This report covers the activities that were performed to enhance the current Montana Department of Transportation (MDT) ride specification for flexible pavements. The project team reviewed the MDT ride specification for flexible pavements and compared it with current literature and state of practice. An extensive state of practice survey of other Departments of Transportation (DOTs) was conducted and the results were utilized to provide recommendations to MDT for improving its ride specification. This report provides detailed information on the review of MDT current ride specification, literature review, state of the practice survey, and recommendations for improvements. The recommendations cover the proposed improvements to the current ride specification, tolerances, project classification levels, analysis tools and indices, and methods of acceptance. As part of the recommendations, a series of new documents [i.e. Profiler Operations Manual, Quality Control/Quality Assurance (QC/QA) Plan] have been developed to enhance future profile data collection and analysis. Based on the findings of this project, the project team have revised the document entitled: Method of Sampling and Testing (MT 422) and the document: MDT Ride Specification For Flexible Pavement. An implementation plan has been developed and presented in this report to provide MDT with a road map for implementing the findings of this project.

The Montana Department of Transportation (MDT) conducts research to discover, develop, or extend knowledge needed to operate, maintain and improve the statewide multimodal transportation system. Specific goals include: evaluation and advancement of new technologies, materials and methods; development of design and analysis techniques; and study of current transportation challenges. The purpose of this manual is to provide guidance for the development and management of effective MDT Research Programs. Through the identification of the various research related functions and operational procedures of the MDT, this manual will produce a model of a research management system. The programs, projects, and products generated by the Research Programs, using the management system, are provided for the ultimate benefit of MDT's customers.

Includes table of contents with standard specification section and drawing title, with drawing numbers, abbreviations, and folded drawings.

This comprehensive manual of water supply practices explains the design, selection, specification, installation, transportation, and pressure testing of concrete pressure pipes in potable water service.

TRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, construction, maintenance, and operation of roundabouts. The report also addresses issues that may be useful in helping to explain the trade-offs associated with roundabouts. This report updates the U.S. Federal Highway Administration's Roundabouts: An Informational Guide, based on experience gained in the United States since that guide was published in 2000.