Policy and Planning

Construction Project Traffic Impact Analysis Methodology and DTA Model Validation

MnDOT has been working toward better understanding of traffic impacts and Road User Costs associated with reduced system capacity during construction activities. In an effort to quantify those impacts, a Dynamic Traffic Assignment (DTA) / Mesoscopic Travel demand model was developed within the DynusT/DynuStudio software platform. This model has been useful for quantifying these impacts among various construction phasing ...more »

Submitted by (@jim.henricksen)

Idea Submitted by : Jim Henricksen

List your MnDOT Office,District,City, County, Univ. or Other : Metro District

Idea Champion - Who at MnDOT/LRRB? : Ron Rauchle

Why is this a priority and what are the benefits for the State/County/City? :

There is more emphasis and desire for MnDOT to minimize traffic impacts relating to construction projects placed on system users. To effectively doe this, we need to continue to refine and improve the tools the improve our capabilities of analyzing the trade offs made between minimizing Road Users Costs and Construction Costs. This project could help us move us toward improving our effectiveness in balancing these tow competing goals.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Research

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Traffic and Safety

Enhancement and Integration of the TeTRIS and TICAS Freeway Performance Tools

This project would integrate the TeTRIS and TICAS Freeway Performance Tools into one system. The Traffic Information & Condition Analysis System (TICAS) was developed for the RTMC several years ago to help extract RTMC freeway data and develop performance measures for the metro freeway system. TeTRIS is currently being developed to be able to monitor travel time reliability on metro freeways. This project would combine ...more »

Submitted by (@brian.kary)

Idea Submitted by : Brian Kary

List your MnDOT Office,District,City, County, Univ. or Other : Metro District - RTMC

Idea Champion - Who at MnDOT/LRRB? : Brian Kary

Why is this a priority and what are the benefits for the State/County/City? :

MnDOT is developing new performance measures to track congestion levels on metro freeways. This tool will allow staff to more quickly access traffic data allowing for more in depth analysis into freeway performance. It will also consolidate existing tools into one.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Implementation

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Policy and Planning

Spatial Analysis of Agriculture Supply Chain to Assess Transportation Impacts

Efficient agriculture movement is critical to Minnesota’s economic health. In the past two decades, the agriculture supply chain experienced a number of market, technological, and policy innovations that have directly influenced the way producers and wholesalers navigate their local freight networks. With producers’ reliance on rural and urban roadways projected to grow, so too are concerns for accelerated pavement degradation, ...more »

Submitted by (@lmunnich)

Idea Submitted by : Lee Munnich

List your MnDOT Office,District,City, County, Univ. or Other : University of Minnesota, Humphrey School of Public Affairs

Idea Champion - Who at MnDOT/LRRB? : Jon Huseby, District Engineer, MnDOT District 8 (Willmar)

Why is this a priority and what are the benefits for the State/County/City? :

As rural and urban roads assume a more exaggerated responsibility for connecting agricultural products to the market place, local freight planners are increasingly seeking informed, innovative solutions to address the growing industry’s transportation needs.

Outcomes of this study can inform MnDOT district and strategic freight network investments. Specific potential benefits include:

-identification of trends in specific districts of the state, that can inform local decision making, such as roadway improvement priorities

-identification of statewide trends, that can inform strategic freight investments

-provision of maps than can be used to facilitate a broader understanding of agriculture supply chain and transportation implications, including among the public and policy makers.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Joint MnDOT/LRRB Research

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Materials and Construction

The Purpose and Design of Tying Joints On Stormsewers and Culverts

See Standard Plate 3145. What is the purpose of pipe ties? Does the current design serve the purpose? . Std Plate 3145 has relatively minimal requirements in that it allows a U-bolt, no provision is made for bell of Design 3006 joint, and primer instead of galvanizing is allowed. The Cretex Pipe Tie is similar to the MnDOT Single Connection Tie. It also does no show bell of gasketed pipe joins less than 84” diameter. ...more »

Submitted by (@alan.rindels)

Idea Submitted by : Alan Rindels

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Metro District

Idea Champion - Who at MnDOT/LRRB? : Alan Rindels Metro District and MnDOT Bridge Office???

Why is this a priority and what are the benefits for the State/County/City? :

The current standard plate pipe ties do not work for strorm sewers with gasketed joints which Metro District uses. Stormsewers are observed with the bottom joint rotated out and thus the pipe ties do not appear to be functioning very well. Is it possible a different design will work better?

