00939726

Monograph

http://www.trb.org/Publications/Blurbs/161330.aspx

This synthesis report will be of interest to various transportation-related groups around the world involved in collecting positional data with global positioning systems (GPSs) and integrating these data into existing geographic information systems (GISs). The focus is on the major issues that these groups are facing with data collection, data smoothing, and data integration, including identification of inaccurate, bad, or missing data points, and the lack of standard map matching algorithms. It addresses the fact that each application uses its own GPS equipment, GIS database, and internal set of GPS data processing rules, and that information sharing and coordination has been limited. This synthesis was accomplished through a literature review and a survey of the state-of-the-practice activities in GPS data collection, data smoothing, and map matching. This report of the Transportation Research Board provides information on the potential and the problems of integrating GPS data with data from GIS to provide departments of transportation with a powerful set of planning and programming tools. It addresses existing data standards and their applicability, procedures for processing and integrating spatial data, map matching algorithms and protocols, and recent developments in positioning, including cellular technology. The synthesis identifies a six-step method designed to help improve the quality of maps and reduce the severity of problems associated with GPS-GIS integration.

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

Project 20-5 FY 1999
Topic 31-05

English

71 p.

2002

NCHRP Synthesis of Highway Practice

0309069165

Appendices (6) ; Figures (17) ; References (63) ; Tables (1)

Data collection; Geographic information systems; Global Positioning System; Information processing; Literature reviews; Maps; Quality control; Standards; State of the practice; Surveys

Cellular technology; Data integration; Data smoothing; Map matching algorithms; Missing data

Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Mar 11 2003 12:00AM