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Abstract

Ramp metering technology is a main method of conducting traffic control management and alleviating traffic congestion. Compared with expanding highway mileage, ramp metering technology is characterized by the low cost, short cycle, fast effect, and strong sustainability, finding widespread application in engineering practice in European and American countries. Starting from the basic principles and technical difficulties of ramp metering technology, this paper elaborated in detail on the application distribution, benefit statistics, and applicable conditions of ramp metering technology in the United States. The statistical results show that the application of ramp metering technology reduces the average travel time by 38.7%, increases the average operating speed by 38.25%, and reduces the average accident rate by 30.1%. Meanwhile, based on the road management characteristics in China, the difficulties in applying ramp metering technology were analyzed, which were mainly reflected in the localization of model parameters, geometric conditions, pilot applications, and other aspects. Finally, according to the characteristics and principles of ramp metering technology, the implementation process of ramp metering technology was proposed to provide technical references for the control of freeways and urban expressways in China.

Publication Date

11-8-2022

DOI

10.14048/j.issn.1671-2579.2022.05.049

First Page

269

Last Page

273

Submission Date

April 2025

Reference

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