Comparison of methods for measuring travel time at Florida freeways and arterials : [summary].
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2014-07-01
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Abstract:In this project, University of Florida researchers
collected field data along several highways to
evaluate travel time measurements from several
sources: STEWARD, BlueTOAD, INRIX, and HERE.
STEWARD (Statewide Transportation Engineering
Warehouse for Archived Regional Data) is a central
repository maintained by the Florida Department
of Transportation (FDOT), which collects data from
FDOT Traffic Management Centers. STEWARD’s flow
and speed data can provide travel times based on
spot measurements. BlueTOAD (Bluetooth Travel-time Origination and Destination) is technology
that detects anonymous Bluetooth signals from
passing vehicles; detection of the same signal by
two widely spaced BlueTOAD units can be used
to obtain travel times. INRIX is a company that
collects traffic information worldwide as the
basis for a number of applications related to road
travel; INRIX can provide real-time or archived
travel time data. HERE, formerly NAVTEQ, is a
product of the communications company Nokia;
HERE brings together a number of mapping
services, including data collection services. HERE
data include real-time data from GPS, smart
phones, and consumer and commercial sources,
using proprietary methods to derive information,
including travel times.
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