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Joint MnDOT/LRRB Research

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Bridge and Structures

Unmanned Aircraft Systems (UAS) - Metro District Bridge Inspection Implementation

Drones for bridge inspection research has been completed by MnDOT in multiple phases since 2015. As of summer 2017, Phase III of this research began using the senseFly albris and the Flyability Elios, a collision-tolerant drone more suited to confined spaces such as box girders, culverts, or areas that are difficult to access. Due to the success of this research, MnDOT Metro District purchased the Elios drone to supplement ...more »

Submitted by (@jennifer.wells)

Idea Submitted by : Jennifer Wells

List your MnDOT Office,District,City, County, Univ. or Other : Metro District - Bridge

Idea Champion - Who at MnDOT/LRRB? : Jennifer Wells

Why is this a priority and what are the benefits for the State/County/City? :

Access restrictions to bridges for inspection have been a main issue in the Metro District for decades. The implementation of drones for bridge inspection will allow inspectors to gain access to critical bridge components and document current conditions that otherwise have not been thoroughly documented in the past. With this access gained, quality of bridge inspection data will improve and will also improve safety by reducing traffic impacts.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Implementation

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Bridge and Structures

Lightwieght Architectural Slope Panels

The pavers are 2' x 4' x 3" with a tongue and grove around the edges with a 1" architectural surface. The pavers are made with foam concrete and fibers for reinforcement and weigh less than 80lbs each.

Submitted by (@steven.lanz)

Idea Submitted by : Steven Lanz Jr.

List your MnDOT Office,District,City, County, Univ. or Other : Oakdale Construction Office

Idea Champion - Who at MnDOT/LRRB? : Steven Lanz Jr

Why is this a priority and what are the benefits for the State/County/City? :

The way that slope paving is currently done, the panels are poured in vertical strips and from the top down. With every other one being poured, the material where the contractor is working gets disturbed and never gets recompacted and the rebar doesn't get incorporated into the concrete. With the way that I'm implemting the panels is to place them from the bottom to the top and left to right. Also, you would be able to remove the panels if there is a problem under the panels. It would also take you less time to do a section of slope paving.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Implementation

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Traffic and Safety

Lowrey Tunnel Communications System

When employees are working in the plenum space above the road inside the tunnel they have no ability to communicate with one another which poses a significant risk should an emergency occur inside the tunnel while employees are working. A communications system with radios & repeaters would make work much safer and provide piece of mind for employees while working so they can focus on the task at hand...

Submitted by (@safety.doug)

Idea Submitted by : Doug Thies

List your MnDOT Office,District,City, County, Univ. or Other : Metro Safety Unit

Idea Champion - Who at MnDOT/LRRB? : Doug Thies

Why is this a priority and what are the benefits for the State/County/City? :

A communications system will provide for much improved employee safety while working inside the Lowrey Hill Tunnel...

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Not sure (contact Research Services to discuss)

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Materials and Construction

Cost Effective Left Turn Lane Construction

The addition of left turn lanes on a 2-lane undivided highway greatly improves safety at the intersection. There are many feasible options for widening the pavement to develop the left turn lane. One low-cost option is to saw cut along the existing lane-shoulder line and construct only the new shoulder with the widened section. However, this creates a situation in which thru traffic traverses the longitudinal pavement ...more »

Submitted by (@tim.clyne)

Idea Submitted by : Tim Clyne

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Metro District Materials Office

Idea Champion - Who at MnDOT/LRRB? : Kaare Festvog, MnDOT Metro District Traffic Office

Project Type - MnDOT or LRRB / Research, Implementation or TRS : Transportation Research Synthesis (TRS)

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Maintenance Operations

Implementation of Wet or Soft Soil Crossing Technology

Maintenance and construction operations need to cross and stage over wetlands or low bearing capacity soils to perform necessary state work. Various permits require wetland avoidance or minimization of impacts. Additional environmental commitments include minimizing or preventing soil compaction, preservation of soil function and structure, preservation of the native plant community, preservation of soil habitat for ground ...more »

Submitted by (@dwayne.stenlund)

Idea Submitted by : Scott Bradley

List your MnDOT Office,District,City, County, Univ. or Other : Central Office, St Paul

Idea Champion - Who at MnDOT/LRRB? : Dwayne Stenlund

Why is this a priority and what are the benefits for the State/County/City? :

Priority to allow maintenance to perform all-season work operations and construction to stage within restricted footprint, regardless of equipment type. The benefits are temporary work in wetlands and other soft soils that prevent compaction, allow winter tree removal for endangered bat avoidance, repairs to noise walls and other infrastructure in wet areas. This has statewide benefits for all road authorities for construction and maintenance of the infrastructure, regardless of season and soil type and will enhance financial effectiveness by allowing both work and meeting environmental commitments..

