Performance Evaluation of Arizona's LTPP SPS-6 Project: Strategic Study of Rehabilitation Techniques
As part of the Long Term Pavement Performance (LTPP) Program, the Arizona Department of Transportation constructed 19 Specific Pavement Studies 6 (SPS‐6) test sections on Interstate 40 near Flagstaff. The SPS‐6 project studied the effect of specific rehabilitation treatments on jointed portland cement concrete pavement (JPCP) performance. The test sections had various JPCP surface preparations, including crack and seat, minimum and maximum restoration, rubblization, asphalt concrete (AC) with fabric, and asphalt rubber with conventional AC. Opened to traffic in 1991, the project was monitored at regular intervals until 2002. Surface distress, profile, and deflection data collected throughout the life of the pavement were used to evaluate the performance of various flexible pavement design features, layer configurations, and thickness. This report documents the analyses conducted as well as practical findings and lessons learned that will be of interest to ADOT.
This report consists of management's representations concerning the finances of the City of Mesa. This discussion and analysis is designed to 1) assist the reader in focusing on significant financial issues, 2) provide an overview of the City’s financial activities, 3) identify changes in the City’s financial position, 4) identify any material deviations from the financial plan (the approved annual budget), and 5) identify individual fund issues and concerns.
The Arizona Department of Transportation, through its Multimodal Planning and Communications divisions, collaborated with the town of Queen Creek to conduct a transportation study of the Germann Road corridor. The study, which is funded through the Planning Assistance for Rural Areas (PARA) program, was completed in July 2013.
Under contract HFR-PL-1(31)264, "Concrete Pavement Design and Rehabilitation," a comprehensive data base was created which contains pavement design and construction data, climatic information, traffic data, and condition data for 48 pavement sections. The data base includes projects from jointed concrete pavements (40 sections), prestressed concrete pavements (4 sections), continuousIy reinforced concrete pavements (2 sections), and 3-layer structural rehabilitation pavements (2 sections).