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Road Safety Audits (RSA)


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APPENDIX A
RSA CASE STUDIES

RSA NUMBER 9

STANDING ROCK SIOUX TRIBE (NORTH AND SOUTH DAKOTA):
RSA OF RESERVATION ROADS

Roads: existing two-lane rural tribal roads

Planned Improvements:
  • paved and gravel roadways (including secondary highways under State jurisdiction)  in rural and low-density urban environments
  • one small bridge
Environment: x urban   suburban x rural
Owner: Standing Rock Sioux Tribe, Bureau of Indian Affairs, North Dakota DOT, South Dakota DOT
Road Safety Audit
Date of RSA: 22-24 May 2005
RSA Stage(s): x design stage   RSA of existing roads
RSA team: staff from the Standing Rock Sioux Tribe, Federal Highway Administration (North Dakota and South Dakota Field Offices), North Dakota DOT, South Dakota DOT, Bureau of Indian Affairs, North Dakota State University, Northern Plains TTAP, and Opus Hamilton

PROJECT BACKGROUND:

The Standing Rock Sioux Tribe (SRST) reservation in North and South Dakota extends over 2.3 million acres, with an extensive rural road network of BIA roads (about 200 miles) and county and state roads (about 1,100 miles). The reservation roads connect the reservation’s communities to each other and to the tribal administrative center in Fort Yates, ND. They also serve through traffic, and provide access to the Tribe’s two casinos on Highway 24 near Fort Yates, ND (Prairie Knights Casino) and Highway 12 near Mobridge, SD (Grand River Casino).

At the time of the RSA, the Standing Rock Sioux Tribe was actively pursuing improvements to transportation infrastructure on the reservation. Under the SRST Transportation Department, the Tribe had embarked on a long-range program to upgrade community transportation facilities, including streets, sidewalks, street lighting, and storm sewers. The financing for this long-range program, which was expected to cost $26.5 million, involved the innovative use of government, tribal, and borrowed funds.

In addition to planning and implementing these improvements, the Tribe maintained its extensive road network using its own funds as well as funding from sources such as the BIA. Maintenance of tribal roads was a sensitive topic, since funding for maintenance involved an extensive government allocation effort that limited the amounts available to reservations. At the same time, road maintenance was viewed as an important responsibility that directly affected tribal efforts to build a cohesive reservation community and promote economic activity. Maintenance of the roads on the SRST reservation was a challenge due to their extent (connecting a population of about 9,000 spread over 850,000 acres) and the impacts of the Northern Plains environment (winter road conditions, frost damage, and variations in the underlying water table). Although the SRST reported that it fully utilized available government funds and its own funds, the RSA team observed multiple maintenance-related issues on reservation roads, which are summarized as Issue 1 in TABLE A.11.

Roads studied during this RSA included ND 24 and Highway 1806 (part of BIA 3), US 12, and community access roads. Typical reservation roadways are shown in FIGURE A.13. The RSA team drove these roads to identify safety issues associated with road geometry, traffic operations, and maintenance. Although bridge inspection is not a usual part of the RSA process, the RSA team was asked to observe possible maintenance issues associated with a bridge on BIA 3 at Four-Mile Creek. RSA findings associated with the bridge were included in the RSA report.

The photo shows BIA 3 at the intersection with ND 24, south of Fort Yates, ND: a two-lane rural road with narrow paved shoulders. The photo shows BIA 3 / Highway 180 in Kenel, SD: a two-lane rural road with gravel shoulders.  The RSA Team is shown at the side of the road.  A pedestrian crossing sign is provided.
BIA3 at intersection with ND24 south of Fort Yates, ND BIA 3 / Hwy 1806 in Kenel, SD
The photo shows US 12 at Grand River Casino, near Mobridge, SD: a three-lane rural road on a gradient, wtih full-width paved shoulders. The photos shows BIA 44 west of Mahto, SD: a two lane rural road with grassy shoulders.
US 12 at Grand River Casino (left), near Mobridge, SD BIA 44 west of Mahto, SD

FIGURE A.13 VIEWS OF RSA SITES (STANDING ROCK SIOUX TRIBE RSA)

KEY RSA FINDINGS AND SUGGESTIONS:

The key findings and suggestions of the RSA are summarized in TABLE A.11.

TABLE A.11 SUMMARY OF SELECTED SAFETY ISSUES AND SUGGESTIONS
STANDING ROCK SIOUX TRIBE RSA
SELECTED SAFETY ISSUE
(Number and Description)
RISK RATING SUGGESTIONS
1 Road Maintenance: Limited maintenance on reservation roads contributes to poor pavement conditions and concern regarding bridge stability. B to D
  • control cracking with sawcut and fill
  • accommodate future overlays
  • bridge inspection and repair
2 Access to Grand River Casino: Drivers turning into and out of the Grand River Casino may interfere with crossing, opposing, and following traffic on US12. D
  • speed reduction
  • improved signing
  • westbound left turn bay
  • access relocation
3 BIA 31 and ND 24 (School Frontage): Driver workload is potentially high near the intersection of BIA 31 and ND 24, which accommodates local, school, and through traffic. B to D
  • no-passing zone
  • crosswalk maintenance
  • enhanced signing
  • turning lanes on ND24
  • improved lighting
  • access consolidation
  • urban cross section
4 BIA 3 and Highway 1806 (Kenel): Vehicle and pedestrian traffic may interfere with through traffic on BIA 3 through Kenel. B to D
  • marked crosswalk
  • regrading
  • urban cross section
  • relocation of grocery store
5 Hwy 1806 and US 12 (Jed’s Landing): Driver workload is potentially high at the intersection, which accommodates high turning volumes and high speeds. C
  • speed reduction
  • review of turning lanes
6 BIA 3 and ND 24: Left-turning vehicles may obstruct through vehicles at highway intersection on a horizontal curve. A
  • left turn bay
 

KEY LESSONS LEARNED:

The RSA team effectively combined disciplines, and included experts with relevant specialist knowledge. The core disciplines that must be represented on any RSA team are traffic operations, geometric design, and road safety. Beyond these core requirements, the Standing Rock RSA team included members with a range of backgrounds and specialties, including State DOT members, a member with specialist knowledge of pavement maintenance issues, and members familiar with issues associated with tribal policies, practices, and conditions. This combination of backgrounds and skills contributed to the Team’s understanding of the issues and constraints unique to this RSA.

See also the discussion of “Key Factors for Success” and “Lessons Learned” in the main text.

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Page last modified on January 29, 2015
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