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Implementation

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8 votes
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Traffic and Safety

Implementation of New Guidelines in Tightening Large Anchor Bolts of Supports for Signs & luminaires

To implement the large anchor bolting tightening guidelines and specifications derived from the results of the current research project: "Re-tightening Large Anchor Bolts of Support Structures for Signs and Luminaires", which will be completed by the end of June 2018. This implementation project will include the tasks to generate workshop materials and three to four web-based training videos in anchor bolt tightening ...more »

Submitted by (@jihshya.lin)

Idea Submitted by : Prof. An Chen

List your MnDOT Office,District,City, County, Univ. or Other : Iowa State University

Idea Champion - Who at MnDOT/LRRB? : Jihshya Lin, Josie Tayse, Sue Zarling, Trisha Stefanski, Eric Embacher

Why is this a priority and what are the benefits for the State/County/City? :

The loose nuts in over 19% of large anchor bolts of the overhead sign and HMLT support structures has created MnDOT maintenance and inspection problem. AASHTO and FHWA guidelines allow DOTS to inspect OH supports and HMLT at the frequency of 5 years. With so many loose bolt nuts, it will need almost annual inspection for over 2000 OH signs and almost 500 HMLT. This also causes the public safety concerns. The results from the current research project basically has pin-pointed the causes of the loose nut problems and following the proposed guidelines and specifications in construction and maintenance can help in eliminating or minimizing this kind of problems. This will decrease the needs for more inspections and maintenance work and save MnDOT costs in traffic control, bolt inspection and retightening, and all related work. It will also improve the public safety in the loose bolt nut concerns. All state counties and cities can also be trained and benefited from this.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Implementation

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Materials and Construction

Super Air Meter (SAM) Implementation on Concrete Paving Projects

The SAM will give you both the air content and a SAM number. The SAM number correlates to an air void size and spacing. The SAM measures the size and volume of the air void system in the fresh concrete which gives you great insights into the stability of your air void system as well as the impact on strength before the concrete hardens. The SAM would help eliminate the need to take cores and conduct hardened air tests ...more »

Submitted by (@maria.masten)

Idea Submitted by : Maria Masten/Rob Golish

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT Office of Materials and Road Research/Concrete Engineering Unit

Idea Champion - Who at MnDOT/LRRB? : Maria Masten

Why is this a priority and what are the benefits for the State/County/City? :

MnDOT has been researching through multi-state pooled funds and concrete testing contracts the validity and use of the Super Air Meter on a limited basis. The implementation of the Super Air Meter will verify the quality of the air void system in regards to freeze-thaw durability in the plastic concrete in as little as 10 minutes. This will give the Agency insight at the time of placement as to the long term performance of the concrete pavement.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Implementation

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Policy and Planning

Applying the ride-share business model to support public transit service needs in Greater Minnesota

In Greater Minnesota organizations coordinate volunteer drivers, utilizing their personal autos, who are an important service provider for non-emergency medical trips such as kidney dialysis. Volunteer driver studies conducted by the Minnesota Council on Transportation Access (MCOTA) describe the value of the volunteer drivers in meeting in Greater Minnesota’s transportation needs in the most cost effective manner compared ...more »

Submitted by (@sara.dunlap)

Idea Submitted by : Sara Dunlap

List your MnDOT Office,District,City, County, Univ. or Other : MnDOT - OTAT

Idea Champion - Who at MnDOT/LRRB? : Tim Mitchell

Why is this a priority and what are the benefits for the State/County/City? :

Volunteer drivers are an important part of the transportation network, support public transit services and fill a gap for residents in Greater Minnesota by providing trips that are not cost effective for public transit providers. The number of volunteer drivers is declining for multiple reasons. There is no 'back-up' plan for how to deliver these transit trips. This issue is a high priority as it requires time to both understand the potential solutions and work with drivers to implement the new model.

Project Type - MnDOT or LRRB / Research, Implementation or TRS : MnDOT Implementation

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