LRRB Funds Projects to Put New Knowledge Into Practice
The LRRB has funded 10 new research implementation projects that will develop educational products on high-need topics for Minnesota transportation practitioners.
Transportation Research Syntheses
LRRB Announces 2021 Research Projects
The LRRB has funded 18 new research projects that address issues facing the Minnesota transportation community, including impacts of detour routes on local roads and the influence of autonomous vehicles.
LRRB, LTAP Launch Transportation Internship Initiative
The Local Agency Transportation Internship Program (LATIP) is a new initiative designed to connect local agency employers across Minnesota with university students pursuing careers related to transportation.
OPERA Project: Cement-Stabilized Gravel Roads
McLeod County undertook a rehabilitation project of County Road 54 in 2018 using cement-stabilized full-depth reclamation to increase the road strength, along with the application a double chip-seal surface.
Bicycle Facility Implementation – Quick Reference Guide
A companion to the MnDOT Bicycle Facility Design Manual, this guide offers a quick reference to key resources, FAQs, and more related to bicycle facility selection, design, and operations.
Virtual Workshop: Culvert Design for Stream Connectivity and Aquatic Organism Passage
Minnesota LTAP is hosting an online workshop will help culvert designers efficiently and consistently develop public waters culvert projects with respect to aquatic organism passage (AOP) and stream connectivity.
Utility Relocation: A Communication and Coordination Process For Local Governments
Oftentimes roadway projects, whether new construction, reconstruction, or maintenance of an existing facility, involve either temporarily or permanently relocating utilities within the project area. Ensuring that utility relocation is done […]
GIS Tools and Apps – Integration with Asset Management
A Quick Start Guide offers guidance on how to get started using GIS tools for managing public works assets.
OPERA Project: Traffic Signal Preemption for Snowplows
The City of St. Cloud received a $10,000 grant through the Local OPERA Program to evaluate a new level of traffic-signal preemption developed for snowplows and other similar equipment called relative priority preemption (RPP). Relative priority preemption is similar to high-level preemption in that it will force a traffic signal to display green except when emergency vehicles need it.
Virtual Workshop: Current Practices for Lightly Surfaced Roads
A new training developed by the LRRB offers guidance on how to select the right Lightly Surfaced Road Treatment and successfully apply it.
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.
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 […]