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Road network simulation input model construction method and device and storage medium

A technology for inputting models and building methods, applied in the field of intelligent transportation, which can solve problems such as complex solutions, poor dynamics, and difficulty in applying large-scale complex road networks, and achieves the effects of rapid solutions, strong adjustment, and easy adjustment.

Active Publication Date: 2020-12-11
JIANGSU PROVINCIAL COMM PLANNING & DESIGN INST
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a road network simulation input model construction method, device and storage medium, which can solve the problems of poor dynamics, complicated solutions, and difficulty in applying to large-scale and complex road networks in the prior art question

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  • Road network simulation input model construction method and device and storage medium
  • Road network simulation input model construction method and device and storage medium
  • Road network simulation input model construction method and device and storage medium

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Embodiment 1

[0052] Such as figure 1 As shown, the embodiment of the present invention provides a road network simulation input model construction method, the method includes the following steps:

[0053] Establish a simulation input estimation model based on road network topology, road geometric features and roadside detection data;

[0054] Calculate the theoretical inflow and outflow of each flow exchange point in the simulation input estimation model;

[0055] According to the theoretical inflow and outflow of each traffic exchange point and the pre-defined constraints, the parameters of the simulation input estimation model are calibrated until the simulation input estimation model can meet all the constraints, and the optimal value of the traffic flow activity intensity is obtained;

[0056] According to the optimal value of traffic flow activity intensity, the simulation input is revised to estimate the flow in and out of each flow exchange point of the model, and the road network ...

Embodiment 2

[0099] This embodiment is based on a specific application scenario of a road network simulation input model construction method provided by Embodiment 1. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection of the present invention. scope.

[0100] Take the Yangshan-Shengfeng section of S342 in Wuxi City as an example: the framework of the real scene, microscopic simulation model and simulation input estimation model of this section is as follows: Figure 5 As shown, the road network simulation input model is constructed using the roadside detection data in June 2020.

[0101] The parameters of the simulation input estimation model for this road section are shown in Table 2. According to the road network topology, road geometric characteristics and roadside detection data, the simulation input estimation model is established as follows: Figure 6 shown.

[0102] Table 2 ...

Embodiment 3

[0129] The embodiment of the present invention provides a road network simulation input model construction device, including the following modules:

[0130] Modeling module: used to establish the simulation input estimation model, and preset the parameters of the estimation model;

[0131] Calculation module: used to calculate the theoretical inflow and outflow of each flow exchange point of the estimated model;

[0132] Calibration module: used to calibrate the parameters of the estimated model;

[0133] Correction output module: used to correct the incoming and outgoing flow of each flow exchange point of the estimated model, and output the road network simulation input model.

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Abstract

The invention discloses a road network simulation input model construction method and device and a storage medium. The method comprises the steps: establishing a simulation input estimation model according to a road network topological structure, road geometrical characteristics and roadside detection data; calculating theoretical inlet and outlet flow of each flow exchange point of the simulationinput estimation model; calibrating parameters of the simulation input estimation model according to the theoretical inlet and outlet flow of each flow exchange point and a pre-defined constraint condition until the simulation input estimation model can meet all constraint conditions, and obtaining an optimal value of the traffic flow activity intensity; and according to the optimal value of thetraffic flow activity intensity, correcting the inlet and outlet flow of each flow exchange point of the simulation input estimation model to obtain a road network simulation input model. According tothe method, the road network simulation input model can be quickly obtained, macroscopic spatio-temporal data provided by adjacent roadside detection equipment is combined with a microscopic simulation model, and more dynamic information is provided for trunk road network monitoring point construction scale and layout and trunk road network operation supervision strength enhancement.

Description

technical field [0001] The invention relates to a road network simulation input model construction method, device and storage medium, belonging to the technical field of intelligent transportation. Background technique [0002] my country's highway traffic informatization has gone through the stages of preparation, initial development, and support development, and has now entered the stage of integrated development, forming a relatively complete basic engineering system of highway informatization. In order to realize the "visible and measurable , controllable, and serviceable" level and the intelligent level of road network management and service have laid the foundation. Taking the traffic survey site in Jiangsu Province as an example, according to the "Jiangsu Provincial Ordinary Highway Network Operation Monitoring Facility Layout Plan (Trial)" (2019-2030), after the construction and adjustment of the interchange station, the province's ordinary trunk highway interchange ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/18G08G1/065
CPCG06F30/18G08G1/065
Inventor 吴岚刘芷辰万剑蒋中阳姜圣丁闪闪党倩
Owner JIANGSU PROVINCIAL COMM PLANNING & DESIGN INST
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