Public transport link speed calculation method based on real-time bus GPS data

Abstract

The invention discloses a public transport link speed calculation method based on real-time bus GPS data, and belongs to the technical field of intelligent traffic. The method comprises two parts: speed sample obtaining, and link speed synthesis. The speed sample obtaining comprises the steps: maintaining a GPS sampling point queue, generating a key sampling point sequence, and calculating a speed sample. The link speed synthesis comprises the steps: determining a speed sample size for calculation through maintaining a speed sample queue of a link, and obtaining the link speed through synthesis. The method provided by the invention eliminates the impact on the calculation of the link speed from the parking of buses in a stop range in a mode of generating the key sampling point sequence and then calculating the speed sample, and improves the accuracy of the link speed of the public transport. The method dynamically determines the sample size for calculation according to the state of the speed sample queue, calculates the dynamic calculation according to the traffic condition changing in real time, and is better in instantaneity and accuracy.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and in particular relates to a bus link speed calculation method based on real-time bus GPS data. Background technique [0002] With the continuous deepening of urban modernization, the number of motor vehicles is increasing rapidly, and the travel needs of citizens are diversified and personalized, and the pressure on urban traffic is increasing day by day. The development experience of large cities at home and abroad shows that to solve urban traffic problems, especially in super-large international cities, it is necessary to give full play to the important role of public transport. Facts have proved that the intelligent transportation system is an effective means to alleviate urban traffic congestion and solve the traffic dilemma in big cities. At present, the research hotspots of intelligent transportation systems, such as real-time traffic conditions and real-time bus arr...

AI Technical Summary

Problems solved by technology

[0007] The technology of the present invention solves the problem: overcomes the impact of station delay on speed calculation, solves the problem of insufficient link coverage under different speed sample numbers, provides a bus link speed calculation method based on real-time bus GPS data, and solves the problem of bus link speed. The real-time requirement of link speed calculation improves the coverage and accuracy of the link, and provides data support for bus arrival forecast and real-time road condition expression of the bus network, which is robust and universal

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