Workshops on using the GPS method to determine curve advisory speeds.

Pratt, Michael P.; Miles, Jeffrey D.; Bonneson, James A.; Texas Transportation Institute

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Workshops on using the GPS method to determine curve advisory speeds.

2009-12-01
By Pratt, Michael P. ; Miles, Jeffrey D. ; Bonneson, James A.

[PDF-771.41 KB]

English

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Creators:

Pratt, Michael P. ; Miles, Jeffrey D. ; Bonneson, James A.

Pratt, Michael P. ; Miles, Jeffrey D. ; Bonneson, James A. Less -
Corporate Creators:

Texas Transportation Institute
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Implementation Office
Subject/TRT Terms:

[+]

Curves In Engineering Geographic Information Systems Global Positioning System Global Positioning System. Highway Curves Motor Vehicle Drivers--Texas--Psychology Motor Vehicles--Texas--Speed Psychology Traffic Signals Traffic Signs Traffic Signs And Signals--Texas
Publication/ Report Number:

FHWA/TX-10/5-5439-01-1
Resource Type:

Tech Report
Geographical Coverage:

Texas
Edition:

Technical report; Sept. 2008-Aug. 2009.
Corporate Publisher:

Texas Transportation Institute
Abstract:

Curve warning signs are intended to improve curve safety by alerting the driver to a change in

geometry that may not be apparent or expected. However, several research projects conducted in the last 20

years have consistently shown that drivers are not responding to curve warning signs or complying with

advisory speed plaques.

A new engineering study method was developed to improve consistency in curve signing and driver

compliance with advisory speeds. This report documents two activities that were conducted to promote

implementation of the new method. One activity is the development of a software program to measure curve

geometry while driving through the curve. The geometric data are then used to determine an appropriate

curve advisory speed and to select effective, curve-related traffic control devices.

The second activity for this project was a series of workshops that described use of the new method.

The workshop provided a mixture of classroom discussion and hands-on training activities for the

participants. The workshop participants generally indicated that they believed the new method would benefit

their districts and looked forward to implementing it. Recommendations for future research in this area were

identified.
Format:

PDF
Funding:

Project 5-5439-01
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:07a8946a9f982b92026710b37043f1e680138fee6c8e0c063240a391d3e76d1a
Download URL:

https://rosap.ntl.bts.gov/view/dot/17462/dot_17462_DS1.pdf
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Workshops on using the GPS method to determine curve advisory speeds.

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