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Title: COORDINATION OF PLOTTING INSTRUMENTS AND COMPUTERS IN CROSS- SECTIONING AND CALCULATION OF QUANTITIES
Accession Number: 00202760
Record Type: Component
Abstract: NEW TECHNIQUES HAVE BEEN DEVELOPED FOR INCREASING ENGINEERING PRODUCTIVITY. IN HIGHWAY ENGINEERING. AERIAL PHOTOGRAMMETRY AND HIGH SPEED COMPUTERS HAVE BEEN SLOWLY GAINING ACCEPTANCE AS USEFUL TOOLS. BECAUSE OF ITS SIMPLICITY AND COMPARATIVELY LOW COST, THE KELSH PLOTTER HAS BEEN ADOPTED FOR PHOTOGRAMMETRIC WORK IN OHIO. THE USE IS DESCRIBED OF THE KELSH PLOTTER TO OBTAIN CROSS-SECTIONS BY DIRECT READINGS. WHEN PROPER PROCEDURE IS FOLLOWED, A VERY SATISFACTORY DEGREE OF ACCURACY IS ACHIEVED QUITE ECONOMICALLY. A DEVICE HAS BEEN DEVELOPED TO BE USED IN CONNECTION WITH THE KELSH PLOTTER THAT WILL MEASURE HORIZONTAL DISTANCES WITH EQUAL EASE AND WITH THE SAME DEGREE OF ACCURACY AS IN READING ELEVATIONS. INSTALLATION OF AN ELECTRONIC COMPUTER ONTO BOTH THE VERTICAL AND HORIZONTAL MEASURING DEVICES PROVIDES AUTOMATIC CROSS-SECTION DATA RECORDING. THE ELECTRONIC COUNTER IMPULSE, WHEN FED INTO A DIGITIZER, IS TRANSFORMED INTO A USABLE SIGNAL FOR A PRINTING KEY PUNCH MACHINE. ANOTHER APPLICATION OF DATA PROCESSING EQUIPMENT THAT IS IN THE DEVELOPMENT STAGE IS THE TABULATING AND SUMMARIZING OF THE VARIOUS CONSTRUCTION QUANTITIES OF DETAILED PLANS.
Supplemental Notes: No 157, pp 51-52 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 #: 01410556
Authors: Preston, E SPagination: 9p
Publication Date: 1957
Serial: Media Type: Digital/other
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Highways
Files: TRIS, TRB
Created Date: Jul 28 1994 12:00AM
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