Details:

Corporate Creators:
Louisiana Transportation Research Center
Subject/TRT Terms:
[+]
Economic Factors Improvements Intersections Parts Of Roads
Publication/ Report Number:
12-4SA
Resource Type:
Booklet/Pamphlet
Geographical Coverage:
Louisiana
Edition:
Research project capsule.
Corporate Publisher:
Louisiana Transportation Research Center
Abstract:
Intermodal transportation

system planning, design,

improvement, performance

evaluation, or economic

assessments include safety

improvements because they

lower the overall cost of

transportation. State Departments of Transportation (DOTs) are charged with the development

and implementation of Strategic Highway Safety Plans (SHSP) as required by law. SHSPs have

broader impacts on passenger and freight transportation to the impact on the overall cost of the

transportation system. Many states’ SHSPs, as Louisiana’s, include an infrastructure focus area

that addresses the locations of the majority of serious injury and fatal crashes, specifi cally

intersections and roadway departures in the vicinity of curves. The Federal Highway

Administration (FHWA) Highway Safety Improvement Program (HSIP) states, “Intersection

safety is a national, state, and local priority. Intersections represent a disproportionate share of

the safety problem.” As a result, private and public organizations are devoting resources to help

reduce the problem. Louisiana has previously been recognized as a “focus” state for intersections

by the FHWA, which was the result of a number of factors, including a higher than the national

average of crashes at intersections. Subsequently, Louisiana’s SHSP implementation strategy

calls for the “aggressive deployment of low cost safety treatments in a systematic manner based

on both historic data and roadway characteristics.” Many states are at a similar stage of their

deployment of the SHSPs and have the same problems with respect to intersection crashes and

road departure crashes. Thus, evaluating road safety improvements is a common challenge

among all state DOTs. To assess the eff ectiveness of the deployed improvements, a system is

required that includes a data-tracking capability and an analysis tool. Therefore, a decision

support system that incorporates the principles of the recently published AASHTO Highway

Safety Manuel (HSM) is needed to allow a timely collection of road improvement data and the

evaluation of the safety benefi ts of these improvements.


Format:
PDF
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:4a3cc2587f9de66671012def3ccea1388daced78ab80ecf746a5279df2c2d084
Download URL:
https://rosap.ntl.bts.gov/view/dot/25086/dot_25086_DS1.pdf
File Type:

Supporting Files

• No Additional Files

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