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AHS – The Vision

Automated Highway System (AHS) Intelligent Vehicle Initiative (IVI) Vehicle Infrastructure Integration (VII). AHS – The Vision. AHS – The Vision. Removal of human error from the task of driving Efficiency improvements (increased flow) Safety improvements (decreased accidents)

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AHS – The Vision

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  1. Automated Highway System (AHS)Intelligent Vehicle Initiative (IVI)Vehicle Infrastructure Integration (VII)

  2. AHS – The Vision

  3. 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)

  4. AHS – The Vision (California Style) • Dedicated AHS lanes • Cars following in closely spaced platoons • Automated merging / diverging • Increased lane capacity x 2

  5. 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

  6. AHS Platooning Concept AHS Lane Regular Lane

  7. AHS – The Technology • Automated Check-in • Automated Check-out • Lateral and Longitudinal Controls • Malfunction Management and Analysis • Commercial (& transit) Vehicle Needs • Deployment Issues

  8. 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

  9. San Diego Test • Results • AHS is feasible • AHS is not currently practical • Various AHS technologies are marketable • AHS technologies have significant positive safety implications

  10. 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

  11. 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

  12. IVI Technology • Deployment is a big issue • Public infrastructure versus private system • Chicken and egg problem

  13. VII • To help make IVI technologies work better we need intelligence in the road as well as in the vehicle

  14. VII • Chicken and egg problem: • What gets built / deployed first? • How does the public pay for the purchase, installation, and operation of the public’s portion of the infrastructure?

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