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 Quick Start Guide offers guidance on how to get started using GIS tools for managing public works assets.
New pavement preservation guidance helps local road agencies review accessible and effective options for preserving the condition of local asphalt pavements.
The guide focuses on the requirements of Minnesota statutes, including the powers they grant to local agencies to issue permits, require quality mapping and expect timely progress.
A practitioner-ready guide for converting severely distressed low-volume paved roads to improved, easily maintained gravel roads. The guide includes decision-making tools and an online webinar for training
An introduction to all aspects of consolidated asset management for smaller departments, from getting started to an overview of software programs, the benefits of life-cycle cost analysis and the need for risk management.
This quick reference guide helps local agencies select appropriate crosswalk treatments based on roadway type, vehicle volumes and posted speed limits.
Researchers showed that cold in-place recycling and full-depth reclamation with chip seals are often more cost-effective than full pavement reconstruction of rural asphalt roads. Check out the research report for other cost-effective alternatives.
A new guidebook, video and handout provide best practices for successful establishment of boulevard turfgrass after road construction.
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.
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.
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.
This Handbook is intended to provide local agencies with information to help maintain the traffic signs on their system of roads. The Handbook identifies maintenance methods, provides an overview of estimated annual maintenance costs and includes a discussion of policy development, conducting engineering studies and a summary of what is known about the effectiveness of traffic signs.
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.