Details:

Creators:
Varaiya, Pravin
Subject/TRT Terms:
[+]
Automated Vehicle Control Intelligent Transportation Systems INTELLIGENT VEHICLE SYSTEMS Route Guidance Spacing System Architecture Traffic Congestion Traffic Flow
Resource Type:
Proceedings
Corporate Publisher:
United States. Joint Program Office for Intelligent Transportation Systems
Abstract:
IVHS systems influence four kinds of decisions that drivers make during their trip. The

corresponding tasks that IVHS systems carry out are route and flow control, congestion

control, vehicle coordination, and spacing. A comparison of two scenarios shows how IVHS

influence over vehicle behavior can range from minor (under a strategy limited to providing

information and advice) to major (under full automation which preempts driver control).

The four IVHS tasks have three differentiating features: time scale or the time available to

carry out the task; spatial scope or the impact of executing the task on the traffic system;

and information span or the extent of information needed to carry out the task.

An IVHS architecture organized in a hierarchy of four layers - network, link, coordination.

and regulation - is proposed. This hierarchy resolves in a natural way the

three differentiating features. The architecture can accommodate a wide range of automation

strategies from the simplest, which limits itself to providing driver information. to

the most complex. which achieves total control of the vehicle. The architecture permits

the incorporation of new functional capabilities over time, and encourages a decentralized

implementation of IVHS tasks.

An open architecture specification is urged as a means to promote rapid development

of IVHS and to ensure the interworking of independent, subsystem implementations. It is

also suggested that IVHS standards should be specified in a formal-mathematical language

to simplify later problems of design validation and conformance testing of products.


Format:
PDF
Collection(s):
ITSJPO Digital Library
Main Document Checksum:
[+]
urn:sha256:53f9b27d43b3f841f06ff5fb51005611fe903c45d8a789ed4932c828b564e6a3
Download URL:
https://rosap.ntl.bts.gov/view/dot/2458/dot_2458_DS1.pdf
File Type:

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