The pilot project results have produced
a series of reports which are listed and summarized in the following
(543 KB, 23 pages)
|Phase One Report: Literature And Product Review:
This report examines how GPS technology collects ‘passive’ data on travel behavior and how
this technology is integrated into household travel survey efforts by
(1) conducting a scan of various agencies and organizations that have used GPS technology
in their travel surveys and review the existing literature on their experience;
(2) evaluating the most recent ‘off-the-shelf’ person-based GPS units available, and
(3) researching GPS and GIS software interface and hardware data exchange.
(2.1 MB, 68 pages)
Phase Two Report: GPS Unit Comparison, Field Tests, Market Analysis:
This report presents the findings from the “controlled” test using two “off-the-shelf”
GPS units in how the operate in a highly dense area with urban canyon effect.
The tests were structured to compare the following factors: the ease of use and durability
of the GPS hardware under field test conditions; the ease of installation and application
of the software interface using data collected during the tests; and the analysis of the
output. In addition, an analysis using the 1997/98 Regional Travel Household Interview
Survey data will attempt to identify special population segments for future GPS unit deployment.
(1.90 MB, 53 pages)
Phase Three Report: “Mixed Mode” Data Collection and Identification of Special Population Segment:
This report evaluates the ability of GPS technology to collect data for “mixed mode” travel.
In addition, an analysis using data from the 1997/98 Regional Travel Household Interview Survey
attempts to identify special population segments for future GPS unit deployment.
A brief review of existing modified surveys for GPS data collection effort are examined
to assess the equipment and methodologies used. Also discussed are post processing of GPS
data streams and assessment of the error characteristics of the GPS recordings by human
inspection and mode identification algorithm tests.
(2.5 MB, 53 pages)
|Final Report: This report presents the overall project findings and conclusions as well as the findings of a small GPS travel survey performed with 35 volunteers in November 2008. The volunteers' self-described respondent burden and ease of use of the GPS device are examined, as is the ability for a GPS survey to capture complex transit trip behaviors in the NYMTC region. In addition, the latest literature relating to GPS-only travel surveys is reviewed. The report demonstrates the feasibility of using GPS technology in the NYMTC region with relative ease and no extraordinary costs