Visit our web sites: MnDOT Research & Innovation and Local Road Research Board.

2022 MnDOT/LRRB Academic Transportation Research Program

State of the art pier caps study trending idea

I am submitting this idea to be considered as a Research Implementation Idea or any other appropriate research funding program. I was told by Marcus Bekele to use this form as the option for submitting research implementation ideas is currently not working.

Several recent MnDOT pier cap evaluation projects have identified numerous pier caps with deficient load capacities. Common factors these piers include pier designs... more »

Research Proposal Submitted by... Sofia Puerto

List your MnDOT Office,District,City, County, Univ. or Other Michael Baker International

Idea Champion - Who at MnDOT/LRRB? TBD

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

As the truck highway system ages, structures require new ratings based on current standards. Recent pier cap analyses for MnDOT have identified numerous structures below acceptable rating limits. Understanding how many pier caps may have deficient capacity will benefit local budget allocation and maintenance plans.

MnDOT Strategic Priority Innovation & Future Needs, Asset Management, Safety

2022 MnDOT/LRRB Academic Transportation Research Program

Instrumentation and analysis of in-service hinge connection trending idea

I am submitting this idea to be considered as a Research Implementation Idea or any other appropriate research funding program. I was told by Marcus Bekele to use this form as the option for submitting research implementation ideas is currently not working.

In-span hinges are typically found in continuous steel girder bridges adjacent to pier supports near moment inflection points. This detail is typical in continuous... more »

Research Proposal Submitted by... Sofia Puerto

Idea Champion - Who at MnDOT/LRRB? TBD

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

Having simplified procedures and tools for the evaluation of ship-lap connections will permit owners to rapidly assess in-span hinge connections in steel girder bridges. This will reduce the costs of analyzing these connections.

MnDOT Strategic Priority Innovation & Future Needs, Asset Management, Safety

2022 MnDOT/LRRB Academic Transportation Research Program

Identification, analysis, and reclassification of fracture critical bridges trending idea

I am submitting this idea to be considered as a Research Implementation Idea or any other appropriate research funding program. I was told by Marcus Bekele to use this form as the option for submitting research implementation ideas is currently not working.

Fracture critical bridges (FCB) are bridges that contain one or more fracture critical members (FCM). As defined by NBIS 23 CFR § 650.305: a fracture critical member... more »

Research Proposal Submitted by... Sofia Puerto

List your MnDOT Office,District,City, County, Univ. or Other Michael Baker International

Idea Champion - Who at MnDOT/LRRB? TBD

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

Inspection frequencies and costs can be significantly reduced if key fracture critical bridges are reclassified from fracture critical to system or internally redundant bridges.

MnDOT Strategic Priority Innovation & Future Needs, Asset Management, Safety

2022 MnDOT/LRRB Academic Transportation Research Program

Project Phasing and Sequencing Knowledge Retention – A Data Analytics and Natural Language Processing-based Approach trending idea

According to the implementation summary of a completed study, "Learning Guides Preserve Expertise of Retiring Workers," 31% of MnDOT's personnel will be qualified for retirement by 2023, causing a significant loss of knowledge and expertise from highly experienced project engineers and inspectors. While conducting interviews with retiring employees and documenting their knowledge are effective for individual cases, it... more »

Research Proposal Submitted by... Chau Le

List your MnDOT Office,District,City, County, Univ. or Other North Dakota State University

Idea Champion - Who at MnDOT/LRRB? TBD

2022 MnDOT/LRRB Academic Transportation Research Program

Subcontracting Policy and Impacts on Project Performances trending idea

A contractor's extensive use of first-tier and second-tier subcontractors leads to problems during construction, such as fragmentizing responsibilities, increasing difficulties in activity coordination, or complicating work schedules, thereby affecting project outcomes. Aware of these issues, MnDOT currently imposes some limitations on subcontracting. However, research is necessary to evaluate the effectiveness of the... more »

Research Proposal Submitted by... Chau Le

List your MnDOT Office,District,City, County, Univ. or Other North Dakota State University

Idea Champion - Who at MnDOT/LRRB? TBD

2022 MnDOT/LRRB Academic Transportation Research Program

Production Rate Estimation Models for Schedule Review During Construction trending idea

Apart from contract time estimation and determination during project development phases, production rate estimation is also required during construction to help project engineers review and evaluate contractor schedules. However, it is not a simple task, even for experienced engineers. Production rates vary significantly by various factors, such as weather conditions, contractors' resource allocation, construction stages,... more »

Research Proposal Submitted by... Chau Le

List your MnDOT Office,District,City, County, Univ. or Other North Dakota State University

Idea Champion - Who at MnDOT/LRRB? TBD

Refinement

Awaiting Refinement
Implementation

2022 MnDOT/LRRB Academic Transportation Research Program

Assessing the deterioration of pedestrian assets trending idea

Under the Title II of the ADA MnDOT is obligated to keep an inventory of pedestrian assets including sidewalks and curb ramps. MnDOT reports on the compliance of assets each year. Condition rating is one measure of compliance. Condition deterioration of pedestrian assets is not well understood or documented. Research is needed to document how construction materials, design and maintenance impact asset deterioration. Deterioration... more »

Research Proposal Submitted by... Sara Dunlap

List your MnDOT Office,District,City, County, Univ. or Other Central Office - Operations Division - ADA Unit

Idea Champion - Who at MnDOT/LRRB? Kristie Billiar and Todd Grugel

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

Understanding how, why, and at what rate pedestrian assets deteriorate will significantly improve MnDOT's ability to forecast funding needs and will improve project scoping and delivery. There is very little national or local research on this topic. MnDOT and the larger transportation industry will benefit from this project and will provide a resource for all jurisdictions and for other states.

MnDOT Strategic Priority Innovation & Future Needs, Asset Management, Safety

2022 MnDOT/LRRB Academic Transportation Research Program

Delineating separated bicycle lanes for individuals with visual disabilities trending idea

Separated bicycle lanes (SBLs), also known as cycle tracks and protected bike lanes, are exclusive facilities for bicycling that are located within or directly adjacent to a roadway. Corridors with SBLs typically also have sidewalks on both sides for pedestrian use. Some SBLs are located at sidewalk grade. Design guidance suggests that a landscaped or turf area between the SBL and sidewalk are necessary to create a "detectable... more »

Research Proposal Submitted by... Sara Dunlap

List your MnDOT Office,District,City, County, Univ. or Other Central Office - Operations Division - ADA Unit

Idea Champion - Who at MnDOT/LRRB? Kristie Billiar and Hannah Pritchard

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

Separated bike lanes are an important part of a low-stress bicycle network and are being installed in the Twin Cities and Greater Minnesota. Design guidance that suggests the need for a landscaped or turf area between an SBL and sidewalk are intuitive for busy locations where the difference in speeds between bicyclists and pedestrians could lead to crashes. However, the options for how to delineate this boundary in constrained conditions are lacking. And, the prevalence of shared use facilities such as trails and sidepaths suggest that a firm boundary may not always be necessary.

MnDOT Strategic Priority Innovation & Future Needs, Advancing Equity, Safety

MnDOT Transportation Research Implementation Ideas

TALS - Traffic Alert System trending idea

With the rising number of traffic fatalities in the state I often find myself wondering as I drive down the highways in Minnesota, how can we reduce the number of collisions and accidents on our roadways? I believe that a step back to the drawing board with how we alert drivers to a potential issue in front of them outside of their view is necessary.

When I have Google maps navigating me in my car and I notice a red... more »