Transportation, law enforcement, and public health organizations are showing growing interest in incorporating the principles of traffic safety culture into their safety programs. As a result, there is new demand for training materials on these topics for engineers, planners, emergency responders, public health professionals, and other practitioners.
Through this project, the Center for Health and Safety Culture will create three safety culture trainings for safety staff. The training modules will cover the basics of safety culture, organizational safety culture and road user safety culture. CHSC will develop supporting materials, such as a facilitator guide, videos, interactive handouts, and assessment tools. These modules will be made available to the Local Technical Assistance Programs (LTAPs) in each state, expanding access to culture-based training throughout the country.
Many state Departments of Transportation (DOTs) have adopted the Toward Zero Deaths (TZD) vision as part of their work towards the elimination of fatal and serious injury crashes. These efforts are facilitated when a DOT has a strong, internal safety culture of its own.
The Center for Health and Safety Culture (CHSC) has initiated a research program to grow a strong safety culture among a cohort of DOTs by providing tools and guidance to assess and transform organizational safety culture to support safety programs and achieve the TZD vision. These resources will include:
A standard measurement tool to assess the safety culture of each participating DOT;
A set of relevant strategies and a process for transforming identified aspects of the safety culture of the DOT;
A range of support services to help guide and support implementation; and
An evaluation of the effectiveness of the implemented transformation process.
CHSC will work with each DOT to develop and implement individualized tools. This project will launch the effort with the North Dakota Department of Transportation, the first DOT to join the cohort study. CHSC will provide research services to NDDOT and administer the NDDOT Safety Culture Training which encourages new resources and novel strategies to work towards the elimination of fatal and serious injury crashes.
For roads with very low traffic volumes, some transportation agencies have found that that these roadways can be maintained more economically and at a higher level of service with an unpaved or granular surface, as compared with attempting to maintain an old paved surface. Through this project, WTI will develop a comprehensive information resource on effective practices for converting severely distressed paved roads to acceptable unpaved surfaces. The guide will be developed based on needs identified in a previous WTI project, NCHRP Synthesis 485 Converting Paved Roads to Unpaved.
Laura Fay, who led the NCHRP Synthesis, will also serve as Principal Investigator for this effort. The main benefit of this project will be the availability of an easy to use guidance document for agencies that operate and maintain low volume roads. The guide will help agencies select candidate roads for conversion, conduct more effective and safer conversions, and communicate with the public on how and why a conversion is taking place.
Additional project information is available on the project page of the WTI website.
The Montana Department of Transportation (MDT) has found concrete-filled steel tube (CFST) piles connected at the top by a concrete pile cap to be a very cost-effective support system for short and medium span bridges. This type of system offers low initial cost, short construction time, low maintenance requirements, and a long service life. While the gravity load performance of these systems is well understood, their strength and ductility under extreme lateral loads (e.g., seismic events) is more difficult to reliably predict using conventional design procedures.
MDT has sponsored previous WTI research to investigate the performance of these systems under extreme lateral loads and to develop appropriate analysis/design procedures. The primary objective of this research, led by Michael Berry, is to further validate/improve MDT’s CFST to concrete pile cap connection design/analysis methodologies, and to ensure the efficacy of these methodologies for a wide variety of potential design configurations. This research has important potential benefits for evaluating and enhancing bridge performance during earthquakes and other seismic events.
Additional information is available on the project page of the WTI website.
A Feasibility Study of a Driverless, Electric Para-Transit System in Rural Areas
PI: Yiyi Wang
Paratransit systems can improve transportation access for disabled, elderly, and other populations that don’t drive or own a personal vehicle; however, in rural areas, providing these services to small populations over long distances can be cost-prohibitive. This project will conduct a feasibility study on a pilot paratransit system operated by driverless, electric vans that connect rural towns. Three research questions will be explored:
• What is likely to be the benefit/cost ratio of an automated paratransit system, compared to that of existing rural transit systems?
• What are community perceptions and attitudes toward autonomous systems in rural areas?
• What are the barriers or incentives of providing a smart, electrical paratransit system in rural areas?
The answers to these questions will help strategically plan smart infrastructure for the rural poor and elderly to improve their quality of life while reducing social and environmental costs. Specifically, it will investigate whether the deployment of autonomous, electrical vans can accommodate unmet transportation needs in rural areas.
