Traffic Generators
Product 1: A set of best practices for local government agencies to use in dealing with the construction of large traffic generator, i.e. increased loads on roads, detours, road closings, […]
Minnesota Local Road Research Board
by LRRB
Product 1: A set of best practices for local government agencies to use in dealing with the construction of large traffic generator, i.e. increased loads on roads, detours, road closings, […]
by LRRB
The primary objective of this project is to review existing methods, data, and tools for pavement design, maintenance, and rehabilitation and to evaluate the needs of Mn/DOT and local agencies […]
by LRRB
Document the issues that are perceived by local road authorities to be roadblocks to removing unnecessary signs. For example, roadblocks could include conducting an engineering study, developing policies to help […]
by LRRB
(Making the software more user-friendly) Deflection testing and analysis is routinely used to evaluate the spring load capacity of pavements, and to design structural overlays. The current process used by […]
by LRRB
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.
by LRRB
A national movement and related legislation regarding Complete Streets may have significant impacts on local agencies. This guide, intended to assist local agencies interested in developing their own policy, includes […]
by LRRB
This project will develop and deliver associated End-User Product(s) considering engineering and policy tools as element(s) for a process to revert low volume paved roads back to gravel lending itself […]
by LRRB
In 1993, MN passed a law exempting Implements of Husbandry (IOH) from size, weight and load restrictions. Over the last two decades, as farming practices have changed from family to […]
by LRRB
The use of Recycled Asphalt Pavement (RAP) is allowed and encouraged in the construction of new roadways and pavements in Minnesota. Its use reduces cost and environmental impacts of road […]
by LRRB
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.
by LRRB
This handbook summarizes common snow and ice control tools and serve as an introduction to the field of winter maintenance for operators and managers.
by LRRB
Multi-lane roundabouts can be an effective intersection control and reduce injury crashes if the design and layout is carefully considered. Past experience has indicated that failure to yield and improper […]
by LRRB
This instructional video is meant to help understand the methodology used to develop a spreadsheet tool, as well as how to use it in determining what hours of the day […]
by LRRB
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.
by LRRB
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.
by LRRB
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.
by LRRB
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.
by LRRB
This handbook aims to reduce the number of severe crashes on the state’s highway system by helping agencies design, operate, and maintain their systems of roads and highways. A spinoff from the ongoing County Road Safety Plan efforts, this resource contains traffic safety strategies, sample policies and best practices information to support agencies as they implement their own policies.
by LRRB
In this video, we address common roundabout myths and demonstrate why they are a viable alternative for intersection traffic control.
by LRRB
This video, shot near Thief River Falls, Minnesota, shows a comparison between traditional rumble strip designs and the newer sinusoidal rumble strips (a.k.a. “mumble strips”). Researchers are investigating whether sinusoidal rumble strip designs, which are much quieter, are effective enough to combat drowsy or inattentive driving.