Calibrating the Highway Safety Manual Predictive Methods for Texas Highways: Technical Report

Geedipally, Srinivas R.; Dixon, Karen; Wu, Lingtao; Pratt, Michael P.; Avelar, Raul; Das, Subasish; Tsapakis, Ioannis; Lord, Dominique; Saini, Guneet

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Calibrating the Highway Safety Manual Predictive Methods for Texas Highways: Technical Report

2022-12-01
By Geedipally, Srinivas R. ; Dixon, Karen ; Wu, Lingtao

File Language:

English

Details

Creators:

Geedipally, Srinivas R. ; Dixon, Karen ; Wu, Lingtao ; Pratt, Michael P. ; Avelar, Raul ; Das, Subasish ; Tsapakis, Ioannis ; Lord, Dominique ; Saini, Guneet
Corporate Creators:

Texas A&M Transportation Institute
Corporate Contributors:

Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA/TX-23/0-7083-R1
Resource Type:

Tech Report
Geographical Coverage:

Texas;United States
Edition:

September 2020–August 2022
Corporate Publisher:

Texas Department of Transportation. Research and Technology Implementation Office
Description:

The Highway Safety Manual (HSM) contains safety performance functions (SPFs) that are used in project-level decision-making for estimating the average crash frequency by severity level for existing conditions, alternatives to existing conditions, or proposed new roadways. However, SPF calibration is needed because most of the existing HSM SPFs were developed for states other than Texas. In addition, the HSM does not contain predictive models for frontage roads. Texas has a large network of frontage road segments that are part of the freeway system. Also, the ramp models in the HSM are not applicable to Texas due to differences in ramp configurations. Ramps in Texas usually connect the freeway mainline to the adjacent frontage road rather than a ramp terminal that connects directly to the perpendicular road, as is typical in the states used for developing the SPFs in the HSM.
Format:

PDF
Funding:

0-7083
Download URL:

https://rosap.ntl.bts.gov/view/dot/65821/dot_65821_DS1.pdf
File Type:

[PDF - 35.32 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:98fedcf0c8a298c267b4ee38b8c0f1e9a7d12f90454f203e8ddd7e31aa618e569ec164b209e012301822352a27f7107558231885c4657bfd6146d460c5ff6b16

Calibrating the Highway Safety Manual Predictive Methods for Texas Highways [Summary]

The Highway Safety Manual (HSM) contains safety performance functions (SPFs) that are used in project-level decision-making to estimate the average cr ...

Geedipally, Srinivas R.
Calibrating the Highway Safety Manual Predictive Methods for Texas Highways: Technical Report [5-7083-01-R1]

The Highway Safety Manual (HSM) contains safety performance functions (SPFs) that are used in project-level decision-making to estimate the average cr ...

Geedipally, Srinivas R. ;

Pratt, Michael P.

File Language:

English

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