Side-Dumping Plow Truck Piloted in Nicollet County
Video demonstration of adaption of a Mack Super Truck from its usual winter snowplow configuration to also haul a much larger side-dumping trailer in summer. Includes fact sheet.
Private: Transportation Research Syntheses
Improving Roadside Turfgrass Establishment
The LRRB has developed a comprehensive online course for turfgrass installers. A website provides guidance to homeowners living near new turfgrass installations.
Pavement Preservation Guidance for Local Agencies
New pavement preservation guidance helps local road agencies review accessible and effective options for preserving the condition of local asphalt pavements.
Best Practices for Managing Utility Congestion Within Rights-of-Way
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.
Guide to Converting Distressed Low-Volume Paved Roads to Unpaved Roads
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
Kuehl Recognized For Transportation Safety Work
Minnesota Toward Zero Deaths has awarded its annual Engineering Star Award to Renae Kuehl, LRRB research implementation and outreach consultant, in recognition of her work on safety-related initiatives such as […]
New Report: Taconite-Based Mixture Shows Further Promise for Repairing Potholes
Researchers have further refined a quick and innovative pothole repair method using taconite mixtures. The recently completed study was funded by the Minnesota Local Road Research Board in collaboration with […]
Study recommends longer sight distances for rural intersections
Using a sophisticated driving simulator, LRRB-sponsored researchers determined that 400 and 600 feet of sight distance is insufficient at rural intersections. Drivers performed much better with 1,000 feet of sight […]
LRRB Develops Design Standards for Unobstructed Sight Lines at Left-Turn Lanes
Positive offset left-turn lanes can significantly reduce crashes by improving left-turning motorists’ visibility of opposing through and right-turning traffic. This is the findings of a recently completed LRRB study, which examined decades of research and reviewed guidance from 23 state DOT road design manuals to develop Minnesota-specific guidelines to improve sight lines at intersections, particularly those of left-turn lanes.
LRRB Names New Chair and Members
The Local Road Research Board thanks outgoing board members Tim Stahl (Jackson County) and Lyndon Robjent (Carver County), who recently completed two, four-year terms of service. The board welcomes new […]
LRRB Sneak Preview at Minnesota’s Transportation Conference
The LRRB is hosting Session #22 on Wednesday, March 4, 2020 from 10:00 – 11:00 a.m. in Meeting Rooms 2-3 at the Saint Paul RiverCentre.
Asset Management Guide Addresses Needs of Local Agencies
The Minnesota Local Road Research Board has published a new guidebook to help local agencies get started on developing a consolidated asset management system. The guide addresses the particular needs of smaller groups to effectively and optimally manage their roadways, buildings, vehicles, equipment and other assets.
Roads & Bridges: Structural fiber choice for thin concrete pavements can have a significant impact on quality
A recently completed research project, funded by the LRRB and MnDOT, is featured in the January 2020 edition of Roads & Bridges.
LRRB Announces 2020 Research Projects
In December, the Minnesota Local Road Research Board met and funded 13 new research projects to address issues facing the Minnesota transportation community, including vehicle-pedestrian crashes and changes in how urban speed limits are set.
LRRB Research Implementation Committee Announces 2020 Projects
The Minnesota Local Road Research Board, through its Research Implementation Committee, has awarded funding to develop new educational and guidance materials in 2020 on nine transportation topics.
Asset Management Guide for Local Agencies
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.
Lightly Surfaced Roads (LSR) Training & Workshop Curriculum
A Light Surface Treatment, also known as a bituminous surface treatment, is a relatively new method for preserving a gravel or dirt road surface. The LRRB developed a half-day training curriculum to help counties and townships select the right treatment and successfully apply it.
Signing for Effective Roundabout Approach Speed Reduction
A recent LRRB project, “Strategies for Effective Roundabout Approach Speed Reduction,” provides the methodology to select, install, and evaluate treatments at different locations. This project had two goals: To analyze […]
System Preservation Guide – A Planning Process for Local Government Management of Transportation Networks
Local transportation agencies are facing severe challenges in keeping roads safe and in good repair. Among those challenges are aging infrastructure, increasing material costs, and stagnant or decreasing funding levels. […]
Autonomous Vehicles – What Should Local Agencies Expect?
Project will develop guidance on preparing for and adapting to connected and automated vehicle (CAV) technology, including policy and infrastructure development. Researchers may develop a local agency repository for CAV resources […]