Title page for ETD etd-05052000-11410010

Type of Document Master's Thesis
Author Padmanabhan, Vijaybalaji
Author's Email Address pvijayba@vt.edu
URN etd-05052000-11410010
Title Developing an operational procedure to produce digitized route maps using GPS vehicle location data
Degree Master of Science
Department Civil Engineering
Advisory Committee
Advisor Name Title
Lin, Wei-hua Committee Chair
Boroyevich, Dushan Committee Member
Dymond, Randel L. Committee Member
  • arrival time prediction
  • map
  • GPS
  • digitize
Date of Defense 2000-04-26
Availability unrestricted
Advancements in Global Positioning System (GPS) technology now make GPS data collection for transportation studies and other transportation applications a reality. Base map for the application can be obtained by importing the road centerline map into GIS software like AutoCAD Map, or Arc/Info or MapixTM. However, such kinds of Road Centerline maps are not available for all places. Therefore, it may be necessary to collect the data using GPS units. This thesis details the use of GPS technology to produce route maps that can be used to predict arrival time of a bus. This application is particularly useful in rural areas, since the bus headway in a rural area is generally larger than that in an urban area. The information is normally communicated through various interfaces such as internet, cable TV, etc., based on the GPS bus location data. The objective of this thesis is to develop an operational procedure to obtain the digitized route map of any desired interval or link length and to examine the accuracy of the digitized map. The operational procedure involved data collection, data processing, algorithm development and coding to produce the digitized route maps. An algorithm was developed produce the digitized route map from the base map of the route, coded in MATLAB, and can be used to digitize the base map into any desired interval of distance. The accuracy comparison is made to determine the consistency between the digitized route map and the base map.
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  Chapter00a.pdf 55.76 Kb 00:00:15 00:00:07 00:00:06 00:00:03 < 00:00:01
  Chapter00b.pdf 70.30 Kb 00:00:19 00:00:10 00:00:08 00:00:04 < 00:00:01
  Chapter01.pdf 68.46 Kb 00:00:19 00:00:09 00:00:08 00:00:04 < 00:00:01
  Chapter02.pdf 660.02 Kb 00:03:03 00:01:34 00:01:22 00:00:41 00:00:03
  Chapter03.pdf 358.94 Kb 00:01:39 00:00:51 00:00:44 00:00:22 00:00:01
  Chapter04.pdf 156.82 Kb 00:00:43 00:00:22 00:00:19 00:00:09 < 00:00:01
  Chapter05.pdf 64.78 Kb 00:00:17 00:00:09 00:00:08 00:00:04 < 00:00:01
  Chapter06.pdf 46.02 Kb 00:00:12 00:00:06 00:00:05 00:00:02 < 00:00:01

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