Using Alternative Technologies to Detect Vehicles at Signalized Intersections

In Minnesota and across the country, the most common traffic signals are those that are actuated by a device embedded in the road that detects the presence of a vehicle at the intersection. While these embedded devices can last for decades, they don’t always detect modern vehicles, such as electric cars, or vulnerable road users, such as bicycles or motorcycles. New research evaluated the performance of video- and radar-based detection systems, which are becoming more readily available, under a variety of Minnesota weather conditions.

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NCITE Webinar: LRRB Mini-Roundabout Guidance

Tuesday, August 6, 10-11 a.m., free to attend

Increasingly, local agencies are opting for mini-roundabouts for some locations instead of traditional roundabouts, which typically require a larger footprint than a standard four-way intersection. Mini-roundabouts are characterized by a small diameter and fully traversable islands (central island and splitter islands).

Join the Apex Engineering Group for a presentation on the Local Road Research Board project, Mini-Roundabout FAQs. Project team members Michael Marti and Zach Heimer with SRF Consulting Group and Jon Pratt with the City of Detroit Lakes will discuss this new guidance.

The guidebook defines mini and compact roundabouts and provides selection criteria on when to use them as well as details regarding the center treatment. The FAQ format provides easy navigation to technical information.

If you have difficulty accessing the meeting, use the meeting ID and passcode:

  • Meeting ID: 251 050 866 163
  • Passcode: tGP6ix

New Project: Comparative Analysis of Grade-Separated Pedestrian Infrastructure and At-grade Treatments

Grade-separated intersection crossings allow pedestrians to cross over or under traffic lanes. Several factors determine whether a specific location is appropriate for a grade-separated crossing, such as volumes of vehicle and pedestrian traffic, number of lanes to cross, and vehicle speed and visibility.

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Crowdsourcing meets transportation planning with bike and pedestrian data counts

Increasing active transportation is an ongoing effort for transportation planners. Biking and walking can help decrease auto dependence, air pollution, and climate change and improve public health. Plus, it can help transportation agencies meet their strategic goals. The challenge? Making good decisions requires good data, and data for walking and biking trips can be hard to find.

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Applying for Grants: Use Data to Tell Your Community’s Story to USDOT

Research done here at Minnesota and elsewhere has done much to define the problems of local communities with missing or declining infrastructure. USDOT offers federal assistance to build and improve that infrastructure, but the grants have to be won.

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TZD Traffic Safety Hotdish: A Roadmap for Traffic Safety Culture Research and the Road Ahead

Wednesday, July 17, 2024  
10:00 – 11:15 a.m. CDT

As states and localities adopt a vision of zero traffic fatalities, greater attention must be given to communication, collaboration, leveraging resources, and applying a systemic approach to traffic safety which requires a change in culture among road users and traffic safety agencies. This change in culture is tied to education, engineering, enforcement, and emergency services.

This free virtual event will highlight the Traffic Safety Culture Research Roadmap, recently released by the National Academies of Sciences, Engineering, and Medicine. The roadmap (Research Report 1091) presents a path forward to promote traffic safety culture among state departments of transportation and other transportation safety agencies.

Dr. Wes Kumfer, who led the creation of the roadmap, will review its development and contents. Jay Otto will share example projects and show how they fit into research on traffic safety culture. Join us to learn how you can identify traffic safety culture research needs and get insights to take back to your own organizational cultures!

The webinar is free to attend, but registration is required. Once you have registered, you will receive an email confirmation with a Zoom link. The link should not be shared with others; it is unique to you.

Rural Needs, Statewide Answers Webinar: Living in the Middle of Everywhere

Wednesday, August 28, 2024
noon–1:00 p.m. CDT

About the Event

The notion that rural residents live “in the middle of nowhere” perpetuates a negative narrative that is not based on the reality of community life. Modern life is complex, as we live, work, shop, and play in a wide region. At the same time, most of our planning is done at a city or county level.

In this webinar, rural sociologist Ben Winchester will discuss this dynamic and its implications for tourism, marketing, transportation planning, resident recruitment, and housing. He will also review an asset-based community development exercise that can help us better understand this web of regional activity as it varies by age and interest.

The webinar is being held as part of CTS’s Rural Needs, Statewide Answers: Improving Transportation for All Communities thematic focus in 2024. 

Speaker

Benjamin Winchester is a rural sociologist with the Department of Community Development at University of Minnesota Extension. Ben has been working both in and for small towns across the Midwest for over 25 years. He conducts applied research on economic, social, and demographic topics surrounding the theme of “rewriting the rural narrative.” He recently received the international Rural Renewal Research Prize in 2021 for this work. Ben lives in St. Cloud, Minnesota, with his wife and two children. 

Registration

This webinar is free to attend, but registration is required. Once you have registered, you will receive an email confirmation with a Zoom link. The link should not be shared with others; it is unique to you.

Please let us know how we can ensure that this webinar is inclusive to you. What accommodations or access needs can we help facilitate? Contact Samantha Hahn-Douville at snhahn@umn.edu when you register to help us provide you with the best access.

If you’re unable to join us for the live broadcast, a recording will be available on the CTS website after the event.

Questions?

Please contact Samantha Hahn-Douville at snhahn@umn.edu

New Project: Long-Term Field Performance Evaluation of Chip Seals

Chip seals are an economical road surface treatment that MnDOT and counties use to enhance existing pavement performance and service life. A thin layer of asphalt emulsion sprayed on the pavement surface and mixed with aggregate chips can address minor pavement distresses and seal the pavement surface to reduce the impacts of further wear.

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New Clear Roads Research: Tools to Maximize Snowplowing Efforts

Reprinted from Clear Roads News, July 3, 2024.

By better understanding the time it takes a snowplow to complete one round of snow clearing and treatment of its assigned route, agencies can better adjust routes and cost-effectively allocate resources for the specific needs of a given service area.

This Clear Roads project developed a methodology for calculating plow cycle times considering road type, road width, weather conditions, traffic volume, and other factors. By using the framework for a map-based visualization tool developed as part of this project, agencies can use their own data to make real-time operational decisions.

Download the final report and two-page briefCalculating Plow Cycle Times from AVL Data, June 2024.

Augmented reality could make work zones safer—if the tech works for the workers

From catching Pokémon in the park to viewing a new IKEA chair in your living room, augmented reality (AR) often seems fun and low stakes. But what if wearable AR technology—such as safety glasses—could deliver warnings to roadway workers when they’re in danger? It’s an exciting possibility that hinges on one key question: Would this type of system meet the needs of workers?

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Minnesota's transportation research blog