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Two-way two-lane highway construction area optimal construction length setting method

A construction area, two-lane technology, applied in instruments, data processing applications, forecasting, etc., can solve problems such as large randomness and affect traffic efficiency, and achieve the effect of reducing traffic congestion, ensuring maximum, and ensuring system benefits

Active Publication Date: 2017-08-01
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0005] Technical problem: In view of the fact that the length of the construction area is often set according to experience when repairing the enclosure of the road, which is relatively random and affects the traffic efficiency, the purpose of the present invention is to provide a two-way two-lane road construction area The optimal construction length setting method, aiming at the lowest total system cost, proposes the optimal construction length setting method for general roads, especially two-way two-lane road construction areas, to improve traffic flow efficiency and reduce traffic flow delays

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  • Two-way two-lane highway construction area optimal construction length setting method
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  • Two-way two-lane highway construction area optimal construction length setting method

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[0046] In conjunction with the accompanying drawings and embodiments, the technical solution of the present invention is described in detail as follows:

[0047] Example: select as figure 2 Shown road construction area is research object, and the present invention uses G312 Ningxiang section to be the research object of invention, construction area total length L=1500m, every hour average delay cost C of every car h =45 yuan / pcu·h, the average maintenance time T per kilometer m = 12h / km, fixed cost E of a single construction area = 1500 yuan, phase switching loss time T L = 3s. Vehicles pass through the construction area at a speed of 40km / h, and record 10 sets of data on the number of vehicles passing through the construction area within one hour, as shown in Table 1 below:

[0048] Table 1 The number of passing vehicles in one hour in the construction area

[0049] 1 2 3 4 5 6 7 8 9 10 lane 1 900 890 895 910 905 1000 800 825 975 901 ...

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Abstract

The invention discloses a two-way two-lane highway construction area optimal construction length setting method. Firstly the traffic data of a construction road are acquired by aiming at the typical two-way two-lane national and provincial highway and county and township roads, including traffic flow arrival rate, speed and saturation flow rate, etc.; and delay cost, average construction time of the road per kilometer, the fixed cost of a single construction area and other parameters are inputted; secondly, total effective green light time of one period is calculated, and the effective green light time is allocated according to the principle of isosaturation; and queue clearance time of the maximum queue length point within the single period and the total vehicle delay within the period are accordingly calculated through combination with the traffic flow fluctuation theory; then the total delay cost of the vehicle and the fixed cost in the construction period are calculated; and finally a calculation model of the optimal construction length of the highway construction area is established. According to the method, the mathematical model is established to quantitatively calculate the optimal construction length of the construction area by using the mode of alternate releasing through signal control so that the traffic flow delay and the total cost can be reduced.

Description

technical field [0001] The invention belongs to the field of highway traffic engineering, relates to the fields of highway traffic construction and highway traffic flow organization, and more specifically relates to a method for setting the optimal construction length of a two-way two-lane highway construction area. Background technique [0002] The two-way two-lane road in the invention mainly refers to national roads, provincial roads, and county and township roads, and yellow dotted lines are used to separate opposite traffic flows in the middle of the road. According to statistics from the Ministry of Transport, by the end of 2016, my country had built 354,800 kilometers of national roads, 313,300 kilometers of provincial roads, 562,100 kilometers of county roads, 1,147,200 kilometers of township roads, and 2,250,500 kilometers of village roads. It has become an important guarantee for maintaining the rapid development of the national economy. (http: / / seafarers.msa.gov....

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G08G1/08
CPCG06Q10/04G06Q10/06375G08G1/08
Inventor 吴伟刘洋林琴龙科军
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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