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Title:

Evaluation of Texas Condition Assessment Program and Recommendations for Improvement
Cover of Evaluation of Texas Condition Assessment Program and Recommendations for Improvement

Accession Number:

01478117

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

The Texas Department of Transportation (TxDOT) uses the Texas Condition Assessment Program (TxCAP) to measure and compare the overall road maintenance conditions among its 25 districts. TxCAP combines data from its three subsystems: the Pavement Management Information System (PMIS), which scores the condition of pavement; the Texas Maintenance Assessment Program (TxMAP), which evaluates roadside conditions; and the Texas Traffic Assessment Program (TxTAP), which assesses the condition of signs, work zones, railroad crossings, and other traffic elements. The scores for each of the subsystems are based on data of different sample sizes, accuracy, and levels of variations. Therefore, whether the use of the current TxCAP system is an effective and consistent means to measure the TxDOT roadway inventory conditions needs to be evaluated. Statistical analyses were carried out to evaluate the system from two aspects: 1) to determine whether the mechanism employed in TxCAP is effective in measuring the maintenance performance of 25 districts statistically, and 2) to determine whether the difference between the TxCAP scores for any two districts is statistically significant in terms of the insufficient sampling of the subsystems. A case study was carried out using sample data collected for the whole state from the year 2008 to 2010. The case study results show that the differences in scores between two districts are statistically significant for some of the districts and insignificant for some other districts. It is therefore recommended that TxDOT either compare the 25 districts by groups/tiers or increase the sample size of the data being collected if it wants to compare the districts as individual ones.

Supplemental Notes:

This paper was sponsored by TRB committee AHD10 Maintenance and Operations Management.

Monograph Accession #:

01470560

Report/Paper Numbers:

13-2850

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Wu, Hui
Zhang, Zhanmin
Qazi, Abdus Shakur

Pagination:

14p

Publication Date:

2013

Conference:

Transportation Research Board 92nd Annual Meeting

Location: Washington DC, United States
Date: 2013-1-13 to 2013-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Geographic Terms:

Texas

Subject Areas:

Highways; Maintenance and Preservation; Planning and Forecasting; I60: Maintenance

Source Data:

Transportation Research Board Annual Meeting 2013 Paper #13-2850

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:35PM