Space matching method and system for urban road and bus route

Abstract

The invention discloses a spatial matching method and system for an urban road and a bus route. The method comprises the following steps: extracting first geographic information of a to-be-matched bus route; a first buffer distance is preset, and symmetrical buffer areas on the two sides of the line are constructed; constructing a road network subset S0; obtaining a road network subset S0 ', and setting the road network subset S0' as a line matching alternative set; obtaining a starting point, and constructing a road network subset S1; obtaining a preset projection distance road section, and constructing a road network subset S1 '; obtaining a minimum distance road section as a first road section; constructing a bus route matching result set; and determining the i-th matched road section of the bus route to be matched based on the first space matching logic. The problems that when a bus route is matched with an urban road in the prior art, the matching precision based on intersection nodes is poor, and a complex and refined road network is difficult to adapt are solved, and in addition, the technical problem that when the sum of the areas of closed polygons defined by the bus route and the urban road is minimum for matching, the computing power requirement is high, and the matching efficiency is low is solved.

Description

technical field [0001] The present application relates to the field of computer application technology, in particular to a method and system for spatial matching of urban roads and bus routes. Background technique [0002] In the field of urban transportation, it is of great significance for traffic operation monitoring, evaluation, and related research work to master the operation indicators of bus traffic speed and bus cross-section passenger flow in each section of urban roads. However, indicators such as bus operating speed and bus passenger flow are usually measured in units of bus lines. The bus line network and urban road network exist independently in layers, so the calculated bus line indicators cannot directly correspond to urban road sections. Therefore, it is necessary to establish a spatial matching relationship between bus lines and urban roads. Due to surveying and mapping errors and mapping deviations, the actually collected bus route electronic map trajecto...

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a method and system for spatial matching of urban roads and bus lines to solve the problem of poor matching accuracy based on intersection nodes when matching bus lines and urban roads in the prior art, making it difficult to adapt to complex refinements The road network problem, in addition, when using the minimum sum of the area of ​​the closed polygon enclosed by the bus line and the urban road for matching, there is a technical problem that requires high computing power, resulting in low matching efficiency

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