The Kentucky Transportation Center
Integrity. Dedication. Innovation. Efficiency. The Kentucky Transportation Center strives To provide a safe, efficient, environmentally sound and fiscally responsible transportation system that delivers economic opportunity and enhances the quality of life in Kentucky. Now is the time for smarter and more rapid infrastructure development, and the Center is committed to providing transformative solutions to the most critical problems facing today’s transportation systems. Growing from a small research division founded in 1941, today The Kentucky Transportation Center is a vibrant hub of applied multidisciplinary transportation research. The Kentucky Transportation Center has built a strong partnership with the Kentucky Transportation Cabinet while continuously growing its client base by collaborating with other transportation agencies across the United States. Spread across 12 program areas housed on the University of Kentucky campus, the Center’s staff enjoys a strong and enduring relationship with the Department of Civil Engineering. The Kentucky Transportation Center’s multidisciplinary focus allows researchers to touch on every dimension of multimodal transportation. As the Center expands, it will continue to deliver practical solutions and disperse knowledge that will benefit how the public experiences and interacts with complex transportation systems.
Director Dr. Joe Crabtree Announces Retirement
KTC’s director, Dr. Joe Crabtree, has announced that he will be retiring March 1st, 2021. Click here to learn more about Joe’s career and his retirement plans.
College of Engineering Staff Excellence Award 2020
Congratulations to Doug Kreis!
As Associate Director of the Kentucky Transportation Center, Doug Kreis not only works hard to expand the impact of KTC’s research, but does so in a loyal, encouraging manner. He has a unique instinct for people and business yet considers each decision carefully. He often gathers our research groups together with our clients to brainstorm ways we can better serve them, thus bringing the Center and the University a broad variety of research opportunities. Although his duties take him all over Kentucky and the U.S. to meet with clients and to develop new partnerships, he stays in constant contact with each of his employees. It is not unusual to receive the answer to a question within minutes of asking. When there are disappointments or grants KTC doesn’t receive, he evaluates what we can do to improve on future efforts and cheers us on with his boisterous sense of humor. Anywhere extra guidance is needed—in a meeting with the Kentucky Transportation Cabinet, at a job site or in one of the state’s transportation districts—he shows up. His management syle is supportive, yet he doesn’t micromanage. He is direct and transparent with his employees and KTC’s partners, as well as generous. He makes sure his employees have the tools and equipment they need to perform at their highest level of productivity.
Evaluation of Guardrail Needs and Update of Guardrail Rating Program
In an attempt to reduce the number of roadway departure crashes, the Kentucky Transportation Cabinet (KYTC) installs roadside barriers such as guardrail. KYTC’s Division of Maintenance is responsible for prioritizing guardrail installations based on available funding and safety concerns. The Cabinet established its guardrail rating program (GRP) in 1989 to identify and prioritize guardrail needs. Despite periodic updates, the existing program no longer aligned with the transportation industry’s safety guidelines and policies. KTC studied national and state guardrail best practices and reviewed AASHTO’s Roadside Design Guide, the Manual for Assessing Safety Hardware, and the Highway Safety Manual to develop a new methodology for prioritizing guardrail installations. Researchers also did high-level reviews of guardrail programs at 23 state transportation agencies. The new GRP model focuses on two main factors: crash frequency and crash severity, with the goal of maximizing safety outcomes for roadway departure crashes. The new model also assigns more weight to clear zone and crash characteristics. KYTC is in the process of adopting the new GRP model to rank prospective guardrail projects. To aid this effort, KTC will provide KYTC personnel and district offices with the revised guardrail survey form so they can collect necessary data, as well as offer training sessions to KYTC personnel that describe the rationale for the new model.
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Kentucky Traffic Safety Data Service (KTSDS)
Kentucky has made efforts to improve access to traffic records databases and tools. Improper use of data can result in poor analytical conclusions, waste of resources, and ultimately injury or even loss of life. There are strategies to convert traffic data into useful information that informs decision makers, consultants, state and local agencies, law enforcement groups, citizens groups, attorneys, and the media. Developing a Kentucky Traffic Safety Data Service (KTSDS) will not only increase the availability of data from the state’s six traffic record systems but will increase end user access to experts who have in-depth knowledge of the databases. When these experts work with end users, they can formulate a data query that satisfies the reason for the request. KTC has developed and will host a free traffic data service that enables end users to access an expert to conduct small studies and get answers to traffic safety problems. The KTSDS website will be marketed to the public, will document all queries, and will offer the results of 10-20 small traffic safety studies. The service eliminates the expense of contract services, allows correct data analysis and thus proper use of the results, and provides public awareness that expert data resources exist. – Traffic & Safety
E-tickets and Advanced Technologies for Efficient Construction Inspection
To reduce paper-based workflows and improve on-site project monitoring, the Kentucky Transportation Cabinet (KYTC) is beginning to experiment with eConstruction technologies. To determine the effectiveness of eConstruction and its impact on efficiency and safety, the Cabinet asked KTC to study their use on two pilot projects. Researchers evaluated the performance of three e-construction technologies: e-ticketing, paver mounted thermal profilers, and intelligent compaction (IC). Through a combination of literature reviews and field data collection, KTC measured the performance of each technique. Researchers found that e-ticketing increased operational efficiency and reduced the amount of time needed to retrieve material tickets. Inspectors reduced their exposure to hazardous jobsite conditions and were able to compare theoretical tonnages to actual tonnages, which helps verify that crews are paving according to specifications. For e-ticketing to be a viable option on future projects, it will be critical to train stakeholders on the technology, confirm that all trucks assigned to a project have GPS transponders, and ensure geofences are set up. Internet accessibility at asphalt plants must be consistent so that all interested parties can access data when needed.