00984551

Component

https://doi.org/10.3141/1879-13

http://scholar.google.com....+Li&publication_year=2004

A prototype of a location-aware travel guide for pedestrians was designed and implemented with the aid of mobile geographical information systems. Unlike traditional paper maps, the digital travel guide offers a customized user interface and a location-specific travel service. Development was done on a desktop computer, and the essential files subsequently were transferred to a personal digital assistant for field trials. By using the Global Positioning System, the prototype can accurately pinpoint a user's location to a certain tolerance. This detection is performed at specific intervals, and a list of landmarks is furnished to the user through a Visual Basic script-based interactive graphical user interface. The user can obtain comprehensive information on surrounding buildings or sights, in both textual and digital image forms. A novel indexing method built on road segmentation was implemented to increase search efficiency. Experimental results show that this indexing method has made a significant improvement in system response over the exhaustive search method and thereby helps travelers to find the right way and enjoy their trips.

This paper appears in Transportation Research Record No. 1879, Information Systems and Technology.

00984538

English

p. 108-113

2004

Transportation Research Record

0309094747

Figures (8) ; References (4)

Digital maps; Field tests; Geographic information systems; Global Positioning System; Graphical user interfaces; Indexing; Navigation; Pedestrians; Personal digital assistants; Prototypes

Bridges and other structures; Highways; Pedestrians and Bicyclists; Planning and Forecasting; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Jan 13 2005 12:00AM

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