LTPP Information Management System (IMS) Quality Control Checks

Superseded by Sept. 2013 update, available from LTPP Customer Support Service Center available at no charge

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May 2002
Revised August 2003
Revised October 2005
Revised November 2006
Revised December 2007
Revised November 2008
Revised October 2009
Revised October 2010
Revised November 2011
Revised December 2012
Revised September 2013

1    INTRODUCTION

1.1 LTPP Program Overview

During the early 1980s, the Transportation Research Board (TRB) of the National Research Council, under the sponsorship of the Federal Highway Administration (FHWA) and with the cooperation of the American Association of State Highway and Transportation Officials (AASHTO), undertook a Strategic Transportation Research Study (STRS) of the deterioration of the Nation’s highway and bridge infrastructure system. The study recommended that a Strategic Highway Research Program (SHRP) be initiated to focus research and development activities on improving highway transportation. The study report, published in 1984 as TRB Special Report 202, America’s Highways, Accelerating the Search for Innovation, recommended six strategic research areas. The Long-Term Pavement Performance (LTPP) Program was one of these areas. During 1985 and 1986, independent contractors developed detailed research plans for SHRP. The detailed research plans were published in May 1986 as a TRB report entitled Strategic Highway Research Program-Research Plans.

The LTPP program was envisioned as a comprehensive program to satisfy a wide range of pavement information needs. It draws on technical knowledge of pavements currently available and seeks to develop models that will better explain how pavements perform. It also seeks to gain knowledge of the specific effects on pavement performance of various design features, traffic and environment, materials, construction quality, and maintenance practices. As sufficient data become available, analyses are conducted to provide better performance prediction models for use in pavement design and management; better understanding of the effects of many variables on pavement performance; and new techniques for pavement design, construction, and rehabilitation.