aashto 1998 pavement design software free download

#Aashto 1998 pavement design software free download verification
#Aashto 1998 pavement design software free download series

The partnership on which LTPP was founded in 1987 remained steadfast in support of the program in 1998.

#Aashto 1998 pavement design software free download series

These efforts led to a series of resolutions drafted by several AASHTO committees that resulted in the AASHTO Board of Directors approving additional funding for LTPP for fiscal year (FY) 1999. Concerned that this funding level fell far short of what was needed to effectively conduct LTPP research, the partners worked With the passage of the Transportation Equity Act for the 21st Century (TEA-21), Federal funds available to continue the LTPP program were dramatically reduced. Indeed, 1998 was a productive year for LTPP. And to help engineers, researchers, and others stay abreast of this new information, FHWA published several LTPP TechBriefs-summaries of LTPP's recent research that concisely report research findings and how they will affect current practices. Fourteen reports documenting these findings were published by FHWA in 1998. Findings from these projects will help highway managers develop more effective traffic-monitoring schemes and will guide the design and construction of long-lived and cost-effective pavements. Several data analysis projects were also completed by FHWA in 1998. LTPP also launched the next stage of its Data Resolution effort, which resulted in a 20-percent increase in the quantity of releasable data from Pavement engineers and managers can use these products on the job to help them make decisions that lead to more cost-effective and better performing pavements. LTPP introduced several new products, including DataPave and LTPPBind. Perhaps, most importantly, a strong partnership has been forged - a partnership in which the States and Provinces, the American Association of State Highway and Transportation Officials (AASHTO), the Canadian Strategic Highway Research Program (C-SHRP), the Transportation Research Board (TRB), and the Federal Highway Administration (FHWA) all play a critical role in helping

#Aashto 1998 pavement design software free download verification

Indeed, the data collected from the LTPP experiment over the past 10 years will be used for the evaluation and verification of the 2002 Guide for the Design of New and Rehabilitated Pavement Structures. Analysis of the data has enabled the verification of critical pavement design, construction, and rehabilitation parameters.

Data from the experiments have been collected and housed in a national data base-the largest and most comprehensive of its kind in the world. The program was defined and structured, and the experiments were designed and built. Recognizing the need for an extensive long-term program of research into pavement performance, these agencies outlined a work plan, invested funds, and provided staff support to get the program rolling.Īs the milestone chart shows, a lot has happened since 1987. The idea originated with State highway agencies across the Nation that needed to repair and replace a considerable amount of pavement due to the stress of increasing traffic loads and volume. When the program was initiated in 1987 by the Strategic Highway Research Program (SHRP), it was merely a vision, an idea: To create a comprehensive 20-year study of pavements that would provide the highway community with the information it needed to design, build, and maintain cost-effective and long-lived roads. These answers can help highway engineers not only design longer lasting roads, but also protect the Nation's $30-billion-per-year investment in building and maintaining The Long-Term Pavement Performance (LTPP) program is designed to provide answers to how and why pavements perform as they do. LTPP data used for development and verification of AASHTO Unanimously approves additional funding for LTPP for FY99.Ĭompletion of Data Resolution Effort. Transportation Equity Act for the 21st Century (TEA-21) reduces federalįunding available to LTPP program. Last phase of Data Resolution effort initiated. Release of LTPP products: DataPave, LTPPBind, Rigid Pavement Design Improved design procedures for jointed concrete pavements. LTPP Program Improvement Subcommittee launches Data Resolution effort.įHWA-LTPP analysis reports published. TRB-LTPP CommitteeĮstablishes the LTPP Program Improvement Subcommittee. FHWA LTPP analysisįHWA-LTPP product implementation efforts launched via Product PreviewĪnd the appointment of a formal implementation team. Research phase of SHRPĮnds, day-to-day management of LTPP is transitioned to FHWA. ISTEA provides funds for continuation of LTPP. First public release of data from LTPP data base.