Analysis of Policies for Safety Improvements on Low-volume Rural Roadways
Midwest Transportation Center, 1994 - Low-volume roads - 49 pages
In order to determine the adequacy with which safety problems on low-volume rural roadways were addressed by the four states of Federal Region VII (Iowa, Kansas, Missouri, and Nebraska), a review was made of the states' safety policies. After reviewing literature dealing with the identification of hazardous locations, evaluation methodologies, and system-wide safety improvements, a survey of the states' safety policies was conducted. An official from each state was questioned about the various aspects and procedures dealing with safety improvements. After analyzing and comparing the remarkably diverse policies, recommendations were made in the form of a model safety program. This program included special modifications that would help remediate hazards on low-volume rural roadways. Especially encouraged is a system-wide approach to improvement which would cover all parts of the highway system, not just urban and high-volume roadways.
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3R design 3R projects 3R standards accident cost reporting accident data accident experience accident frequency summary accident history accident potential accident rate accident severity B/C ratio beneﬁt concems cost ﬁgures cost reporting thresholds cost-effectiveness Countermeasure Evaluation curve database deﬁciencies design standards difﬁculty in identifying district ofﬁce driver error dynamic programming EPDO erratic maneuvers evidence of driver exposure measures Federal Highway Administration FHWA ﬁeld review funding guardrail hazard index highway safety improvement identifying hazardous locations intersections Iowa Iowa State University Kansas KDOT limited by under-reporting location’s low-volume locations low-volume roads low-volume roadways low-volume rural roadways method Missouri modiﬁcations NDOR Nebraska pavement policies predictor of hazard raised pavement marker ranking resurfacing roadside safety improvement program safety improvement projects safety projects selection sight distance signiﬁcant speed changes/mile state’s surrogate system-wide approach System-wide Safety Improvements thresholds among agencies trafﬁc demand trafﬁc exposures Trafﬁc Safety trafﬁc volume University of Nebraska-Lincoln variability in accident