Method for calculating road traffic performance index based on traffic surface radar

Abstract

The invention belongs to the technical field of acquiring and processing urban viaduct information, and specifically relates to a method for a calculating road traffic performance index based on a traffic surface radar. The method includes the steps of installing the traffic surface radar on a road section and calibrating and commissioning the traffic surface radar, obtaining the data acquired by the traffic surface radar, calculating the equivalent traffic of the road in a single sampling period, calculating traffic state dividing intervals with the equivalent traffic as a basic parameter, and calculating road traffic performance index. The method has the advantages of high applicability, sampling and calculating flexibility and accurate determination. Traffic state of a current road section can be determined in a more scientific and efficient way, traffic jam of the current road section can be known, and the traffic passing efficiency of the current road section can be finally improved.

Description

technical field [0001] The invention belongs to the technical field of urban viaduct information collection and processing, and in particular relates to a road section traffic operation index calculation method based on traffic scene radar. Background technique [0002] The traffic operation index is also called the traffic index, also known as the traffic congestion index, which is a relatively popular index in the field of traffic informatization in recent years. In 2011, Beijing published the local standard "DB11 / T785-2011 Urban Road Traffic Operation Evaluation Index System", which was mainly compiled by Guo Jifu and also proposed a series of calculation methods. Later, in 2016, Zhejiang Province launched the local standard "DB33 / T998-2016 Urban Road Traffic Operation Status Evaluation Specification", and the province required traffic police to be on the traffic operation index platform, which is enough to prove that the traffic operation index is recognized in the indus...

AI Technical Summary

Problems solved by technology

Since the current general traffic operation index calculation method first determines the traffic state interval based on the flow rate, and then calculates the piecewise function model; this traditional method will ignore many problems: First, the speed of different models is different

In addition, the division of parameter intervals in the calculation process of the traditional method is mostly based on experience or existing industry standards or local standards, mainly local standards. At present, the places with local standards are mainly Beijing, Guangzhou and Zhejiang provinces. It is obviously not universal, and it is difficult to apply mechanically when used in other places

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