A method for accurately extracting bus travel routes based on bus operating trajectories

Abstract

The invention discloses a method for accurately extracting bus driving paths based on bus operating trajectories, which includes the following steps: first, perform data filtering processing on the collected bus operating trajectory data of a certain line through a trajectory filtering algorithm; then, through The multi-trajectory fusion algorithm fuses the filtered trajectories into one trajectory; then, uses the road grabbing service of Amap to correct the path offset of the fused trajectory, and initially obtains a path for the bus line; finally, through the starting and ending paths The fusion algorithm performs main and auxiliary station offset correction on the corrected path to obtain an accurate path on the bus line. This method fully takes into account many factors such as bus-mounted GPS signal drift and positioning inaccuracy, and shows how to filter, fuse and correct bus operation trajectory data to make the extracted bus driving path more realistic and reliable. and accuracy.

Description

technical field [0001] The invention relates to a method for accurately extracting a bus running route based on a bus operation track, and relates to a method for processing and analyzing bus historical track data. Background technique [0002] Smart public transportation is an important direction for the development of urban traffic informationization. Through the construction of public transportation informationization, the convenience and intelligence of public transportation will be improved. The GPS data on the bus is one of the most important data to support the construction of smart public transport. Although the GPS positioning of the bus machine is relatively accurate at present, it is affected by factors such as terrain and weather in practical applications. The GPS uploaded by the bus machine The data sometimes has a large offset, which reduces the quality of the GPS data on the bus. [0003] The GPS data on the bus mainly acquires the bus operation trajectory da...

AI Technical Summary

Problems solved by technology

[0004] The existing way to obtain the bus travel route is mainly to directly obtain the bus travel route according to one or several operating trajectories of the bus. This method is simple and easy and can basically confirm the bus travel route in most cases, but this This method will be affected by the accuracy of GPS data, and sometimes the coordinates of the obtained bus travel route will be greatly shifted, and the coordinates of the route will not be located on the road, thus affecting other indicators or data that depend on the calculation of the bus travel route. have an impact

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