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Tramcar traction calculation simulation method considering road traffic control influence

A technology of road traffic control and tram, applied in the field of traffic simulation to achieve the effect of improving accuracy

Active Publication Date: 2021-02-26
佛山市城市规划设计研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing tram operation simulation analysis, the tram is generally treated as an extended road vehicle, and its dynamic characteristics and route are not simulated according to the dynamic model of the rail train, that is, the traction calculation.

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  • Tramcar traction calculation simulation method considering road traffic control influence
  • Tramcar traction calculation simulation method considering road traffic control influence
  • Tramcar traction calculation simulation method considering road traffic control influence

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Please refer to figure 1 , figure 2 , image 3 and Figure 4 ,in, figure 1 It is a system structure diagram of the present invention; figure 2 It is the system data relationship diagram of the present invention; image 3 It is a simulation operation flowchart of the present invention; Figure 4 It is a schematic diagram of tram signal control and traction curve.

[0021] The calculation and simulation method of tram traction considering the influence of road traffic control includes the following steps:

[0022] like figure 1 , first establish the real-time communication interface between the traction calculation server and the traffic simulation platform, and between the actual signal control equipment and the traffic simulation platform.

[0023] like figure 2 , and then configure the data interaction mechanism between the traffic ...

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Abstract

The invention provides a tramcar traction calculation simulation method considering road traffic control influence, belongs to the field of traffic simulation, and can solve the problems of traction calculation of a tramcar in a road signal control state and simulation of tramcar control of road signal control equipment in the traction calculation state. The method comprises the following steps: firstly, calculating the acceleration of the tramcar at the beginning of the current step length by a traction calculation module according to the state of a signal lamp and the speed of the tramcar insimulation software; calculating the position and the speed of the tramcar at the beginning of the next step length according to the speed and the acceleration of the tramcar at the current step length, and transmitting triggering information to signal control equipment if a virtual detector in simulation software is triggered by the position change of the tramcar; and finally, enabling the signal control device to calculate the signal lamp state and return the signal lamp state to the traffic simulation software to enter the next step. According to the method, the accuracy of tramcar operation and signal priority control simulation can be improved from the perspective of tramcar dynamic characteristics.

Description

technical field [0001] The invention relates to the field of traffic simulation, in particular to an operation simulation method of a modern tram and a signal priority control simulation method of a modern tram. Background technique [0002] Motor vehicle traffic on urban roads has the characteristics of demand dynamics, vehicle type randomness, and driving behavior diversity. The evaluation of its operating efficiency is generally carried out by queuing theory or stochastic simulation. Modern trams belong to urban rail transit, and their operation is highly planned and controllable. The driving behavior and trajectory are constrained by the inherent dynamic characteristics and operating specifications of the vehicle. Since modern trams operate in the urban road environment, they are affected by road traffic control. At the same time, the control logic and control effect of road traffic signal control equipment are also affected by the dynamic characteristics and geometric c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L27/00G06F30/15
CPCG06F30/15B61L27/60Y02T10/40
Inventor 张海雷陆虎屈龙谢涵洲赵莉莉崔姗姗罗典卢火平
Owner 佛山市城市规划设计研究院