TTI’s Travel Survey and Passive Data research team are leaders in the integration of passive data from GPS connected vehicle data and Location Based Services (LBS) data with transportation planning practices. The team’s efforts focus on data fusion of these data sets with traditional survey and aggregate data sources. Increasingly machine learning methods are implemented…
Passive O-D Studies and Research
MAG 2018 External Travel Study In 2018 the Travel Survey and Passive Data research team assisted the Maricopa Association of Governments (MAG) with developing external travel data of cars and trucks for the region. This study was MAG’s first use of use passive GPS and Location Based Services (LBS) data for external travel estimation. The…
Support for Urban Mobility Analyses
“Support for Urban Mobility Analyses” (SUMA) is the latest project title for this study. Currently, SUMA sponsors include 16 state DOTs, the District of Columbia DOT and FHWA. Over the years, the project has covered a number of aspects of urban mobility analyses. Tasks of mutual interest to all the study sponsors over the years…
Truck Drivers’ Routing Decisions
Evaluating the Impact of Real-Time Mobility and Travel Time Reliability Information on Truck Drivers’ Routing Decisions Publication: Transportation Research Record: Journal of the Transportation Research Board Authors: Xiaoqiang Kong, William L. Eisele, Yunlong Zhang, and Daren B. H. Cline Abstract The research analyzed 14,538 global positioning system devices recording trips on the I-495 crossing through…
Mobility Analysis Visualization Tools
Congestion Management Process Analysis Tool The Congestion Management Process Analysis Tool (COMPAT) is a web-based product that allows the user access to annual traffic congestion statistics on the majority of roads in an individual Texas metropolitan area. COMPAT is designed to help local agencies such as metropolitan planning organizations monitor traffic congestion on area roadways…
Traffic Congestion & Reliability
Mitigating congestion is a high priority for the Federal Highway Administration, which has established congestion mitigation as a key focus area. This report supports this effort by providing a review of congestion issues and solutions in the United States. The emphasis of the report is on measuring trends in travel time reliability and making travel…
Texas’ 2030 Committee
The 2030 Committee was originally formed in May 2008 by Texas Transportation Commission Chair Deirdre Delisi, at the request of Texas Governor Rick Perry. This volunteer committee of experienced and respected business leaders was initially charged with providing an independent, authoritative assessment of the state’s transportation infrastructure and mobility needs from 2009 to 2030. The…
Mobility Investment Priorities
Traffic congestion in Texas is choking our highways and choking our economy, making it harder to buy what we need and harder to keep or find a job. Congestion in cities not only costs Texans billions in lost time and wasted fuel, but also robs us of time we would rather spend with our family…
Congested Corridors Report
The 2011 Congested Corridors Report is the first nationwide effort to identify reliability problems at specific stretches of highway responsible for significant traffic congestion at different times and different days. Analyses are performed along 328 specific (directional) freeway corridors in the United States. These corridors include many of the worst places for congestion in the…