The Local Road Research Board publishes a wide range of transportation-related educational materials. For research reports, go here.
Contact Sandy McCully at 651-366-3768 for more information.
A new spreadsheet tool was designed to help local agencies manage their gravel roads. It can be used to track maintenance and construction data, as well as to track costs and optimize spending.
Which specialty warning signs are necessary and effective, and which do more harm than good? The answer may surprise you.
A technical resources website, with posters, fact-sheets and online resources, has been developed for the LRRB by the Minnesota LTAP program.
This spreadsheet-based decision-making tool will help local agencies establish effective maintenance practices to preserve pavement markings on low-traffic volume roads.
Recent research shows that the city of Shoreview was on the right path in 2009 when it took the then-unusual step of installing pervious concrete pavement on the streets of the Woodbridge neighborhood to help control stormwater and pollutant runoff into nearby Lake Owasso.
Carver County staff received a grant through the Local OPERA Program to help purchase a brine-making system and support further research into the viability of using pickle brine in winter maintenance operations.
This guidebook compares the eight most widely used fleet management software tools by Minnesota agencies. It also contains a survey of agencies’ fleet practices and replacement cycles.
This guidebook recommends when to install marked crosswalks and other enhancements at uncontrolled locations based on a number of factors, including the average daily vehicle count, number of pedestrians, number of lanes, and average vehicle speed.
Students can learn more about the field of civil engineering and how to become an engineer in a new video and website produced by the Local Road Research Board.
New guidebook available on base stabilization for new construction and Stabilized Full Depth Reclamation (SFDR) and the selection of suitable nonproprietary stabilization additives for individual specific projects.
A new guidebook provides a best practice approach to addressing citizen requests for common traffic safety concerns.
The documents here provide users who are new to Recycled Asphalt Pavements (RAP) with Minnesota’s specifications, the findings from RAP use surveys in MN and nationwide, national trends, and resources to learn more.
Multi-lane roundabouts can be an effective intersection control and reduce injury crashes if the design and layout is carefully considered. Two LRRB-funded studies have recently been conducted to examine failure to yield and improper lane use violations. The findings are summarized here.
The Enhanced Culvert Inspections Best Practices Guidebook is a primer on common culvert inspection technologies and applications. The manual summarizes the advantages and limitations of each technology and provides best practices when planning for and implementing an enhanced inspection project.
A new user guide provides simple, cost-effective methods for stabilizing locally maintained slopes along roadways in Minnesota. Eight slope stabilization techniques are presented that local government engineers can undertake.
In this video, we debunk three common roundabout myths and prove they are a viable alternative for intersection traffic control.
These resources outline the process for Minnesota public agencies to develop an Americans with Disabilities Act (ADA) Transition Plan for public rights of way.
The Minnesota LRRB has developed a Sign Retro Reflectivity Toolkit to provide local governments,
especially small cities and townships, with guidance and resources to meet FHWA’s sign retroreflectivity deadlines.
The purpose of this guide book is to provide easy-to-use steps for calibrating snowplow sander controllers. It is an experience-based guide that captures tips and techniques learned by experienced calibrators. It helps agencies calibrate their sander controllers so the correct amount of salt, sand or other solid material is applied to the road when treating roads during winter maintenance. The guide also includes calibration forms, and a general discussion about calibration.
This project aimed to develop guidelines, curriculum, and training on the use of best value methods for procurement. The resulting manual promotes a consistent procurement and proposal process for the benefit of both agencies and contractors.