Crash Modification Factors in Practice - Introduction to Safety Performance Functions

United States. Federal Highway Administration. Office of Safety

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Crash Modification Factors in Practice - Introduction to Safety Performance Functions

2013-02-01
By United States. Federal Highway Administration. Office of Safety

[PDF-200.07 KB]

English

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Details:

Corporate Creators:

United States. Federal Highway Administration. Office of Safety
Contributors:

Scurry, Karen
Subject/TRT Terms:

[+]

Crash Modification Factors Performance Measurement Traffic Safety
Publication/ Report Number:

FHWA-SA-13-016
Resource Type:

Brief
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration. Office of Safety
Abstract:

A safety performance function (SPF) is an equation used to predict the average number of crashes per year at a location as a function of exposure and, in some cases, roadway or intersection characteristics (e.g., number of lanes, traffic control, or median type). For highway segments, exposure is represented by the segment length and annual average daily traffic (AADT) associated with the study section as shown by the sample SPF in Equation 1.
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PDF
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:9ed452f32659a9fbe63500b869bf34242c392697f8269a6d69599b5395ce6eeb
Download URL:

https://rosap.ntl.bts.gov/view/dot/49417/dot_49417_DS1.pdf
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Crash Modification Factors in Practice - Introduction to Safety Performance Functions

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