influence of branch roa...
Claims
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IPC IPC(8): G08G1/01G08G1/08
CPCG08G1/0145G08G1/08
Inventor 宋现敏李志慧高雨虹曲昭伟魏巍陶鹏飞李达修
Owner JILIN UNIV