NEW PROJECT: WTI to Create a Guidebook for Transportation Agencies on Unpaved Roads

Gravel road in rural Montana with mountains in the background
The guidebook will aid agencies in making effective decisions regarding conversion of paved roads to unpaved.

For roads with very low traffic volumes, some transportation agencies have found that that these roadways can be maintained more economically and at a higher level of service with an unpaved or granular surface, as compared with attempting to maintain an old paved surface. Through this project, WTI will develop a comprehensive information resource on effective practices for converting severely distressed paved roads to acceptable unpaved surfaces. The guide will be developed based on needs identified in a previous WTI project, NCHRP Synthesis 485 Converting Paved Roads to Unpaved.

Laura Fay, who led the NCHRP Synthesis, will also serve as Principal Investigator for this effort. The main benefit of this project will be the availability of an easy to use guidance document for agencies that operate and maintain low volume roads. The guide will help agencies select candidate roads for conversion, conduct more effective and safer conversions, and communicate with the public on how and why a conversion is taking place.

Additional project information is available on the project page of the WTI website.

To Pave or Not to Pave?

Web-thumb-screen capture of cracked road surface.WTI Research Scientist Laura Fay was interviewed last week by MINNPOST.com on the topic of local road agencies that choose to unpave roads.  The discussion focused on Laura’s research sponsored by the Transportation Research Board, in which she surveyed local, state, or federal agencies on how they manage low-volume roads.  The survey identified nearly 70 road projects in 27 states in which the road agency chose to convert a road to an unpaved, gravel road instead of re-paving it.  The project will also result in a guidebook to help local officials decide if unpaving a road is safe and cost-effective.  Read the full article here or go to the WTI website for more information about the research project.

Dates Announced for International Conference on Low Volume Roads

WTI will host the 12th Transportation Research Board (TRB) International Conference on Low Volume Roads on September 15-18, 2019 in Kalispell, Montana. Sponsored by TRB, this conference examines new technologies and new techniques in the planning, design, construction, operation, maintenance, and administration of low-volume roads. Panelists will explore case studies and practical solutions to common problems related to all aspects of low-volume roads.  TRB, which is part of the National Academy of Sciences, announced the dates in its November 20 newsletter. For more information, contact Laura Fay at WTI or Nancy Whiting (nwhiting@nas.edu) at TRB.