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RAd Readings

US-41 in Marquette county, with a sign that reads Moose crossing.

RAd Readings

RAd Readings is a new resource for Research Administration news and updates regarding research projects. Stay up to date with the latest research news and learn more about how MDOT Research impacts the transportation industry.

  • An overhead image of a Detroit-area intersection with color-coded dots and lines created from video data capturing pedestrian movements.

    Improving road safety with video analytics technology

    September 26, 2024

    Emerging video analytics technology may offer a clearer view of roadway incidents and even capture near misses between vehicles, pedestrians, bicycles, and others. New Michigan DOT research evaluates the current state of this technology, including its potential to provide real-time data to agencies and drivers about hazardous roadway locations. 

  • Bridge over a multilane interstate highway shows damaged fascia.

    AASHTO Recognizes MDOT for Its Innovative Research

    August 21, 2024

    Each year, the American Association of State Highway and Transportation Officials (AASHTO) Research Advisory Committee (RAC) identifies the top projects nation-wide that impact transportation agencies’ practices and policies and that benefit the traveling public. The projects are a great resource to state departments of transportation (DOTs) looking to learn from the best of the best.

    The Michigan Department of Transportation (MDOT) has participated in this competition annually. For several years, an MDOT project has been selected from the hundreds of projects submitted and recognized in the categories of high value and supplemental research. 

    During this summer’s Research Advisory Committee (RAC) meeting, MDOT’s research project, Repair of Bridge Deck Fascias, was selected as High Value Research in the Maintenance Special Category.

    To learn more about this and other MDOT High Value Research projects, please visit our High Value Research StoryMap.

  • A sheep foot roller compacting the subgrade of a stabilization project.

    Best practices and specifications for stabilizing pavement subgrades

    July 11, 2024

    MDOT’s new guidance and construction specifications help determine when to use subgrade stabilization to support road construction and provide sustainable pavement. Unified best practices will facilitate consistent use of subgrade stabilization practices when needed across the agency. 

  • A weather-activated “BRIDGE ICES BEFORE ROAD” warning sign along a two-lane rural highway. The sign has a flashing LED border and a text panel below with the message “SLOW DOWN.”

    Alerting drivers to unsafe winter conditions on Michigan bridges

    May 02, 2024

    Ensuring driver safety in wintry conditions is a top priority in Michigan. However, icy bridges can catch drivers by surprise and be a serious threat to their safety. New MDOT research shows how the installation of weather-activated signs at bridge crossings can better alert drivers to dangerous conditions and induce them to slow down.

  • Bridge over a multilane interstate highway shows damaged fascia.

    New methods for preventing and repairing bridge deck fascia damage

    March 28, 2024

    Concrete fascias along bridge decks often deteriorate more quickly than other portions of a bridge. To determine the causes of these failures, a recent MDOT project examined 40 bridges to identify trends and correlations of fascia deterioration. Researchers also developed a tool to assess damage and determine if repairs are needed. Study results were used to develop new repair methods for existing bridges and design options for new bridges, which will support safe and sustainable bridges in the state. 

  • Green strobe lights on a winter maintenance vehicle.

    Green Strobes Added to MDOT Winter Maintenance Vehicles Increases Visibility

    March 08, 2024

    Ever since MDOT’s research showed that adding green lights to the state’s winter maintenance vehicles can increase visibility and safety for everyone on the road, we’ve been busy putting the findings to work. Learn more about this project and in our new Implementation Spotlight newsletter.

  • A worker uses a lightweight deflectometer to assess a road base.

    Refining data and tools to design cost-effective, sustainable pavement

    February 15, 2024

    Enhancements to MDOT’s pavement design process will support MDOT engineers in designing cost-effective and sustainable pavement. The process has been updated with new data, sampling and testing protocols, and locally calibrated models to represent Michigan-specific conditions. 

  • Partially or poorly lit intersection showing a pedestrian waiting to cross.

    Making high-speed corridors safer for pedestrians and cyclists

    February 02, 2024

    Sufficient lighting and improved traffic controls can be used to mitigate pedestrian and bicyclist danger along fast and busy roads. New MDOT research reports that pedestrian and bicyclist crashes disproportionally occur along high-speed roads at night. Researchers evaluated and recommended countermeasures, such as increasing the amount of lighting at intersections, using high-visibility markings and installing traffic control devices, to effectively reduce the occurrence of these crashes.

  • Aerial view of a ROW map over a terrain view of the same location.

    Modernizing Right of Way Maps with Geographic Information Technology

    October 05, 2023

    State employees and members of the public who rely on access to MDOT’s right of way information quickly find that the system reflects different eras of archive technology. New MDOT research presents a needs analysis and design plans for modernizing decades of data using geographic information system (GIS) technology. 

