Toolbox of Countermeasures for Rural Two-Lane Curves [updated], TR-579, October 2013

(2013) Toolbox of Countermeasures for Rural Two-Lane Curves [updated], TR-579, October 2013. Transportation, Department of

pdf
Preview
PDF
IADOT_InTrans_TR-579_rural_two-lane_curves_toolbox_UPDATED_2013-10.pdf

File Size:4MB
pdf
Preview
PDF
rumble_stripes_ii_t2.pdf

File Size:2MB

Abstract

The Federal Highway Administration (FHWA) estimates that 58 percent of roadway fatalities are lane departures, while 40 percent of fatalities are single-vehicle run-off-road (SVROR) crashes. Addressing lane-departure crashes is therefore a priority for national, state, and local roadway agencies. Horizontal curves are of particular interest because they have been correlated with increased crash occurrence. This toolbox was developed to assist agencies address crashes at rural curves. The main objective of this toolbox is to summarize the effectiveness of various known curve countermeasures. While education, enforcement, and policy countermeasures should also be considered, they were not included given the toolbox focuses on roadway-based countermeasures. Furthermore, the toolbox is geared toward rural two-lane curves. The research team identified countermeasures based on their own research, through a survey of the literature, and through discussions with other professionals. Coverage of curve countermeasures in this toolbox is not necessarily comprehensive. For each countermeasure covered, this toolbox includes the following information: description, application, effectiveness, advantages, and disadvantages.

Item Type: Departmental Report
Keywords: Traffic Safety, Countermeasures, Rural highways, Highway curves, countermeasures,crash mitigation,curve safety,curves countermeasure toolbox, rural curves, two lane roads, transportation, DOT, Iowa, roads, Fatalities
Subjects: Transportation
Transportation > Roads and highways
Transportation > Research
Transportation > Design and Construction
ID Code: 15290
Deposited By: Leighton Christiansen
Deposited On: 18 Nov 2013 20:24
Last Modified: 28 Jan 2016 16:56
URI: http://publications.iowa.gov/id/eprint/15290