THIRD GENERATION DESTINATION SIGNING: AN ELECTRONIC ROUTE GUIDANCE SYSTEM

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/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 1-18
  • Monograph Title: Route guidance
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00225485
  • Record Type: Publication
  • Report/Paper Numbers: Paper No 1
  • Files: TRIS, TRB
  • Created Date: Sep 2 1994 12:00AM