An automated highway system (AHS) is one in which specially equipped vehicles operate on guideways under automatic control. Recent studies reveal that deployment of automated vehicles has a positive impact on travel time when separate facilities are provided for these vehicles. This article examines the concept of a separate AHS facility constructed using existing traditional vehicle lanes. Vehicle and roadway enhancements are analyzed and the transition stages of the AHS are considered. Two representative system configurations (RSC) are studied: 1) low-level RSC, which provides access and egress links directly between the AHS lane and the traditional freeway lane; and 2) high-level RSC, which requires significant new road construction for the AHS lanes and their connections to other facilities leaving them totally separate from the traditional freeway system. AHS operation is simulated and several case studies are presented that compare existing freeway operations at different levels of utilization with an AHS scenario with the same levels of utilization.


  • English

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Filing Info

  • Accession Number: 00721063
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: May 7 1996 12:00AM