Module 9 : Intelligent Transportation System

Lecture 48 : Intelligent Transportation System - I

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	Advanced vehicle control and safety systems This user service aims to improve the safety of the transportation system by supplementing drivers' abilities to maintain vigilance and control of the vehicle by enhancing the crash avoidance capabilities of vehicles. Following user services are included in this group: Longitudinal Collision Avoidance This user service provides assistance to vehicle operators in avoiding longitudinal collisions to the front and/or rear of the vehicle. This is achieved by implementing rear-end collision warning and control, Adaptive Cruise Control (ACC), head-on collision warning and control, and backing collision warning to the drivers. Lateral Collision Avoidance This helps drivers in avoiding accidents that result when a vehicle leaves its own lane of travel, by warning drivers and by assuming temporary control of the vehicle. This service provides to the drivers the lane change/blind spot situation display, collision warning control and lane departure warning and control. Intersection Collision Avoidance This user service is specifically aimed at providing vehicle operators with assistance in avoiding collisions at intersections. The system tracks the position of vehicles within the intersection area through the use of vehicle-to-vehicle communications or vehicle to infrastructure communications. Vision Enhancement for Crash Avoidance This service helps in reducing the number of vehicle crashes that occur during periods of poor visibility by in vehicle sensors capable of capturing an image of driving environment and providing a graphical display of the image to the drivers. Safety Readiness This helps to provide drivers with warnings regarding their own driving performance, the condition of the vehicle, and the condition of the roadway as sensed from the vehicle. Pre-Crash Restraint Deployment This service helps in reducing the number and severity of injuries caused by vehicle collisions by anticipating an imminent collision and by activating passenger safety systems prior to the actual impact. Automated Vehicle Operations (AVO) This service provides a fully automated vehicle-highway system in which instrumented vehicles operate on instrumented roadways without operator intervention. Emergency management This service has two functions: Emergency notification and personal security - This is to provide travellers the ability to notify appropriate emergency response personnel regarding the need for assistance due to emergency or non-emergency situations either by manually or automatically from the vehicle on the occurrence of an accident. Emergency vehicle management - This user service is to reduce the time from the receipt of an emergency notification to the arrival of the emergency vehicles at incident location thereby reducing the severity of accident injuries. Information management This service is aimed to provide the functionality needed to store and archive the huge amounts of data being collected on a continuous basis by different ITS technologies. Maintenance and construction management This user service is aimed to provide the functionality needed for managing the fleets of maintenance vehicles, managing the roadway with regards to construction and maintenance and safe roadway operations.