00225115

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http://onlinepubs.trb.org...s/hrr/1967/202/202-004.pdf

AS A PART OF THE RESEARCH PROJECT GAP ACCEPTANCE AND TRAFFIC INTERACTION IN THE FREEWAY MERGING PROCESS, FIELD STUDIES FOR THE COLLECTION OF DATA WERE PERFORMED ON NATIONWIDE BASIS AT A NUMBER OF SELECTED ENTRANCE RAMPS, UTILIZING AN AERIAL PHOTOGRAPHIC TECHNIQUE. THIS TECHNIQUE, THE DATA REDUCTION METHODS AND THE STUDY SITES SELECTED ARE DESCRIBED IN DETAIL. DATA EDITING ROUTINES AND THE ANALYSIS OF THE DATA FOR BASIC TRAFFIC PARAMETERS ARE DISCUSSED AND SOME OF THESE PARAMETERS USED TO ILLUSTRATE THE MERGING OPERATION AT EACH STUDY SITE. THE QUALITATIVE EFFECT OF VARIOUS GEOMETRIC ELEMENTS ON THE OPERATION AS MIRRORED BY THE TRAFFIC PARAMETERS OF VOLUME, DENSITY, SPEED AND ACCELERATION NOISE ARE DISCUSSED.

Paper sponsored by Committee on Freeway Operations and presented at the 46th 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

01410152

pp 76-122

1967

Highway Research Record

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Figures (55) ; References (8) ; Tables (8)

Aerial photography; Building entrances; Data collection; Data reduction; Field studies; Freeways; Geometric design; Merging traffic; Ramps; Traffic density; Traffic noise; Traffic speed; Traffic volume

Highways; Operations and Traffic Management

TRIS, TRB

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