Work zone have long been identified as a potential contributor to traffic fatalities and delays. However, knowledge is scarce on what control/enforcement measures should be implemented, their associated benefits, and drivers' attitude towards these measures. Furthermore, there is insufficient evidence on how the design and positioning of control/enforcement measures influence driver behavior. This study aims to bridge that gap.

maximizing the efficiency of work zones requires a thorough understanding of various vehicle dynamics, driver behavior, and unsafe events that occur near a work zone. This study aims to provide critical insight into the above features by collecting microscopic level vehicle trajectory data and proposing performance measures to quantify safety, mobility, and driver comfort.

To increase the safety of drivers and work zone personnel, TDOT wanted to explore Work Zone Intrusion Alert (WZIA) technologies. WZIA technologies are a set of emerging technologies meant to give highway workers advanced warning when an unauthorized vehicle has entered the work zone. Due to the technology still evolving, there is no existing set of best practices for DOTs to allow them to implement WZIA technologies to mitigate work zone intrusions. TDOT sought recommendations for WZIA implementation and practices by identifying and testing the most promising WZIA products.

Tennessee has a growing tourism industry, that contributes significantly to the state’s economy, but also faces a growing transportation issue that needs to be addressed; congestion in major cities and tourist routes is a growing concern. This research study undertook a detailed analysis of these aspects of the transportation system in Tennessee to provide TDOT with policy level recommendations that would improve current transportation services available to tourists.

Researchers from Indiana University-Purdue University Indianapolis and University of Memphis collaborated on a research project that aimed at studying behavior of electric scooter riders before, during, and after their crashes with vehicles. The research project is funded by Toyota Motor Co.  The study aims to understand the characteristics related to electric scooter crashes and develop methods to improve safety to both electric scooter riders and vehicle drivers.

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