Improved Positioning for Fleet Management and Traveler Information

Dailey, Daniel J.; University of Washington. Dept. of Electrical Engineering

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Improved Positioning for Fleet Management and Traveler Information

2008-03-01
By Dailey, Daniel J.

[PDF-1.11 MB]

English

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Details:

Creators:

Dailey, Daniel J.
Corporate Creators:

University of Washington. Dept. of Electrical Engineering
Corporate Contributors:

University of Washington. Transportation Northwest Regional Center X ; United States. Department of Transportation. University Transportation Centers (UTC) Program

University of Washington. Transportation Northwest Regional Center X ; United States. Department of Transportation. University Transportation Centers (UTC) Program Less -
Subject/TRT Terms:

[+]

Advanced Traveler Information Systems Bus Transit Operations Fleet Management Global Positioning System IEEE 802.11 (Standard) Traveler Information And Communication Systems Urban Areas Wireless Communication Systems
Publication/ Report Number:

TNW2008-05
Resource Type:

Research Paper
Geographical Coverage:

Washington
Corporate Publisher:

University of Washington. Transportation Northwest Regional Center X (TransNow)
Abstract:

This proposal investigates the possibilities for transit management to take advantage of the ever increasing wireless/Wi-Fi infrastructure in urban areas. In previous projects with Metro and Sound Transit, the authors have evaluated the use of Global Positioning System (GPS) positioning for fleet management and traveler information. While the GPS positioning worked well for both buses on the regional freeways and trains on regional tracks, it deteriorated when the vehicles entered the dense urban core. This is caused by tall buildings or other structures occluding the GPS satellites. This deviation can be sufficient to place the vehicle on the wrong street and disrupt fleet management and traveler information. An additional source of positioning information is becoming more prevalent by the day, the Wi-Fi hotspot. These act as beacons at known locations. This beacon-like position can be integrated with GPS though optimal filtering.
Format:

PDF
Funding:

DTRS99-G-0010
Collection(s):

University Transportation Centers
Main Document Checksum:

[+]

urn:sha256:dbb4aae21ce79ee85f3be1e2452c309faaf38472e0aebdf48c4e90758d6ee968
Download URL:

https://rosap.ntl.bts.gov/view/dot/60891/dot_60891_DS1.pdf
File Type:

Improved Positioning for Fleet Management and Traveler Information

pdf

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