Results and Lessons-Learned from the 2016 Dallas-Ft. Worth New Technology O-D Study
Corresponding Author: Edwin Hard, Texas A&M Transportation Institute
Presented By: Edwin Hard, Texas A&M Transportation Institute
This presentation will be an overview of a new technology O-D study conducted by the Texas A&M Transportation Institute (TTI), Texas Department of Transportation (TxDOT), and the North Central Texas Council of Governments (NCTCOG) in the spring 2016. The study’s scope included collecting, analyzing, and comparing external origin-destination (O-D) data for the 13-county Dallas-Ft. Worth region in Texas using Bluetooth technology provided by TTI, cellular data provided by Airsage, and GPS data provided by INRIX. The study area included 51 external stations. The chief purpose of the study was to compare, where appropriate, the O-D results from cell, GPS, and Bluetooth for benchmarking and validation. The study focused on external-external (E-E) trips, but also provides results on external-internal/internal-external (E-I)/(I-E), internal-internal (I-I), and trip length frequency distribution by technology.
The presentation will cover the study design, data collection and acquisition, and the general processing and analysis methods for each data type. It will present results comparing Bluetooth, cell, and GPS data between E-E trips and E-I/I-E trips as well as between consumer (non-commercial) and commercial/freight categories of the external trip types. The use of cell and GPS for O-D data is still evolving. This presentation will provide findings and conclusions related to which technology is best to use for E-E and E-I/I-E trips, non-commercial versus commercial vehicle categories, and for smaller urban areas verses major metropolitan areas. It will also provide results on the sample penetration rates experienced from each technology and compare the study’s results to the 2014 Tyler external O-D study that used the same methods and technologies.