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Test Procedure for Validation of Automated Distress Data

Project Summary

TxDOT currently has several contractors to manual collect distress data over the state highway network at a cost of over $2,000,000 annually. This survey is conducted by driving along the shoulder, in the lane, or in the grass adjacent to the roadway. The survey is labor intensive, takes about four months to complete, and exposes the SUITE) crew as well as the driving public to accident risks. Clearly, the need exists to examine the use of automated systems to collect pavement condition for the department’s pavement management information system PMIS) as well as other roadway geometric information for managing other elements of the state highway infrastructure. This project will develop a performance based specification for automated distress data collections systems, and assist TxDOT in preparing a detailed scope of Work or specifications. To procure equipment and services.

To this end, a three-phase project will be conducted to:

1. Develop a pilot performance-based specification on automated distress systems;

2. Assist TxDOT in preparing a detailed scope of work or specifications to procure equipment and services; and

3. Validate the pilot specification and revise as necessary to deliver the final performance based specification from this project.

AASHTO Pl’ 67 discusses zone cracking, which separates the cracking into five areas, rather than classifying the cracks by type of cracking (alligator, block, etc). Without significant research and changes to TxDOT PMIS methodology, which is not part of this contract, using this portion of the provisional protocol would not result in usable results; therefore, the researchers will not Use this portion of AASHTO PP 67.

Project Number

0-6835

Status

Completed

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