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Minimizing congestion is the principal objective of ITS (Intelligent Transportation System) technology. Several techniques are already available :
- advanced information systems to modify driver behavior,
- access control (ramp metering) to limit the input into highways close to congestion,
- speed control and enforcement to operate near optimum flow condition.
- incident detection to decrease intervention time and prevent rear-end collisions.
More advanced techniques are ready for market introduction such as the ACC (Advanced Cruise Control) and collision warning to reduce the risk of rear-end collision and hopefully to minimize stop-and-go phenomenon in congested situations. However, the great expectation is to improve the usage of space by a factor of 5 to 10 with the concept of Platooning.
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