SHRP 2 Report S2-R26-RR-1: Preservation Approaches for High-Traffic-Volume Roadways documents the state of the practice of preservation treatment on asphalt and concrete pavements. Although the focus of the project was on treatments suitable for application on high-volume roadways, this report also discusses current practices for low-volume roadways. The information presented is derived from a detailed survey of transportation agencies and a review of national and international literature.
In addition, the report provides a general framework for how best practices are identified. Finally, general guidelines were developed for the application of preservation treatments on high-volume roadways.
Report S2-R26-RR-1 is available online as an Adobe PDF document and in hard copy through the TRB bookstore.
Presented as a separate document, Guidelines for the Preservation of High-Traffic-Volume Roadways considers traffic volume, pavement condition, work-zone requirements, environmental conditions, and expected performance.