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Published byDarrell Dorsey Modified over 9 years ago
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The Automated Highway System (AHS) and The Intelligent Vehicle Initiative (IVI)
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AHS – The Vision
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AHS – The Vision Removal of human error from the task of driving
Efficiency improvements (increased flow) Safety improvements (decreased accidents) Environmental improvements (decreased fuel use and emissions)
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AHS – The Vision (California Style)
Dedicated AHS lanes Cars following in closely spaced platoons Automated merging / diverging Increased lane capacity x 2
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AHS – The Vision HOW? Technology to allow removal of reaction time and distance Decrease in following distance = increase in capacity Safety maintained by technology Internal platoons = low speed differential crashes Space between platoons = decrease in severity of crash between platoons
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AHS Platooning Concept
AHS Lane Regular Lane
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AHS – The Technology Automated Check-in Automated Check-out
Lateral and Longitudinal Controls Malfunction Management and Analysis Commercial (& transit) Vehicle Needs Deployment Issues
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San Diego Tests Mandated by Congress
Took place in San Diego in 1997 on a barrier separated HOV lane Systems built by Automated Highway Systems Consortium A partnership between government / universities / car companies
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San Diego Test Results AHS is feasible AHS is not currently practical
Various AHS technologies are marketable AHS technologies have significant positive safety implications
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Intelligent Vehicle Initiative
The result of the AHS Findings Very heavy safety orientation Use new technology on roadside and in vehicles to make roadways safer
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IVI Technologies Currently on the market
ABS (Anti-lock braking systems) Night vision systems GPS Adaptive cruise control Front end collision warning systems Automated mayday systems
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IVI Technologies Future Systems (under active development)
In-vehicle signing of Dangerous conditions Approaching emergency vehicle Side collision avoidance systems Rear object warning systems Lane departure warning systems
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IVI Technologies Future Technologies (continued)
Remote control vehicles Snow plows “Guard” vehicles for maintenance (unmanned crash attenuator vehicles) Multi-vehicle “trains” (1 driver, multiple vehicles) for commercial trucks on barrier separated roads
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IVI Technologies Future Technologies (continued)
Drowsy driver recognition Intoxication detection Automated steering control Automated collision avoidance Lane following Obstacle recognition Intersection collision warning systems
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IVI Technologies Human factors is a big deal
Do people trust the technology Will people over-compensate for the technology (or misunderstand its capabilities) ABS 4-wheel drive in the snow
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IVI Technology Deployment is a big issue
Public infrastructure versus private system Chicken and egg problem
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