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A Construction Method of Traffic Road Network Model under Time Measurement

A construction method and road network technology, applied in the field of intelligent transportation, can solve the problems of incomplete research and achieve the effect of enriching the topology model

Active Publication Date: 2020-11-20
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional road network model attaches great importance to the description of road sections and ignores the complexity of intersections. The path planning and other related research carried out on this model is not comprehensive. Therefore, it is necessary to establish a model that can consider both road sections and intersections. attributes of the road network and reflect its time attributes

Method used

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  • A Construction Method of Traffic Road Network Model under Time Measurement
  • A Construction Method of Traffic Road Network Model under Time Measurement
  • A Construction Method of Traffic Road Network Model under Time Measurement

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0040] In this embodiment, a method for constructing a traffic road network model under time measurement includes the following steps:

[0041] Step 1: Obtain the topological map of the distance road network model, which contains road sections and intersection information,

[0042] Step 2: Take the distance from the center point of the intersection in the road network model as the center of the circle, and make a circle with a diameter not smaller than the total width of the intersection, and intersect each road section connected to the center of the current intersection respectively. The intersection position is the new node, the number of new nodes is equal to the number of road sections connected by the corresponding intersection; then curves are used to connect the new nodes on the two adjacent road sections respectively, and if there is no connection between the two adjacent road sections, delete the distance from the road network model For the existing intersection straigh...

Embodiment 2

[0063] This embodiment takes Image 6 The road network shown is based on, according to the method of embodiment 1, can set up corresponding such as Figure 7 The traffic network model under the time scale shown.

[0064] What is not mentioned in the present invention is applicable to the prior art.

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Abstract

The invention provides a traffic road network model construction method under time measurement. The method comprises the following steps: firstly obtaining static data, including inherent informationof road sections and intersections, of a traffic road network; processing and predicting dynamic information, namely traffic flow and traffic speed, in the road network; secondly, calculating time consumption cost of the road sections and intersections in the road network, and subdividing the road section connection modes of the intersections; and finally, establishing a traffic road network modelunder time measurement. According to the method, the processing of the intersections is enriched, road traffic information can be fused in calculation of the consumed time of the road sections and the intersections, the established model can provide convenience for study on time-related problems in road networks in the future, and supports are provided for traffic decisions such as path planningand the like.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a method for constructing a traffic road network model under time measurement, which serves for the construction of a road network model for traffic path planning. Background technique [0002] Transportation is the artery of urban economic development, and plays an important role in the development of urban economy, the improvement of people's living standards and the overall construction of smart cities. When people make traffic decisions, such as route selection by travelers and traffic control by managers, they all need to know the time attributes of the road, including the time spent by vehicles passing through the road section, the delay caused by vehicles waiting at intersections, etc., to judge In view of road network congestion, make reasonable countermeasures and measures. [0003] At present, in the process of establishing the traffic road network model, most...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G06Q10/04
CPCG06Q10/047G08G1/0125G08G1/0137
Inventor 梁秀霞李万通杨凡陈娇娇庞荣荣
Owner HEBEI UNIV OF TECH