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Proceedings Paper

Photologging - The West Virginia Experience
Author(s): M. E. LaVoie; T. P. Drue
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Paper Abstract

The West Virginia Department of Highways is responsible for the maintenance and control of traffic on some 30,000 miles of public roads, including almost 6,000 miles of Expressway, Trunkline and Feeder highways. For the most part,'this highway system traverses rugged, constantly changing terrain in rural, lightly populated areas. Due to the vast amount of data required per mile of highway, we have for several years sought methods to automatically record road inventory data. In 1966 we first used a camera mounted inside a survey vehicle to record grade and curvature information from an instrument panel. No roadway photos were taken, only the data display on the instrument panel was filmed. The panel was aircraft surplus and included a ball-bank indicator, gyroscopic compass and altimeter, with an odometer added to provide mile post reference. The recording camera was 16mm and triggered manually one frame at a time. Instrument readings were normally recorded only at intersections and points of horizontal or vertical alignment change. Information from this first "photo-log" was then transferred to straight-line diagrams in the Central Office. Once the State was covered, perpetuation was accomplished by referring to construction plans and use of the camera technique was discontinued.

Paper Details

Date Published: 11 October 1973
PDF: 6 pages
Proc. SPIE 0037, New Developments in Optical Instrumentation: A Problem Solving Tool in Highway and Traffic Engineering, (11 October 1973); doi: 10.1117/12.953733
Show Author Affiliations
M. E. LaVoie, West Virginia Department of Highways (United States)
T. P. Drue, West Virginia Department of Highways (United States)

Published in SPIE Proceedings Vol. 0037:
New Developments in Optical Instrumentation: A Problem Solving Tool in Highway and Traffic Engineering
William T. Baker; A. M. White, Editor(s)

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