00202604

Component

http://onlinepubs.trb.org...s/hrr/1966/142/142-001.pdf

A METHOD DESIGNED TO MEASURE TRAFFIC MOVEMENT IN A MANNER WHICH IS APPROPRIATE FOR THE TESTING AND VALIDATION OF MOST OF THE PRESENT THEORIES OF TRAFFIC FLOW HAS BEEN DEVELOPED. DETERMINATION OF THE VEHICLE SPACING AND SPEEDS FOR A PLATOON OF VEHICLES AT RELATIVELY SHORT INTERVALS OF TIME IS OF PRIMARY IMPORTANCE. THE BASIC PROCEDURE CONSISTS OF PLACING A VEHICLE IN THE TRAFFIC STREAM AND FOLLOWING IT BY A HELICOPTER FROM WHICH PHOTOGRAPHS WERE TAKEN AT FIXED INTERVALS OF TIME. THE EQUIPMENT USED AND DATA REDUCTION TECHNIQUES ARE DESCRIBED AND SAMPLES OF RESULTANT DATA ARE SHOWN.

Paper sponsored by Committee on Photogrammetry and Aerial Surveys and presented at the 45th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01485990

pp 1-12

1966

Highway Research Record

Digital/other

Figures (5) ; Photos (4)

Aerial photography; Data reduction; Helicopters; Measurement; Methodology; Spacing; Speed; Traffic flow; Traffic flow theory; Traffic platooning; Validity; Vehicles

Design; Highways; Operations and Traffic Management; Vehicles and Equipment

TRIS, TRB

Dec 12 1994 12:00AM

• A NUMERICAL METHOD OF ORIENTATION FOR THE KELSH PLOTTER
• AERIAL INFRARED SURVEYS: A HIGHWAY RESEARCH TOOL
• AERIAL PHOTOGRAPHY IN THE UNIFIED INFORMATION SYSTEM
• AUTOMATION IN MAP DATA COLLECTION FOR ENGINEERING COMPUTER PROGRAMS
• THE ANNOTATED PHOTOMAP FOR HIGHWAY PLANNING IN CONGESTED SUBURBAN AREAS
• THE PHOTOGRAMMETRIC METHOD AS A MEANS OF PROVIDING HIGHWAY ENGINEERS WITH AN INTEGRATED AND COMPLETE SYSTEM OF SURVEYING