Welcome to the MN Transportation Research Collaboration Site

MnDOT Research Services wants your ideas for the Minnesota Local Road Research Board and MnDOT's research and research implementation programs, and this is where we gather them. Register or log in to submit a new idea or vote on the ideas to show your support. (To enter a new idea, click the "Submit New Idea" button, choose your idea's topic area, fill in the online form and click "Submit" at the bottom of the form when you are done.)

Research ideas for MnROAD and the National Road Research Alliance are currently being solicited.

The deadline for new research ideas for this year's MnDOT and LRRB research RFP was May 11, 2018, although ideas can still be submitted for future consideration. Research ideas submitted in spring 2018 have been prioritized, developed into research need statements and posted for university proposals. The proposals will be prioritized and selected for funding in December.

Note that new MnDOT implementation ideas can be submitted at any time for development into an implementation plan and funding request. Your implementation plan will be considered by TRIG at their next scheduled meeting (TRIG is a panel of MnDOT office directors and district engineers.)

Contact us: research.dot@state.mn.us

Questions about this web site? 651-366-3738

Visit our web sites: RESEARCH SERVICES - Minnesota Department of Transportation and LOCAL ROAD RESEARCH BOARD, or related web sites MnDOT research programs and offices and TRB Publications (MnDOT internal web site)

NRRA – Intelligent Construction Technologies

Submitted by (@rebecca.embacher)

Technology Rodeo for BIM for Pavements

Not sure how this would look, but here are some ideas to start brainstorming with everyone: Presentations by industry on innovative technologies available for use by state agencies to support and help kick-off BIM for pavements. Example of topics: automated machine guided milling, automated machine guided paving, electronic ticketing, electronic construction software platforms, electronic construction data transfer, ...more »

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NRRA – Flexible Team

Submitted by (@ben.worel1)

Intelligent Vehicle Impacts on our Roadways

Intelligent Vehicles are coming but what impact will this have on our pavement performance (highway system)? It is expected that initially semi's will platoon in groups following a lead truck on the interstate and US routes. This may reduce the wander in the heavy loads and bring trucks closer together with less time for the pavement system to rebound from the applied loading. It is also safe to assume that flexible ...more »

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NRRA – Rigid Team

Submitted by (@tom.burnham)

Evaluating the performance of polymer overlays on bridges and pavements

MnDOT is often contacted by polymer vendors seeking to get their product on an approved products list. Many states are facing the same issues, and we all end up trying isolated overlays on different bridges before allowing them on an APL. Is there an opportunity to pave a section of MnROAD with various polymer overlays? I understand California has been using these systems on concrete pavement and bridges.

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NRRA – Rigid Team

Submitted by (@zell1mat)

Engineered Dowel and Tie Bars

Most agencies around the country use dowel bars as a means of load transfer for their higher volume concrete pavements. The dowel bars specifications used around the country are more of a standard as opposed to an engineered property of the concrete pavement. Dowels are intended to transfer the load across the joints while minimizing the bearing stresses. With the advent of the ASSHTO ME design process many concrete ...more »

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NRRA – Rigid Team

Submitted by (@zell1mat)

Updated 3U18 for Partial Depth Repairs

MnDOT developed the 3U18 repair mix decades ago for partial depth repairs and the mix has served its purpose well. Several things have changed over those same decades but the mix itself has not. This project would be to investigate alternative cement based mix designs that would still serve the partial depth repair needs while lower the cost by incorporating new products and/or admixtures.

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NRRA – Pavement Maintenance Team

Submitted by (@ben.worel1)

NRRA - Spray on Rejuvenator Test Sections

My idea is to have a rejuvenator experiment and invite all of the spray on rejuvenator producers to get involved for a test section. It would be good to do the experiment in Minnesota and Alabama, like we've done for the preservation study. We would have basically one streach of roadway for the each rejuvenator to treat per the producer's recommendation. The main idea is to have a head to head comparison of the field ...more »

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NRRA – Pavement Maintenance Team

Submitted by (@ben.worel1)

NRRA Spray on Rejuvenator Synthesis

Work with industry and NRRA members to document the products that exist, what has been tried by NRRA members, where test sections have already been developed, and the performance of the test sections. Recommendations can also be made related to any test sections that could be developed for these spray on applications. Test sections could include 1/10 mile sections of a newly paved roadway in the next phase. Note Missouri ...more »

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NRRA – Flexible Team

Submitted by (@ben.worel1)

NRRA - Mix Rejuvenator Test Sections (Phase-II)

Research Study - Suggested by Randy West My idea is to have a rejuvenator experiment and invite all of the mix rejuvenator producers to get involved for a test section. It would be good to do the experiment in Minnesota and Alabama where the performance can be tracked, like we've done for the preservation study. We would have basically one mix design at each location with a RAP content selected by the sponsors and then ...more »

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NRRA – Flexible Team

Submitted by (@ben.worel1)

NRRA - Mix Rejuvenator Lab Testing Needs

What is the best test(s) to be used related to establishing what benefit rejuvenators have on HMA mixtures? NRRA members should hire a consultant/university to work with NRRA members technical advisory panel to collect/organize our collective thoughts on what tests might be useful, look to what has been done elsewhere, and then conduct a laboratory experiment to verify / develop a test for rejuvenators.

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NRRA – Flexible Team

Submitted by (@ben.worel1)

HMA Reflective Cracking Study - HMA over HMA (Phase-I)

Phase-I of this study would be a synthesis of the current practices being used by NRRA state members on what has been tried and researched over the last 15 years. It will also include the direction for possible test sections being built at MnROAD or at other NRRA states. NRRA has established both test sections and a research study of HMA overlays of PCC looking at reflective cracking but currently very little has ...more »

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NRRA – Flexible Team

Submitted by (@ben.worel1)

Thick Lift HMA Paving Layers - Test Sections (Phase-II)

NCAT is working on developing a process to pave thick ~5" HMA lifts that both aid in reducing construction time but also researches the long term pavement effects this might have on performance. NRRA has proposed a Phase-I to collect input from NRRA states but also industry to determine what guidelines should be followed. This Phase-II would build Test Section(s) at MnROAD and could also include satellite state compatible ...more »

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NRRA – Rigid Team

Submitted by (@lscofield)

LTPP SPS-2: Comparing Undowled Pavement Performance to Doweled Pavement Perforamnce

The LTPP SPS-2 experiment included an option to construct an SPS-2A experiment which compared doweled and undowelled pavement test sections. At least two of the remaining ten states constructed State supplemental test sections to address this (North Dakota and Arizona). There is a need to compare/evaluate the performance of these sections to contrast the performance differences. It appears that PaveME may underestimate ...more »

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