A Numerical Determination Method of Expressway Traffic Index

Abstract

The present invention discloses an expressway traffic index value determination method. The method comprises the following steps: collecting expressway traffic data and constructing a historical database; constructing an expressway traffic flow base map; dividing the expressway traffic state into different grades through the clustering operation, and performing one-to-one conversion of the traffic state grades and the traffic index grades; dividing the different traffic index values in the same traffic index grade through clustering operation; calculating the divided traffic density critical threshold values of the traffic index values of the same traffic index grade; and dividing the real-time data points into the concrete expressway traffic states and the traffic index grades, and determining the concrete traffic index value according to the traffic density. The expressway traffic index value determination method realizes the calculation of the traffic index concrete values of the expressway and supports the construction of the traffic index system and the practice application on the expressway.

Description

technical field [0001] The invention relates to the field of highway operation management, in particular to a method for determining the numerical value of highway traffic index. Background technique [0002] In recent years, the construction and operation of my country's expressways are in a stage of rapid development, and the traffic volume of expressways is also increasing year by year. Especially during holidays, expressway congestion is prone to occur. Expressway managers are currently facing challenges brought about by the contradiction between traffic supply and demand. How to intuitively and timely understand the traffic operation status on the expressway, and on this basis, scientifically control the entrance and exit of the expressway, has become a solution to the traffic supply and demand problem, and for The key to providing better service to highway users and easing highway congestion. [0003] In recent years, the concept of road traffic index has become a res...

AI Technical Summary

Problems solved by technology

However, for the research and application of expressway traffic index, some scholars choose multi-indicator method and clustering algorithm to quantitatively describe expressway traffic operation state, but the content of relevant index and clustering algorithm has not been applied to the actual expressway at home and abroad. superior

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