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This report was produced for the Local Road Research Board (LRRB) and provides a summary of the use of recycled asphalt pavement within Minnesota. Included in this report is: (1) A synthesis of a manual produced by the Asphalt Recycling and Reclaiming Association (ARRA) and endorsed by the Federal Highway Administration (FHWA) titled the Basic Asphalt Recycling Manual (BARM). The BARM provides a complete summary of various recycling techniques and the process for conducting a recycling project. (2) A Summary of a survey that was distributed to cities and counties throughout Minnesota. This survey was distributed to gather input on the amount of asphalt recycling done in Minnesota. Survey results are discussed throughout the report with a complete overview in the report appendix.

Report #2 in the Series: Local and Regional Planning, Management, Design and Evaluation of Advanced Transportation Technologies.

The District 3 I-94 and District 6 I-35 Alternate Route Signing Final Report chronicles the process of developing an alternate route system for interstate corridors. Major delays and roadway closures occur along the Interstate system as various incidents occur on the roadway. These incidents require cooperation between MnDOT, Minnesota State Patrol, and local first responders to respond to the scene and manage Interstate traffic until the corridor can be opened. These alternate routes provide guidance to first responders and MnDOT staff should an incident occur. Alternate route systems were developed for the I-94 corridor through District 3 and the I-35 corridor through District 6. The process used in developing these alternate routes is transferable to other corridors throughout the State. This research project includes the route development process and the development of two final deliverables for use by MnDOT Districts and local stakeholders. The process of developing alternate routes required field review exercises and input from the project's Technical Advisory Panel and other local stakeholders. The project resulted in the development of an Alternate Route Operations Guide and a Signing Plan. The Alternate Route Operations Guide is intended to provide a tool for first responders during an incident by providing suggested routes and temporary traffic control with an outline of the necessary actions for implementation. Suggested static signing locations are provided within the Signing Plans developed with the project.

This report deals with methods to repair frost-damaged roadways. Specifically, it contains discussions concerning the mechanics of ground freezing and frost related roadway damage, the environments in which such damage occurs, and measures to evaluate the contributing factors along with recommendations to mitigate them and/or reduce the potential for additional roadway damage. At the end of the report, a worksheet is provided to allow prospective users of this manual to record the results of their work and help them both evaluate prospective repair methods and track their successes.