This project will be conducted by the Small Urban, Rural, and Tribal Center on Mobility, a federally-authorized University Transportation Center housed at WTI. The research will be led by Principal Investigators Yiyi Wang, Mike Wittie, and Ahmed Al-Kaisy. Updates on the project will be available on the WTI website project page.
Many wildlife crossing structures are designed to create safe passage for large animal species. However, there is also a need to reduce the impacts of roads on small animal species, including terrestrial mammals, amphibians, and reptiles. One approach is to adapt road crossing structures that are designed for other purposes (e.g., drainage structures, bridges across streams or rivers, or livestock crossings) so that they are also suitable for small animal species. Through this project, Co-Principal Investigators Marcel Huijser of WTI and Kari Gunson of Eco-Care International will summarize design criteria for structures that provide safe passage across roads, as well as barriers designed to keep these species groups off the highway and guide them towards safe passage opportunities. The team will set up a central repository with case studies, plan sheets for structures and barriers, and lessons learned. The results of this effort will provide transportation planners, road designers, and road builders with a synthesis of the most current information about how best to provide safe passage across roads for small animals and reduce direct road mortality. Further information is available on the project page on the WTI website.
The Public Lands Transportation Fellows (PLTF) program provides fellowships to outstanding graduates in a transportation-related field to spend eleven months working directly with staff of Federal Land Management Agencies on key visitor transportation issues. The PLTF program began in 2012 and was modeled after the very successful Transportation Scholars program managed by the National Park Foundation (NPF) that serves the National Park Service (NPS). The program, managed at WTI by P.I. Jaime Sullivan, is mutually beneficial for both participants and agencies: recent masters and doctoral graduates gain a unique opportunity for career development and public service, while public land agencies gain staff support to develop transportation solutions that preserve valuable resources and enhance the visitor experience. The 2018 class of fellows will be stationed at the following three refuges:
San Diego National Wildlife Refuge Complex in San Diego, California.
Rocky Mountain Arsenal National Wildlife Refuge Complex near Denver, Colorado.
Detroit River International Wildlife Refuge near Detroit, Michigan.
Laura Fay, David Kack and Natalie Villwock-Witte (PI) recently traveled to the Jasper, Texas area for six meetings related to the Deep East Texas Council of Governments (DETCOG) transportation voucher program. This pilot project will show how transportation vouchers can be used to provide basic mobility to those who have limited options. Meetings were held in Jasper, as well as Ivanhoe, Newton, Pineland and San Augustine. Similar to many rural areas in Montana, people in the DETCOG area often travel 45 miles or so (one way) for groceries, medical care, and other essential services. Currently, this pilot project is focused on those who are 60 years old or older. The long-term vision is to secure additional funding so that those with low incomes or a disability will also be able to use the voucher program.
The pilot program should start in May and will include approximately 25 participants. Demand for the vouchers already exceeds existing funding, so data from the pilot project will be used to reach out to potential funding sources. The WTI staff is supporting the DETCOG staff to ensure that this program can grow and meet the needs in this rural part of Texas. The new program was big news in the City of Ivanhoe – the photo shows the City marquee informing community members about the meeting to discuss the voucher program.
Concrete can be susceptible to expansive reactions between alkalis in the Portland cement and reactive forms of silica in the aggregates, which can ultimately reduce the lifespan of the concrete used in pavements and other structures. When this occurs, it can result in costly repairs or even replacement of infrastructure. While alkali-silica reactivity (ASR) has been documented as an issue in many states, little work has been conducted to determine the presence/potential of ASR in Montana. The primary objectives of the proposed research are to evaluate the potential for ASR in the state of Montana, and to develop a testing protocol for identifying potential reactive aggregates. This research will also identify/document existing ASR damage in the state and investigate the potential underlying geological features that may contribute to the presence of reactive aggregates. Finally, this research will evaluate potential techniques used to mitigate the damaging effects of ASR.
Sponsored by the Montana Department of Transportation (MDT), this research project will provide a better understanding of reactive aggregates (including severity) and a better understanding of potential ASR issues in the state of Montana. This information will be helpful in promoting sustainability and extending the service life of Montana concrete pavements and structures. Principal Investigator Mike Berry is conducting this research in partnership with MDT and the Montana Contractors Association.