00225485

Component

http://onlinepubs.trb.org...s/hrr/1969/265/265-001.pdf

THE PROBLEM IS ANALYZED OF ROUTING AN AUTOMOBILE DRIVER SAFELY AND EFFICIENTLY FROM HIS ORIGIN TO HIS DESTINATION. PRESENT HIGHWAY ROUTING AND NAVIGATIONAL METHODS ARE EXAMINED IN THE FRAMEWORK OF A SYSTEMS ANALYSIS OF THE HIGHWAY ROUTING SUBSYSTEM. IN THIS CONTEXT, THE FUNCTIONS, CHARACTERISTICS, NORMATIVE OPERATION, AND CONSTRAINTS ASSOCIATED WITH THE PRESENT ROUTING SUBSYSTEM ARE DELINEATED. THE ANALYSIS TRACES THE IMPLICATIONS OF REMOVING THREE MAJOR CONSTRAINTS FROM THE PRESENT HIGHWAY ROUTING SUBSYSTEM. THESE CONSTRAINTS ARE (1) COMMUNICATION WITH DRIVERS PRIMARILY EXISTS AS AN 'OPEN LOOP', (2) COMMUNICATION CANNOT BE INDIVIDUALIZED BUT MUST BE UTILITARIAN, AND (3) THE HIGHWAY AND THE AUTOMOBILE ARE SEPARATE ENTITIES. TECHNIQUES FOR COMMUNICATING WITH DRIVERS, WHICH WOULD EFFECTIVELY REMOVE PRESENT SYSTEM CONSTRAINTS, ARE NEXT EXAMINED AND CONSIDERED IN THE LIGHT OF A FUNDAMENTAL ANALYSIS OF THE ROUTING PROBLEM. EVOLVING FROM THIS ANALYSIS IS A ROUTE GUIDANCE SYSTEM CONCEPT AND A PLAN FOR IMPLEMENTING THE CONCEPT. THE CONCEPT IS CHARACTERIZED BY THESE ESSENTIAL FEATURES: (1) INDIVIDUALIZED COMMUNICATION, (2) UNAMBIGUOUS INFORMATION, (3) UNIQUE CODIFICATION SCHEMES, (4) CAPABILITY FOR CONVERSION TO DYNAMIC ROUTING, AND (5) COMPATIBILITY WITH EXISTING SIGNING TECHNIQUES. THE IMPLEMENTATION PLAN FOR THE CONCEPT CONSISTS OF A MULTIPHASED RESEARCH AND DEVELOPMENT (R & D) PROGRAM WHICH IS CURRENTLY UNDER WAY AT THE BUREAU OF PUBLIC ROADS. INCLUDED IN THE PROGRAM ARE MAJOR STUDIES LEADING TO THE DESIGN OF AN ELECTRONIC ROUTE GUIDANCE SYSTEM. FOLLOWING THE DESIGN OF THE SYSTEM A PROTOTYPE SYSTEM WILL BE INSTALLED ON AN ACTUAL HIGHWAY NETWORK FOR A THOROUGH TEST AND EVALUATION PROGRAM. /AUTHOR/

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01410743

Paper No 1

pp 1-18

1969

Highway Research Record

Digital/other

Figures (3) ; References (34) ; Tables (1)

Automobiles; Communication systems; Communications; Drivers; Electronic equipment; Routing; Systems analysis

Guidance

Highways; Operations and Traffic Management

TRIS, TRB

Sep 2 1994 12:00AM

• A DESIGN FOR AN EXPERIMENTAL ROUTE GUIDANCE SYSTEM
• DRIVER INFORMATION REQUIREMENTS AND ACCEPTANCE CRITERIA
• EXPERIMENTAL ROUTE GUIDANCE HEAD-UP DISPLAY RESEARCH
• Highway Coding for Route, Designation and Position Description