Road Network Operation Evaluation Method Based on Vehicle Trip Data

Abstract

The invention discloses a road network running evaluation method based on vehicle travel data. The method comprises the following steps of a, obtaining section average speed of vehicles on each road segment of a road network within the statistical interval by taking a certain time frame as the statistical interval, b, dividing speed thresholds of various traffic running levels of roads of different levels, c, determining the traffic running levels of each road segment in the statistical interval according to the road levels of the road segments and the section average speed of each road segment, d, selecting out the road segments with the traffic running levels belonging to congestion levels, and conducting statistics to obtain the number and proportion of the day congestion road segments, the week congestion road segments, the month congestion road segments and the year congestion road segments. According to the method, real-time dynamic running evaluation can be provided.

Description

[0001] This application is a divisional application. The filing date of the original application is September 6, 2012. The application number is 2012103281154. The title of the invention is road network operation evaluation method based on vehicle travel data. technical field [0002] The invention relates to the technical field of evaluation of road network operation status, in particular to a road network operation evaluation method based on vehicle travel data. Background technique [0003] For the fast-growing large cities in China, the development of society and economy has driven the development of basic connectivity networks such as transportation and information communication. The development of the economy has attracted more and more people to gather in the city, the scale and area of ​​the city have continued to expand, the demand and quantity of transportation have increased rapidly, and the structure of the road network has changed to "large-scale", "multi-level" ...

AI Technical Summary

Problems solved by technology

[0009] 2) When the theoretical method of load degree evaluation is used for the overall evaluation of the road network, it does not take into account the differences in the effects of roads with different functions and technical levels on the overall operation level of the road network, nor does it consider the interaction between them to restrict the dynamic correlation

Therefore, only the load (V / C) evaluation value of each road (road section) can be given under a set travel O-D demand condition, and the evaluation index of the overall operation level of the road network cannot be given.

[0010] 3) The load evaluation method cannot reflect the random fluctuations in the road network operation

[0012] To sum up, the theoretical method of load evaluation cannot truly reflect the real-time dynamic characteristics of the road network operation. Although it can still be used for the static evaluation of the service level of a single road or node, it is not suitable for the overall dynamic evaluation of the road network.

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