Bridge Automation And Safety Controlling Of Roadway Bridge Using PLC

Electrical Engineering

Nowadays, the number of vehicles has increased exponentially, but the load capacities of roads and transportation systems have not developed in an equivalent way to efficiently cope with the number of vehicles traveling on them. Due to this, road jamming and traffic correlated pollution have increased with the associated adverse societal and financial effect on different markets worldwide. A static control system may block emergency vehicles due to traffic jams. PLC have gained increasing attention in traffic detection and avoiding road congestion. PLC are very trendy due to their faster transfer of information, easy installation, less maintenance, compactness. There has been significant research on Traffic Management Systems using PLC to avoid congestion, ensure priority for emergency vehicles and cut the Average Waiting Time (AWT) of vehicles at intersections. In recent decades, researchers have started to monitor real-time traffic using PLC , IR sensor , DC motor , Lazers , Buzzer and infrared signals. This paper presents a survey of current roadways , Highway bridge & railway bridge traffic management schemes for priority-based signalling, and reducing congestion and the AWT of vehicles. The main objective of this survey is to provide a taxonomy of different traffic management schemes used for avoiding congestion. Existing traffic management schemes for the avoidance of congestion and providing priority to emergency vehicles are considered and set the foundation for further research.

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