Search Local Road Research Board

Search the LRRB website and research database:

Refine your search:

To find additional research, books, journals, articles, and more access the MnDOT Library.

Help with searching

Sort by:
Results 1 - 10 of 258
Researchers analyzed the safety and mobility of MnDOT's current HOT lanes on I-35W (where vehicles can enter the HOT lane at almost any point) and I-394 (where entry to the HOT lane is much more restricted). Both designs are effective in appropriate ...
Status: Complete
Publish Date: July 01, 2014
Researcher: John Hourdos
Research Report: 2014-23
The recent legalization of recreational marijuana use in Minnesota prompted MnDOTs Office of Traffic Engineering to request this Transportation Research Synthesis (TRS) to gather information about the impacts to traffic safety of such legislation in ...
Status: Complete
Researcher: Christine Kline
Daytime running lights -- generally low-wattage headlights that turn on automatically when a vehicle's ignition is started -- are a safety feature intended to reduce multiple-vehicle crashes during daylight hours by making vehicles more conspicuous ...
Status: Complete
The Local Road Research Board (LRRB) was interested in more information about lighting roundabouts effectively but efficiently to improve pedestrian safety, and more generally in a synthesis of information that could serve as a starting point for ...
Status: Complete
In this project we will explore utilizing C-V2X (cellular vehicle-to-everything) communication technology, augmented by 4G/5G connectivity (and potentially also satellite connectivity such as Starlink, especially in rural areas) and advanced sensing ...
Status: Active
Researcher: Zhi-Li Zhang
Researchers conducted a mail survey of Minnesota households to measure driver attitudes toward traffic safety and three specific risky driving behaviors. Drivers are highly affected by their perceptions of other drivers' attitudes, which suggests ...
Status: Complete
Publish Date: April 15, 2015
Researcher: Nicholas Ward
Research Report: 2015-13
Researchers collected and analyzed data about nighttime light levels at both lighted and unlighted rural intersections and crash rates at those intersections. They found that increased lighting levels reduced nighttime crash rates, with the greatest ...
Status: Complete
Publish Date: January 13, 2015
Researcher: Christopher Edwards
Research Report: 2015-05
The National Highway Traffic Safety Administration has proposed a regulation that all new cars be required to broadcast a basic safety message (BSM) that conveys cars position, speed and acceleration. Such future vehicle-to-vehicle communications ...
Status: Complete
Publish Date: April 19, 2021
Researcher: Michael Levin
Research Report: 2021-08
Since the mid-1990s, the use of Speed Safety Cameras (SSCs), also referred to as Automated Speed Enforcement (ASE), as a speed reduction countermeasure has been growing across the US. Minnesota does not currently permit SSCs by law, but recent ...
Status: Complete
Researcher: Heather Kienitz
A guide for city and county agencies provides clear, recommended procedures for responding to citizen requests for traffic safety measures. Practices for effectively communicating with citizens are described along with methods for evaluating their ...
Status: Complete
Publish Date: December 15, 2017
Researcher: Renae Kuehl
Research Report: 2017RIC05