Variability of Hamburg Wheel Tracking Devices

Chowdhury, Arif; Button, Joe W.; Wikander, John P.

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Variability of Hamburg Wheel Tracking Devices

2004-04-01
By Chowdhury, Arif ; Button, Joe W. ; Wikander, John P.

File Language:

English

Details

Creators:

Chowdhury, Arif ; Button, Joe W. ; Wikander, John P.
Corporate Creators:

Texas A&M University System. Texas 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-04/5-4977-01-1
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Implementation: November 2002-February 2004
Corporate Publisher:

Texas. Department of Transportation
Abstract:

The objective of this implementation project was to prepare procurement specifications and purchase three Hamburg Wheel-Track Devices (HWTDs), install them in two different Texas Department of Transportation (TxDOT) laboratories, and provide training to assist the technicians in proper procedures for testing and data analysis. The implementation process included conducting a limited proficiency study of all five of the HWTDs belonging to TxDOT as well as two HWTDs belonging to the Texas Transportation Institute and PaveTex. The proficiency study determined the accuracy and precision of the seven HWTDs. A statistical analysis of the results revealed no significant differences among the seven HWTDs. However, the ability of the statistical models to detect differences between the machines was restricted because of the low number of replications of the experiment. Observations indicate that it may be possible to improve the current TxDOT HWTD data collection technique to improve statistical validity of the measurements.
Format:

PDF
Funding:

5-4977-01
Download URL:

https://rosap.ntl.bts.gov/view/dot/88724/dot_88724_DS1.pdf
File Type:

[PDF - 475.30 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:79e05d38fc84efca4f45da648e86c1fc787f6f111af6810c1b810609a50b3fde6e487fde27a948686c1b7c12153c27d17ea008909748ae741217c5dd37271aca

File Language:

English

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