The Local Road Research Board publishes a wide range of transportation-related educational materials. Our most recent and popular guidebooks, manuals and courses are available below. For all research reports, go here.
Contact our staff at firstname.lastname@example.org for more information.
Pedestrian Crossings: Uncontrolled Locations
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 Video, Website Invite Kids to Explore World of Civil Engineering
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.
Base Stabilization Guidance and Additive Selection for Pavement Design and Rehabilitation
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.
Traffic Sign Maintenance/Management Handbook
The handbook is intended to guide local governments about recommended sign maintenance methods that will help them meet FHWA’s adopted retroreflectivity performance measures and implementation deadlines.
Addressing Citizen Requests For Traffic Safety Concerns
A new guidebook provides a best practice approach to addressing citizen requests for common traffic safety concerns.
Synopsis of Recycled Asphalt Pavement (RAP) Material
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.
Thinking About Building A Multi-Lane Roundabout?
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.
Enhanced Culvert Inspections Best Practices Guidebook
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.
Slope Stabilization Guide for Local Engineers
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.
Roundabout Myths (3-myth version)
In this video, we debunk three common roundabout myths and prove they are a viable alternative for intersection traffic control.
ADA Transition Plan for Public Rights of Way
These resources outline the process for Minnesota public agencies to develop an Americans with Disabilities Act (ADA) Transition Plan for public rights of way.
Snow & Ice Calibration Manual and Training
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.
Best Value Procurement Development
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.
Sign Retroreflectivity: A Minnesota Toolkit
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.
Intersection Safety Technologies
This guidebook is intended to help engineers select and deploy LED stop signs and ICWS at STOP-controlled intersections. These safety strategies should be included for consideration along with other safety improvements detailed in the TEM and Traffic Safety Fundamentals Handbook.
Snow & Ice Control Guidebook
This handbook summarizes common snow and ice control tools and serve as an introduction to the field of winter maintenance for operators and managers.
Minnesota Research Test Section Tracking
The purpose of this Web tool is to assist the engineering community in the design of hot mix asphalt (HMA) pavements. The system archives information for others to build upon with the use of other test sections or performance or material testing databases being developed within the state.
Heavy Truck Impact Calculator
This Excel-based tool calculates the impact of a variety of heavy vehicles on local asphalt roads. The tool will help local agencies make informed decisions when developments such as construction, distribution centers or hauling routes create an unexpected increase in heavy vehicle traffic on a temporary or permanent basis, and it will aid in planning if these traffic increases can be predicted.
Training Module for Pavement
Over a period of many years, LRRB and FHWA Investigations have produced information relating to selecting the most effective Pavement Rehabilitation Strategies. In addition to these efforts, the FHWA has produced training modules incorporating Pavement Rehabilitation Selection methods. The objective of this task was to synthesize these efforts and develop a training module summarizing the best practices suitable for use by local agencies in Minnesota.
Implementation of Pavement Management in Minnesota
This resource will help local agencies without a Pavement Management System to evaluate, select, and justify the purchase and operational costs of a PMS; additionally, it will help local agencies who have a PMS to better use and enhance their capabilities.