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.
The Southeast Chandler Area Plan seeks to pay respect to the sense of place and history embedded in Southeast Chandler while simultaneously; a) supporting the diversity of lifestyles and development preferences of existing and future residents; b) nurturing true community building and stewardship over the unique attributes of the area; and, c) fostering quality development based on sound planning principles and meaningful public involvement.
The updated Chandler General Plan presents instructional guidance for coping with the consequences of approaching build-out. This document is not meant to be read from cover-to-cover in a single sitting. However, a user, whether a citizen appearing at a public hearing for the first time or a long-term City official, should become familiar with the Plan's content. A comprehensive planning view encourages the General Plan user to evaluate change on a Citywide basis, directing progress for the good of the community rather than special interests.
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).