Enhancements to ConnDOT’s Pavement Friction Testing Program

Henault, John W.

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Enhancements to ConnDOT’s Pavement Friction Testing Program

2011-03-01
By Henault, John W.

File Language:

English

Details

Creators:

Henault, John W.
Corporate Creators:

Connecticut. Department of Transportation. Division of Research
Corporate Contributors:

Connecticut. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

CT-2243-F-10-4
Resource Type:

Research Paper
Geographical Coverage:

Connecticut
Corporate Publisher:

Connecticut. Department of Transportation
Abstract:

This report documents the work performed and results obtained for research conducted to enhance ConnDOT's pavement friction testing program. The program was enhanced with the purchase in 2005 of a new Dynatest 1295 Pavement Friction Tester. Upgrades from the previous tester included the addition of a high-speed laser to measure pavement macrotexture, and a global positioning system to track coordinates. A Circular Texture Meter was purchased in 2006 to compare to the high-speed laser. In 2007, the new friction tester was upgraded to a dual-sided system, enabling testing in either wheelpath. Speed gradients for various ConnDOT pavement surfaces were determined, the macrotexture of asphalt pavement designs used in Connecticut were characterized, the use of the International Friction Index was evaluated, and the effects of roadway geometry on friction measurements were studied. Deliverables include new and upgraded equipment, recommendations, tentative guidelines for evaluating friction at high wet accident sites in Connecticut, a procedure for handling friction test requests, and a draft policy statement.
Format:

PDF
Funding:

CT Study No. SPR-2243
Download URL:

https://rosap.ntl.bts.gov/view/dot/62120/dot_62120_DS1.pdf
File Type:

[PDF - 2.12 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:99775be8d96eefd657e82685c5a6b130e7de7383e62866eab86b1c874f8949f5

File Language:

English

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