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Title: COMPARATIVE ACCURACIES OF FIELD AND PHOTOGRAMMETRIC SURVEYS
Accession Number: 00202560
Record Type: Component
Abstract: DATA RESULTING FROM THE EXAMINATION OF SURVEYS MADE BY PHOTOGRAMMETRIC AND BY CONVENTIONAL FIELD SURVEY METHODS FOR HIGHWAY DESIGN ARE COMPARED. THE GREATER PART OF THE DATA PRESENTED COMPARES THE ACCURACY OF ELEVATIONS ON ONE HIGHWAY SURVEY PROJECT FOR DESIGN OF A SECTION OF INTERSTATE HIGHWAY APPROXIMATELY 7 MI LONG. THE RESULTS OF ONE EVALUATION INDICATE THAT THE FREQUENCY AND MAGNITUDE OF DIFFERENCES BETWEEN TWO FIELD PARTIES ARE APPROXIMATELY THE SAME AS THOSE BETWEEN EITHER FIELD PARTY AND THE PHOTOGRAMMETRIC APPROACH. DATA FROM A LESS EXTENSIVE EXAMINATION OF THREE OTHER PROJECTS ARE ALSO ANALYZED AND COMPARED. BASIC FIELD SURVEY CONTROL IS NECESSARY FOR HORIZONTAL MEASUREMENTS MADE BY EITHER CONVENTIONAL FIELD OR PHOTOGRAMMETRIC SURVEYING METHODS. ASIDE FROM THIS, AND TO THE EXTENT HORIZONTAL MEASUREMENTS ARE SHOWN BY PLOTTED POSITIONS, PHOTOGRAMMETRIC METHODS RESULT IN BETTER LOCAL AND OVERALL HORIZONTAL ACCURACY. BOTH METHODS, HOWEVER, ARE ADEQUATE FOR THE PURPOSES OF HIGHWAY DESIGN AND CONSTRUCTION.
Supplemental Notes: 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.
Monograph Title: Monograph Accession #: 01410064
Authors: Dickerson, Lewis AWarneck, Peter EPagination: pp 49-58
Publication Date: 1966
Serial: Media Type: Digital/other
Features: Figures
(6)
; Tables
(2)
TRT Terms: Identifier Terms: Old TRIS Terms: Subject Areas: Design; Highways
Files: TRIS, TRB
Created Date: Jun 23 1994 12:00AM
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