(@chris.dedene)

Materials and Construction

Bituminous Underseal on Local Roadways

The City of Minneapolis is constructing a test section of a bituminous underseal in 2019. The section is broken into three 660-foot segments. The goal of this research is to monitor the performance of the test sections and determine the benefit, if any, gained from the application of the bituminous underseal. The appeal of a bituminous underseal is it combines a chip seal with a mill-and-overlay. Both techniques are ...more »

Voting

1 vote
1 up votes
0 down votes
(@dcarivea)

Environment

Vegetation management practices to enhance roadside pollinator habitat

Pollinators such as native bees, including the federally-endangered rusty-patch bumble bee (Bombus affinis), and Monarch butterflies are at risk due to the loss of native habitats from increasing development, intensive agricultural practices, and greater use of pesticides. Roadside habitats, in particular, have grown in importance as they can provide habitat and act as migratory corridors. The objective of this project ...more »

Voting

19 votes
19 up votes
0 down votes
(@chris.berrens)

Policy and Planning

Developing Micromobility Management Tools through User Fees

Micromobility (electric scooters, electric bikes, etc.) services quite literally arrived overnight on Minnesota streets in 2018. While, these services offer many benefits to the transportation system, they also bring a number of challenges that need to be examined. Notable issues include addressing the operational needs, unique infrastructure demands, and the public's concern over where these vehicles are stored when ...more »

Voting

9 votes
10 up votes
1 down votes
(@chenfu)

Traffic and Safety

Generate Surrogate Safety Measures at Intersections Using Machine Vision

The National Highway Traffic Safety Administration Report [1] indicated that pedestrians account for 16% of the fatalities in traffic accidents on US roadways during 2017. Pedestrian fatalities in urban areas increased by 46% since 2008. The 2017 traffic safety facts indicated that the proportion of people killed "outside the vehicle" (pedestrians, cyclists, motorcyclists, and other non-occupants) increased from a low ...more »

Voting

26 votes
26 up votes
0 down votes
(@scott.morgan)

Environment

Green Soil Decompaction using Tillage Radishes

Compacted soil causes poor turf establishment, low water infiltration rates, and increased short term erosion. Tillage Radishes are a cover crop that germinate and establish rapidly, have a long tap root, winter kill, and decompose rapidly. They return the soil nutrient to the soil and provide drainage paths through the soil as the root decomposes.

Voting

5 votes
6 up votes
1 down votes
(@jim.henricksen)

Policy and Planning

Accessibility-Based Congestion Measure for Transit

Congestion on Minnesota's roads and highways reduces commuters' ability to reach destinations. These impacts are felt by all road users, whether traveling by car or by public transit. MnDOT leads the ongoing National Accessibility Evaluation pooled fund research project, which currently measures the impact congestion has on job access by car. Research towards a comparable transit measure can bring greater understanding ...more »

Voting

11 votes
11 up votes
0 down votes
(@nlmorris)

Traffic and Safety

Driver Comprehension of Flashing Yellow Arrows

Flashing yellow arrows are frequently deployed to smooth left-turning traffic at signalized intersections. While FHWA considers the flashing yellow arrow as a dramatic safety improvement on the green ball and that it is intuitive to drivers, driver complaints about their confusing state and some high profile crashes call into question their mainstream comprehension. An added complication is the various light arrangments ...more »

Voting

4 votes
4 up votes
0 down votes
(@tfisher)

Policy and Planning

Community Transit Strategies

A human-centered design approach to transportation in Greater Minnesota can lead to more efficient transit solutions that utilize the existing public and private assets in rural communities. This approach can take several directions, depending upon the community's needs and assets. We propose engaging the city of Wabasha in a community transit pilot project that would give people with transportation needs access to rides ...more »

Voting

2 votes
2 up votes
0 down votes
(@andrew.andrusko)

Policy and Planning

First and Last Mile Connections - How to Manage Freight Delivery with Automated Vehicles

One of the on going issues with delivery of goods is the first and last mile connections which are primarily made of local roads. This research will help to identify future trends and policy issues with freight delivery by autonomous vehicles and automated vehicles. While significant research has look at current solutions in the present day, how should businesses and communities plan for the future supply chain of tomorrow. ...more »

Voting

2 votes
2 up votes
0 down votes
(@jim.henricksen)

Policy and Planning

Impacts of autonomous mobility-on-demand on Minnesota congestion

Ridesharing and vehicle manufacturers are increasingly moving towards autonomous mobility-on-demand (AMOD) to provide automated vehicle service to travelers. AMOD acts essentially like a point-to-point taxi or ridesharing service, except that vehicles are automated which greatly reduces ridership costs. Due to the lack of a driver, the remaining costs of vehicle purchase, operational costs (e.g. fuel), and maintenance ...more »

Voting

9 votes
9 up votes
0 down votes
(@duane.hill)

Traffic and Safety

Rumble Strip vs Mumble Strip

The sound made by standard rumble strips has a quality of life impact on the environment near locations where they are installed. These can be heard from over a mile away. The sound is alarming to residents and citizens that are near the roadway. Sinusoidal "mumble" or "quiet" rumble strips have been developed to mitigate the sound created by standard rumble strips. An alternative analysis needs to be performed to ...more »

Voting

22 votes
23 up votes
1 down votes
(@olivia.dorow.hovland)

Multimodal

Assessing the economic effects of context sensitive main street highways in small towns

MnDOT's 'Minnesota GO' envisions a multimodal transportation system that maximizes the health of our economy. In small towns in Greater Minnesota, a MnDOT trunk highway is often the town's commercial main street. MnDOT plans and develops context sensitive projects that are performance-based, using a 'complete streets' approach. When completed, such small town projects have been found to benefit main street businesses, ...more »

Voting

13 votes
13 up votes
0 down votes
(@timothy.sexton)

Materials and Construction

Pilot Test EPDs to Reduce GHG Emissions from Pavement Construction

A "Buy Clean MN" bill was proposed in 2019 legislature to require MnDOT to use materials with the lowest Global Warming Potential (GWP). The language was copied from a recently passed bill in CA that requires use of lowest GWP materials based on a life cycle assessment of emissions and uses Environmental Product Declarations (EPDs) to verify results. MnDOT has targets to reduce construction emissions and we have been ...more »

Voting

10 votes
10 up votes
0 down votes
(@hally.turner)

Policy and Planning

Disparities faced by older adults, people with sensory and/or cognitive disabilities, single-and parent households

Transportation equity efforts aim to create a transportation system that all populations can participate in and benefit from, while prioritizing the needs of populations who have been traditionally underserved and underrepresented by transportation systems. Underserved populations identified in transportation equity-related programming typically include people of color, low-income communities, zero-vehicle households, ...more »

Voting

8 votes
8 up votes
0 down votes
(@hally.turner)

Policy and Planning

Effective community engagement methods that lead to ongoing long-term relationships

While innovative strategies are being used to create inclusive public engagement processes, further research can help MnDOT and its partners identify targeted outreach and effective engagement methods that can support the participation of underserved and underrepresented groups. MnDOT's Strategic Operating Plan commitment to strengthen relationships by "promot[ing] ongoing, inclusive and community-based approaches to ...more »

Voting

8 votes
8 up votes
0 down votes