Method for constructing road intersection equal-proportion model

Abstract

The invention discloses a method for constructing a method for constructing a road intersection equal-proportion model; and the method comprises the steps: abstracting traffic elements, such as a roadcontour, a lane, an isolation belt, a flow guide island and a pedestrian crossing, into a simple geometric figure according to the spatial features of a road intersection; setting key node space coordinates of various traffic elements, configuring corresponding traffic attributes, and drawing a model consistent with the physical intersection in angle, distance and area. Space and attribute information of the model is stored in a standard and universal text format, and can be looked up and modified on various carriers. The model comprises traffic management attribute characteristics and supports application scene requirements of traffic data analysis, signal control, operation evaluation and the like.

Description

technical field [0001] The invention relates to the technical field of road traffic, in particular to a method for constructing an isometric model of a road intersection. Background technique [0002] A road intersection is a place where roads intersect with roads, where traffic flows composed of vehicles and pedestrians meet. In the entire urban road traffic network, road intersections are frequent points of traffic congestion and traffic accidents, and are the most critical management objects of urban traffic management departments. [0003] Computer graphics software can be used to construct digital models of road intersections, and express road outlines, lanes, diversion islands, crosswalks and other traffic elements through points, lines, planes, symbols, and text. The road intersection model includes not only the geometric shape of the intersection, but also the attribute information of each element in the intersection, which is the necessary basic data for traffic or...

AI Technical Summary

Problems solved by technology

[0005] Traditional methods only provide general-purpose drawing tools, and various traffic elements need to be disassembled into basic geometric shapes such as points, lines, and surfaces to be drawn separately. lot of time

[0006] The traditional method focuses on engineering drawing, does not consider data analysis and application requirements, does not manage the internal correlation between traffic attributes and traffic elements, and cannot be directly applied to traffic analysis, control and other systems

[0007] The commercial software used in the traditional method is stored in a specific format for commercial purposes, and needs to be viewed and edited in the corresponding graphics software, which cannot meet the needs of multi-user access in the network and mobile application environment, and is not conducive to information sharing and data update

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