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Title:Regional Implementation of Tribal Transportation Safety Program: Yankton Sioux Tribe Roadway Safety Improvement Program
Authors:Debbie S. Shinstine, Khaled Ksaibati, and Dennis Trusty
University:University of Wyoming
Publication Date:Oct 2019
Report #:MPC-19-399.3
Project #:MPC-454
TRID #:01720354
Keywords:crash analysis, crash rates, highway safety, implementation, Indian reservations, methodology, safety programs
Type:Research Report – MPC Publications


Tribal communities recognize the need to improve roadway safety. A five-step methodology has been developed by the Wyoming Technology Transfer Center (WYT2/LTAP) to improve roadway safety on reservations. This methodology was initially implemented on the Wind River Indian Reservation (WRIR), which led to the Wyoming Department of Transportation's funding of three system-wide, low-cost safety improvement projects. Due to the success of the program on the WRIR, tribes across the country have become interested in implementing the program. WYT2/LTAP and the Northern Plains Tribal Technical Assistance Program (NPTTAP) are helping tribes implement this program on their reservations in the Great Plains region, and have developed criteria to identify tribes for participation.

Reservations in North Dakota and South Dakota applied to TTAP to participate, and three tribes were accepted for implementation: the Standing Rock Sioux Tribe (SRST), the Sisseton Wahpeton Oyate Tribe and the Yankton Sioux Tribe (YST). This study describes the implementation on YST.

Many challenges and differences were identified through the analysis, demonstrating that a single procedure would not work for different reservations. Through extensive coordination and collaboration with the tribes and government agencies, WYT2/LTAP, along with the TTAP, centers can provide the technical assistance the tribes need to develop their own road safety improvement program.

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How to Cite

Shinstine, Debbie S., Khaled Ksaibati, and Dennis Trusty. Regional Implementation of Tribal Transportation Safety Program: Yankton Sioux Tribe Roadway Safety Improvement Program, MPC-19-399.3. North Dakota State University - Upper Great Plains Transportation Institute, Fargo: Mountain-Plains Consortium, 2019.

NDSU Dept 2880P.O. Box 6050Fargo, ND 58108-6050