Webinar: Improving Recreational Trail Accessibility with a Volcanic Ash Treatment

Thursday, February 23, 2023, 10:00am to 11:00am PST

OVERVIEW

Recreational trails serve as valuable transportation corridors and support the health of users. Wheelchair accessibility of recreational trails depends on a variety of conditions, including slope, cross-slope, and surface characteristics. This project focused on improving the firmness and stability of a 0.2-mile section of trail that was otherwise accessible. The existing trail surface consisted of loose ¼” off-specification aggregate on native soil. A volcanic ash-Portland cement binder, studied in prior research, was batched, distributed, mixed, wetted, and compacted on site to improve the firmness and stability of the surface resulting in a smoother surface with less rolling resistance. The webinar will present details of the trail conditions, materials, batching, placement, and surface characteristics before and after treatment.

KEY LEARNING OUTCOMES

Attendees will be able to:

  • Describe and differentiate pozzolanic and cementitious behavior
  • Describe how to practically use a raw volcanic ash with little processing as a binder for a soil-cement
  • Measure trail surface firmness and stability using a rotational wheel penetrometer
  • Mobilize small groups to practically treat a recreational trail with a cementitious binder to improve the firmness and stability of the trail surface

THE RESEARCH

This webinar is based on a study funded by the National Institute for Transportation and Communities (...

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Webinar: Rural Gentrification and the Spillover Effect: Integrated Transportation, Housing, and Land Use Challenges and Strategies in Gateway Communities

Thursday, March 16, 2023, 10:00am to 11:00am PDT

OVERVIEW

Small towns and cities near national parks, public lands, and other natural amenities throughout the west are experiencing rapid growth and increased visitation. 

More information coming soon

KEY LEARNING OUTCOMES

Info coming soon

THE RESEARCH

This webinar is based on a study funded by the National Institute for Transportation and Communities (NITC) and conducted at the University of Utah and the University of Arizona. Read more about the research: Rural Gentrification and the Spillover Effect.

SPEAKERS

Philip Stoker, University of Arizona

Philip Stoker is an Assistant Professor of Planning and Landscape Architecture in the College of Architecture, Planning and Landscape Architecture. Philip holds a Ph.D. in Metropolitan... Read more