PROJECTION AND IMPLEMENTATION OF A DIALOGUE-ORIENTATED INFORMATION SYSTEM FOR ROAD TRAFFIC
PROJEKTIERUNG UND IMPLEMENTIERUNG EINES DIALOGORIENTIERTEN AUSKUNFTSYSTEMS FUER DEN STRASSENVERKEHR
Within the framework of a course entitled "programming practice I" which included the study of macro-information systems, a highway information system was modelled. The program had to enable the shortest route to be calculated and printed-out between two points (junctions) on a localised section of motorway. A description is provided of the planning and production phases, the structure of the accompanying highway traffic data bank, the applied algorithm including the fundamental data-structure. Finally another version of the information system is presented in algol w program language. The analysis of the problem is clearly shown in the form of an illustrated project structure plan for three parts of the exercise: data bank, user (sequence)-system and algorithm. The structure of the sequence system (version 1) is presented as an illustrated structure plan, and the structure of the information system (version 2) is illustrated in pictorial form, which allows it to be set up for central as well as for dialogue use. The fundamental module data structure agrees with version 1. It facilitates a detailed forecast of the travel time system which may be printed out as a complete network tree from which for any given starting point the routes to all other points may be established. /TRRL/
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Corporate Authors:
Dortmund University, West Germany
Abteilung Informatik
Dortmund, Germany -
Authors:
- Barth, H
- Publication Date: 1976
Language
- German
Media Info
- Features: Figures; References; Tables;
- Pagination: 79 p.
Subject/Index Terms
- TRT Terms: Algorithms; Computer programming languages; Critical path method; Data banks; Forecasting; Freeways; Implementation; Information management; Information systems; Information, data, and knowledge; Intersections; Length; Mathematical models; Networks; Research reports; Roads; Traffic; Travel time
- Identifier Terms: ALGOL (Computer language)
- Uncontrolled Terms: Models; Road networks
- Geographic Terms: Germany
- ITRD Terms: 123: Critical path method; 8614: Database; 8125: Germany; 8555: Information documentation; 455: Junction; 6488: Length; 2752: Motorway; 8559: Research report; 1053: Road network; 755: Traffic
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Research; I71: Traffic Theory;
Filing Info
- Accession Number: 00170340
- Record Type: Publication
- Source Agency: Bundesanstalt für Straßenwesen (BASt)
- Report/Paper Numbers: Monograph
- Files: ITRD, TRIS
- Created Date: Jun 28 1978 12:00AM