Link travel time calculating method and link travel time calculating device based on big data

Abstract

Embodiments of the invention relate to the field of intelligent transportation, and especially relate to a link travel time calculating method and a link travel time calculating device based on big data. After the single-vehicle time taken by each vehicle passing a link i in an mth period is acquired, the initial travel time value of the link i in the mth period is determined according to the single-vehicle time of each vehicle; abnormal vehicles are determined according to the single-vehicle time of each vehicle and the initial travel time value; and finally, the link travel time value of the link i in the mth period is determined according to the single-vehicle time of the vehicles after elimination of abnormal vehicles. Thus, the quality of data is ensured, the link travel time can be calculated out accurately according to collected traffic flow information and based on the big data technology, real-time traffic information service is provided, a decision-making basis is provided for traffic managers to optimize the traffic organization and ease the traffic congestion, and the level of traffic management is raised.

Description

technical field [0001] Embodiments of the present invention relate to the field of intelligent transportation, and in particular to a method and device for calculating road section travel time based on big data. Background technique [0002] In recent years, with the continuous advancement of my country's urbanization process, people's living standards have been improving day by day, and the number of urban motor vehicles has increased rapidly. The problem of urban road traffic congestion has become increasingly prominent, and traffic accidents have occurred frequently. The department's comprehensive management level and information service level pose challenges, and also bring certain negative effects on the city's economy and development. [0003] In the evaluation of urban traffic operation status, road segment travel time is an indispensable and important part. Accurate road segment travel time can provide travelers with future traffic conditions and changing trends, ind...

AI Technical Summary

Problems solved by technology

[0004] In terms of road section travel time statistics, the increase in the number of motor vehicles has made the calculation of vehicle travel time exponentially increased, and traditional data processing methods take a long time to give results, and even appear to be unresponsive; in terms of real-time road condition analysis and prediction , in the face of large-scale urban travel time estimation tasks, traditional data processing methods have been unable to do what they want

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