Automated Highway System

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An automated highway system (AHS) or Smart Road is a proposed intelligent transportation system technology designed to provide for driverless cars on specific rights-of-way. It is most often touted as a means of traffic congestion relief, since it drastically reduces following distances and thus allows more cars to occupy a given stretch of road.
Every major city suffers from the problems that are related to increasing mobility demands. Cities have to deal with pollution, congestion and safety problems caused by increasing traffic. Traditional transport systems are not sufficient anymore to cope with these increasing problems.
With the exception of some automatically operated metro systems (Paris, London and Lille) and some recently introduced automated buses and people-movers (Clermont-Ferrand, Eindhoven and Capelle aan de IJssel), transport systems in the present-day European city are mostly of a traditional type.
automated highway system will contribute to innovative solutions that will allow increased mobility in a well-controlled manner, using technologies with low pollution, high safety levels and a much increased efficiency, using either ?a separate infrastructure or existing roads. In future mobility scenarios, such new transport systems will be part of the urban environment. These new transport systems will be the answer to the new mobility demands of the future society. In our vision, the urban mobility will be greatly supported by new transport system concepts, which are able to improve the efficiency of road transport in dense areas while at the same time help to reach the zero accident target and minimize nuisances.



Automated highway system?s ambitious goals can be achieved by:

  • Developing advanced concepts for advanced road vehicles for passengers and goods. Most of the earlier projects addressed isolated aspects of the mobility problems of cities, whereas AUTOMATED HIGHWAY SYSTEM ??focuses on the overall urban transportation problem
  • Introducing new tools for managing urban transport. AUTOMATED HIGHWAY SYSTEM ??will develop tools that can help cities to cross the thresholds that are preventing them from introducing innovative systems. For instance, the absence of certification procedures and the lack of suitable business models will be addressed.
  • Taking away barriers that are in the way of large-scale introduction of automated systems. Some of these barriers are of a technological nature, some are of a legal or administrative nature: for example, the legal requirement for vehicles using public roads where the driver is responsible for the vehicle at all times, which effectively prohibits driverless vehicles from using public roads.
  • Validating and demonstrating the concepts, methods and tools developed in AUTOMATED HIGHWAY SYSTEM ??in European cities. In a number of other cities, studies will be carried out to show that an automated transport system is not only feasible, but will also contribute to a sustainable solution for the city?s mobility problems, now and in the future.
  • To survey and document automated highway system with pedestrian safety systems on roads. These systems include crossing control arms, video cameras, radar and acoustic detection systems, skirts, and collision avoidance systems.

How it works

In one scheme, the roadway has magnetized stainless-steel spikes driven one meter apart in its center The car senses the spikes to measure its speed and locate the center of the lane. Furthermore, the spikes can have either magnetic north or magnetic south facing up. The roadway thus has small amounts of digital data describing interchanges, recommended speeds, etc.
The cars have power steering and automatic speed controls, which are controlled by a computer.
The cars organize themselves into platoons of eight to twenty-five cars. The platoons drive themselves a meter apart, so that air resistance is minimized. The distance between platoons is the conventional braking distance. If anything goes wrong, the maximum number of harmed cars should be one platoon.

Fig no.1 intelligent vehicle? with sensors and actuators

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