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

Abstract

The invention discloses a method for accurately extracting a bus traveling path based on a bus traveling path, which comprises the following steps: firstly, data filtering processing is carried out onthe bus traveling path data collected on a certain line through a track filtering algorithm; and secondly, the bus traveling path data is extracted from the bus traveling path data. Then, the filtered trajectory is fused into one trajectory by multi-trajectory fusion algorithm. After that, a route of the bus route is obtained by using the route-grasping service of Gaud map to correct the route deviation of the merged route. Finally, a precise route on the bus line is obtained by correcting the offset of the primary and secondary stations of the corrected route through the path fusion algorithm of the starting and terminating points. The method fully considers many factors such as GPS signal drift and inaccurate positioning of the bus, and shows how to filter, fuse and correct the data ofthe bus operation trajectory, so as to make the extracted bus travel path more realistic, reliable and accurate.

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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