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CTIP Publications

Project Development

Report Cover: An Integrated Approach to Sustainable Roadside Design and Restoration (2013)

An Integrated Approach to Sustainable Roadside Design and Restoration (2013)

The roadside represents the interface between the roadway and the surrounding environment, and plays an important role in protecting the larger ecosystem. Roadsides are dynamic environments that require unique treatments and restoration approaches. This guide presents an integrated and holistic approach to incorporating sustainable solutions into disciplines such as hydraulic, geotechnical, aesthetics and vegetation, among others.

Report Cover: Wildlife Crossing Structure Handbook Design and Evaluation in North America (2011)

Wildlife Crossing Structure Handbook Design and Evaluation in North America (2011)

This handbook provides numerous solutions to wildlife-vehicle interactions by offering effective and safe wildlife crossing examples. Key design and ecological criteria, construction and maintenance guidelines, and effective monitoring techniques are shown and described in this handbook's practical application examples called Hot Sheets.

Construction

Report Cover: Placement of Warm Mix Asphalt on the East Entrance Road of Yellowstone National Park (2009)

Placement of Warm Mix Asphalt on the East Entrance Road of Yellowstone National Park (2009)

Collaborative effort between agency and contractors to evaluate the viability of warm mix technology as a standard construction practice. The demonstration evaluated two different WMA technologies (Advera and Sasobit) on a construction project on the East Entrance Road of Yellowstone National Park.

Report Cover:  Best Management Practices for Chemical Treatment Systems for Construction Stormwater and Dewatering (2009)

Best Management Practices for Chemical Treatment Systems for Construction Stormwater and Dewatering (2009)

Chemical treatment systems (CTS) are implemented in areas where traditional, physical erosion and sediment control practices will not meet water quality goals for construction site runoff. This report provides a technically credible basis for best management practices for the use of CTS for turbidity reduction on road construction projects and identifies the most important variables to address when selecting chemical treatment best management practices for a particular site.

Geotechnical

Report Cover: Context Sensitive Rock Slope Design Solutions (2011)

Context Sensitive Rock Slope Design Solutions (2011)

Context sensitive designs in transportation are key to developing facilities that fit within the engineered setting, preserving scenic, aesthetic, historic and environmental resources while maintaining motorist safety and mobility. This report provides design, construction, and maintenance solutions for rock slope excavation, stabilization, and mitigation in context sensitive regions. It addresses state-of-the-art and state-of-practice technologies for the evaluation, design, and construction of context sensitive rock slopes.

Report Cover: Rockery Design and Construction Guidelines (2006)

Rockery Design and Construction Guidelines (2006)

Rockeries consist of earth retaining and/or protection structures comprised of interlocking, dry-stacked rocks without mortar or steel reinforcement. The report provides a rational design methodology, which evaluates rockery stability as a function of the rockery geometry (height, base width, and batter), rock properties and placement, and lateral pressure imposed by the backfill materials.

Unpaved Road Dust Management

Report Cover: Unpaved Road Dust Management, A Successful Practitioner's Handbook (2013)

Unpaved Road Dust Management, A Successful Practitioner's Handbook (2013)

This handbook provides broad programmatic aspects of unpaved road management. It is based on observations made during a national scan tour and provides useful and insightful excerpts of real world examples and includes practical how-to instructions for determining what type of treatment may be needed for different situations.

Report Cover: Unpaved Road Chemical Treatments State of the Practice Survey (2013)

Unpaved Road Chemical Treatments State of the Practice Survey (2013)

This report documents survey results regarding the state of the practice of using chemical treatments on unpaved roads. It provides insights into road manager choices and challenges.

Traffic Monitoring

Report Cover: Traffic Monitoring: A Guidebook (2010)

Traffic Monitoring: A Guidebook (2010)

Traffic Monitoring: A Guidebook discusses different approaches to traffic monitoring, and guidance on making decisions based on the quality of the traffic data being collected and how well that traffic data reflects the actual events that are occurring.

Report Cover: Traffic Monitoring in Recreational Areas (2010)

Traffic Monitoring in Recreational Areas (2010)

Traffic monitoring in recreational areas is often challenged by distinct traffic and roadway characteristics and the multitude of agencies responsible for the management of Federal lands and/or the collection of supporting traffic data. These challenges are exacerbated by a lack of consistent procedural guidance; existing national traffic monitoring guidelines lack sufficient direction and detail for recreational travel. Key findings of a literature review, targeted surveys, and a workshop are summarized.

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