INVESTIGATION INTO AUTOMATIC SURVEY OF VEHICLE TYPES
UNTERSUCHUNGEN ZUR AUTOMATISCHEN ERMITTLUNG VON FAHRZEUGARTEN
THIS PAPER DEALS WITH POSSIBLE WAYS OF CLASSIFYING GOODS VEHICLES ACCORDING TO TWO VEHICLE TYPES AND PLACING EACH VEHICLE INTO VEHICLE-TYPE GROUPS. THE AUSTRIAN PRODUCERS OF THE MEASURING AND COUNTING EQUIPMENT ALSO OFFER SYSTEMS FOR DIFFERENTIATING VEHICLE TYPES. THE METHOD BY WHICH THE SYSTEM OPERATES HAS BEEN STUDIED AND THE ACCURACY OF THE AUTOMATIC DIFFERENTIATION EQUIPMENT QUANTIFIED. FROM THE NUMBER OF RELEVANT POSSIBLE DIFFERENTIATION METHODS FOR PLANNING AND OPERATION USE, TWO WERE SELECTED, TO BE ADOPTED FOR THE DIFFERENTIATION CRITERIA ESTABLISHED. THE VEHICLE HEIGHT SERVES AS THE FIRST OBJECTIVE CRITERION FOR DIFFERENTIATION, WHICH SHOWS IN FACT THAT ALL VEHICLE GROUPS EXCEPT MOTOR CARS CAN BE GROUPED TOGETHER IN A "GOODS AND SIMILAR VEHICLES" CATEGORY. THE SECOND QUALITATIVE CRITERION CONSIDERS THE FUNCTIONAL BEHAVIOUR OF THE VEHICLES AND LEADS TO DIVISION INTO A GROUP OF PRIVATE CARS AND LIGHT DELIVERY VEHICLES AND A SECOND GROUP MADE UP OF FAST TRANSPORTERS, SMALL GOODS AND OTHER GOODS VEHICLES. BOTH AUTOMATIC DIFFERENTIATING SYSTEMS UNDER INVESTIGATION ARE BASED ON THE SAME MEASURING PRINCIPLE - A VEHICLE LENGTH MEASUREMENT USING INDUCTION LOOPS. SINCE THE RANGES OF LENGTHS COVERING HEAVY PRIVATE VEHICLES AND LIGHT DELIVERY VEHICLES LAP, SMALLER ERRORS WERE EXPERIENCED USING AUTOMATIC DIFFERENTIATION BY THE QUALITATIVE CRITERION. USING EITHER SYSTEM OF DIFFERENTIATION, THE GRADING ERRORS DID NOT SIGNIFICANTLY GO BEYOND THE RANGE OF COUNTING ERRORS ASSOCIATED WITH SIMPLE GOODS VEHICLE SURVEYS.
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Authors:
- STEIERWALD, G
- SCHOENHARTING, J
- MUELLNER, W
- Publication Date: 1976
Language
- German
Media Info
- Pagination: 81P
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Serial:
- Strassenforschung
- Issue Number: 54
- Publisher: Ministry of Building and Technology, Austria
Subject/Index Terms
- TRT Terms: Automation; Automobiles; Classification; Cross sections; Research reports; Statistics; Traffic counts; Traffic flow; Trucks; Vehicles
- Geographic Terms: Austria
- ITRD Terms: 8007: Austria; 3882: Automatic; 1243: Car; 8513: Classification; 6404: Cross section; 1236: Lorry; 8559: Research report; 6555: Statistics; 689: Traffic count; 671: Traffic flow; 1255: Vehicle
- Subject Areas: Data and Information Technology; Motor Carriers; Vehicles and Equipment; I10: Economics and Administration; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01301942
- Record Type: Publication
- Source Agency: Bundesanstalt für Straßenwesen (BASt)
- Files: ITRD
- Created Date: Nov 21 2010 8:27AM