During the past year, which was the first year of a planned three-year program, the research efforts were focused principally on the development of a physical test facility which would be employed to study control and communication problems at, and below, the sector level. These studies would be focused on the automatic control of high-speed traffic operations at small time headways. The primary activities undertaken were: (a) The implantation of both lateral and longitudinal information sources at the 6.4-km, skid-pad facility; (b) The specification of a sector-level controller which would be comprised of a commercially available microprocessor and a considerable amount of special-purpose hardware; (c) A study of automatic longitudinal control, both in the normative and emergency modes of operation; (d) The evaluation of a 'flattened' helical-line information source for providing continuous position information to each controlled vehicle in a sector; and (e) A study of automatic steering with an emphasis on high-speed, lane-changing operations. The status of items (a), (c) and (d) are discussed in detail. The secondary activities included a reevaluation of a headway safety policy for automated highway operations, and the development of a methodology to determine the accident costs associated with a particular policy choice.
Fundamental Studies in Automatic Vehicle Control
1978
200 pages
Report
Keine Angabe
Englisch
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