Understanding Bias Emerging big data sources unlike traditional surveys come with their own biases, which could be distinct across space, time and socio-demographics. This is because, these data sources are more of a convenience sample heavily influenced by the purpose of software application generating it, from which it is derived. Thus, it makes them more…
National Performance Management Research Data Set
The FHWA has acquired a national data set (called NPMRDS) of average travel times on the National Highway System for use in its performance measures and management activities. TTI is a part of the NPMRDS project team and provides geospatial data integration (i.e., GIS conflation) services. In particular, TTI conflates selected HPMS attributes onto the…
Pedestrian and Bicyclist Research
TxDOT Pedestrian and Bicyclist Count Data Program TTI has worked with the Texas Department of Transportation (TxDOT) since 2016 to improve the availability and quantity of pedestrian and bicyclist count data in Texas. The most visible product of this work has been a statewide database called the Texas Bicycle and Pedestrian Count Exchange, which is…
Transportation System Management and Operations for Freight
With the emergence of connected and automated vehicle (CAV) telecommunications, TSMO strategies fit right in by making the best use of opportunities to coordinate freight movement and modal infrastructure in highly efficient ways. Some of TTI’s state-of- the-art research capabilities include: CAV Technology Leading CAV technology efforts with the Texas Department of Transportation (TxDOT) as…
Mobility Analysis & System Transportation Efficiency Research
Over the last 25+ years, mobility analysis has changed dramatically and TTI has consistently been at the leading edge, working with sponsor states to improve the practice. Topics of the MASTER study have included evaluating data and data sources, developing new performance measures, refining calculation procedures, conducting sensitivity analyses, exploring target-setting, communicating and visualizing performance…
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…