00662863

Component

http://onlinepubs.trb.org...trr/1994/1429/1429-006.pdf

https://scholar.google.co...ndly&publication_year=1994

Global positioning system (GPS) units are fast becoming powerful tools for collecting data for use with geographic information systems (GISs). The data collection process for a sign inventory conducted by Lee Engineering in Washington, D.C., is described. In the conduct of the sign inventory project, GPS was used where possible. However, the GPS was determined not to be the best method of data collection in all instances. In sections of the study area near the downtown core, taller buildings effectively blocked satellite signals. In these areas GPS collection was set aside for a more manual method of locating sign positions using a measuring wheel. Data collection efforts for the sign inventory using GPS typically required more data collection time; however, the data were quickly and easily exported to a compatible GIS format. Conversely, data collection using manual methods minimized data collection time but required much more effort to enter into the GIS data base. The collection of data using both GPS techniques and manual techniques allows for comparison of both techniques to determine which was more cost-effective.

This paper appears in Transportation Research Record No. 1429, Multimodal Priority Setting and Application of Geographic Information Systems. 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

01403268

English

p. 36-39

1994

Transportation Research Record

0309055075

Figures (1) ; Tables (1)

Alternatives analysis; Cost effectiveness; Data collection; Geographic information systems; Global Positioning System; Inventory; Manual control; Traffic signs

Manual methods

Administration and Management; Freight Transportation; Highways; I10: Economics and Administration

TRIS, TRB, ATRI

Jul 20 1994 12:00AM

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