Safety improvement from edge lines on rural two-lane highways : tech summary.

Sun, Xiaoduan; Louisiana Transportation Research Center

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Safety improvement from edge lines on rural two-lane highways : tech summary.

2012-01-01
By Sun, Xiaoduan

[PDF-133.75 KB]

English

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Details:

Creators:

Sun, Xiaoduan
Corporate Creators:

Louisiana Transportation Research Center
Subject/TRT Terms:

[+]

Highway Traffic Control Road Markings Road Markings--Louisiana Roads--Louisiana--Design And Construction--Safety Measures Rural Highways Rural Roads--Louisiana--Design And Construction Traffic Accidents--Research Traffic Control Devices Traffic Crashes Traffic Safety
Publication/ Report Number:

LTRC Report 487
Resource Type:

Tech Report
Geographical Coverage:

Louisiana
Edition:

Tech summary.
Corporate Publisher:

Louisiana Transportation Research Center
Abstract:

The previous study "Impact of Edge Lines on Safety of Rural Two-Lane Highways" completed in 2005 concluded that,

with edge lines, centralization of a vehicle's position is more apparent during nighttime, which reduces the risk of runoff

-road (ROR) accidents and head-on collisions, and edge line markings generally cause drivers to operate their vehicles

away from the road edge, irrespective of the roadway alignment. Does the changed vehicle lateral position reduce

the frequency of crashes? Answering this question is important to the Louisiana Department of Transportation and

Development (LADOTD) since implementing and maintaining edge lines on narrow two-lane highways require signifi cant

resources from LADOTD. There are more than 40 percent of rural two-lane highways in Louisiana with a pavement width

(excluding shoulders) of less than 22 ft. with no edge lines.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:2d49323b6716c4b9b2e27f2002ed35f87867d4e5d887e7d3081d661bbcde7188
Download URL:

https://rosap.ntl.bts.gov/view/dot/24251/dot_24251_DS1.pdf
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Safety improvement from edge lines on rural two-lane highways : tech summary.

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