4.8 Article

A Prediction-Based Route Guidance Method Toward Intelligent and Green Transportation System

期刊

IEEE INTERNET OF THINGS JOURNAL
卷 10, 期 14, 页码 12763-12776

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JIOT.2023.3255200

关键词

Index Terms-Congestion type; intelligent and green trans-portation system; route planning; traffic congestion

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Intelligent and green transportation systems face the challenge of traffic congestion. A prediction-based route guidance method (PRGM) is proposed, which includes a novel hybrid dynamic system architecture and a novel traffic congestion control strategy. Simulations show that PRGM can perceive traffic congestion more accurately and timely, and reduce the travel time, fuel consumption, and CO2 emission of vehicles.
For the application of intelligent and green transportation systems (e.g., autonomous driving), traffic congestion is a severe challenge. So far, when traffic congestion is perceived for a route, a common solution is searching for another congestion-free route. However, it is observed that not all congestion should be tackled with rerouting since the extra overhead (e.g., travel time, fuel consumption, and CO2 emission) caused by specific congestion might be lower than that of rerouting. Against this backdrop, a prediction-based route guidance method (PRGM) is proposed for intelligent and green transportation systems. To begin with, PRGM involves a novel hybrid and dynamic system architecture based on the collaboration of vehicle clusters and the cloud platform. Notably, a backup mechanism between adjacent cluster heads is designed to avoid the problem that the data might be lost during dynamic clustering. Furthermore, PRGM involves a novel traffic congestion control strategy, which is based on four procedures: 1) perception about traffic congestion with three indexes (i.e., speed index, dense index, and acceleration index); 2) judgment about congestion type with four defined congestion types; 3) prediction about congestion duration considering the formation of congestion (i.e., why and how the congestion is formed); and 4) route planning about vehicles considering congestion duration and the extra time overhead of rerouting. Simulations are performed, and they show that the proposed PRGM not only can perceive traffic congestion more precisely and timely but also can reduce the travel time, fuel consumption, and CO2 emission of vehicles.

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