Determine the Feasibility and Methodologies of Using Structural Data from the Traffic Speed Deflectometer in Network- and Project-Level Treatment Decision-Making

Scullion, Tom; Dorsett, Garrett; Liu, Wenting; Texas A&M Transportation Institute

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Determine the Feasibility and Methodologies of Using Structural Data from the Traffic Speed Deflectometer in Network- and Project-Level Treatment Decision-Making

2025-01-01
By Scullion, Tom ; Dorsett, Garrett ; Liu, Wenting

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Details:

Creators:

Scullion, Tom ; Dorsett, Garrett ; Liu, Wenting

Scullion, Tom ; Dorsett, Garrett ; Liu, Wenting Less -
Corporate Creators:

Texas A&M Transportation Institute
Corporate Contributors:

Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration

Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Data Analysis Decision Making Deflection Deflectometers Falling Weight Deflectometers Literature Reviews Pavement Management Systems Pavements Structural Analysis Traffic Speed Traffic Speed Deflectometer Traffic Speed Deflectometer Device TSD TSDD
Publication/ Report Number:

FHWA/TX-25/0-7107-R1
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States

Texas ; United States Less -
Edition:

August 2021–August 2024
Corporate Publisher:

Texas A&M Transportation Institute
Abstract:

The traffic speed deflectometer (TSD) offers TxDOT a highway-speed, nondestructive testing tool, which can significantly assist TxDOT districts with development of their four-year plans. In this project, the TSD was initially compared to the deflections measured by the falling weight deflectometer (FWD). Good correlation was observed in the maximum deflections reported by both devices. However, because the loading methods are significantly different, the resultant shapes of the deflection bowls are also different. To assist with developing TxDOT maintenance plans, the data filters evaluated in this report should be used to classify projects based on structural strength (as measured by the TSD) and surface conditions (e.g., rutting, cracking, etc.). Because of TxDOT’s extensive maintenance program, many roadways may appear to be in reasonable condition but are in fact structurally weak. This information should be provided to TxDOT district teams responsible for developing the four-year plans.
Format:

PDF
Funding:

0-7107
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha-512:a71a1d2723126d88e182bff2f517b179e28a0bcd8a65ac5c41c41122240ee1cd144582afd2dfca2c180d8c088f960fb831751789d5f52a595accbecbbb82ff78
Download URL:

https://rosap.ntl.bts.gov/view/dot/80604/dot_80604_DS1.pdf
File Type:

[PDF-6.92 MB]