  • A vehicle approaching a ferry dock entrance, with a researcher holding out a survey questionnaire to the driver.

    Evaluating Michigan’s Ferry Services, Funding and Policies to Support Island Access

    September 07, 2023

    Ferries remain an essential transportation link for Michigan’s islands. Thousands of residents, business owners and visitors rely on island ferry service to access healthcare, emergency services, jobs, and other economic opportunities. New MDOT research assesses how the state’s ferry operators ensure safe and equal mobility for island residents, offering recommendations to address future needs based on rider feedback and best practices from other states. 

  • Side-by-side images of workers constructing an asphalt road and a bird’s-eye view of the project.

    Evaluating Pavements Designed for Longer Life

    August 31, 2023

    Long-life pavements are more expensive to build than traditional roads but require less maintenance over time. To determine whether they’re a good long-term investment, a new MDOT research project evaluated four sample pavements – and all of the building materials and practices that were used to make them – to learn just how much taxpayers could save when a road lasts 50 years or more. 

  • Roundabouts have significantly fewer points where crashes may occur than traditional intersections with traffic signals or stop signs.

    Maximizing the Safety, Economic and Environmental Benefits of Michigan Roundabouts

    August 22, 2023

    While all roundabouts are generally safer than traditional intersections with stop signs or traffic signals, a new MDOT Research project found that location, design, signage and other factors can make a big difference on driver behavior and system performance. The project’s findings will help Michigan DOT plan and design future roundabouts that are safe and effective for all types of road users.

     
  • Experimental concrete slabs, each with an overlay applied at different times during the concrete curing process, sat in Michigan’s weather for 16 months.

    Revised Concrete Cure Times Reduce Duration of Bridge Closures

    July 27, 2023

    After repairing a concrete bridge deck, the Michigan Department of Transportation’s policy requires waiting nearly a month for the concrete to cure before it can be treated and the bridge reopened to traffic. But new MDOT research shows the concrete may be ready sooner than previously thought. As each day of closure can cost thousands of dollars in construction and traffic management costs, reopening sooner can save significantly.

  • Cover picture of the Recent Research Results Report

    New Recent Research Results Report!

    June 15, 2023

    We welcome you to review the Recent Research Results Report highlighting the past two years of research conducted by The Michigan Department of Transportation (MDOT). Reviewing this collection of project summaries will inform you of the research engaged in and provide a sense of the value of the research conducted.

  • Aerial shot of a divided highway undergoing median work

    Measuring Michigan’s Highway Network Performance is Critical for Planning

    May 4, 2023

    Ever wonder how Michigan DOT estimates the travel times on the state’s highways? By monitoring traffic volumes, average speed and other data, MDOT can measure the performance of Michigan’s transportation network, provide accurate travel predictions and make a variety of transportation-related decisions and strategic investments to keep traffic flowing. A new MDOT Research project explains how it all works.

  • An image of a railroad crossing with white Xs painted onto the asphalt roadway to make the crossing more visible.

    Enhancing Safety at Short-Storage Railroad Crossings

    April 6, 2023

    Railroad crossings can be tricky for drivers, especially when there isn't much room for a line of vehicles to wait. A new Michigan DOT research project studied driver behavior and provides recommendations for adding signs and pavement markings to make these intersections safer for everyone.

  • An image of pedestrians and a bicyclist using a paved path that runs along a city street.

    New Tool Helps MDOT Customize Roadway Designs for All Users

    January 12, 2023

    Modern road design practices recognize that each community has its own transportation needs, with a variety of social, economic and environmental factors influencing whether a person walks, bikes or uses another form of transportation to get around. A new Michigan DOT tool helps road designers work with communities to consider the larger context and build features that suit their location and meet all users’ needs. 

  • Concrete beam with cracking and pitting.

    Remedies for Concrete Bridge Beam Deterioration

    December 15, 2022

    Perennially exposed to harsh weather, prestressed concrete bridges built in the 1970s and 80s may be subject to a unique type of cracking. This project produced new methods and tools to identify the damage and prioritize bridge maintenance to repair and prevent future damage.

  • A traffic operations center with staff viewing multiple traffic images on a large screen.

    Integrating Drones into MDOT’s Day-to-Day Traffic and Asset Management

    September 22, 2022

    Drones can help Michigan DOT collect data in support of a variety of transportation-related operations. Uses include traffic monitoring and analysis, bridge inspections, 3-D modeling, construction quality control, design survey work and more. 

  • New Partners in Research Website

    September 08, 2022

    MDOT Research Administration is launching a new Partners in Research website to highlight the diverse group of universities, consultant groups, and transportation leaders who have recently completed, are currently working, or have interest in MDOT research partners with our office. The website is intended to be a resource for public and private transportation stakeholders interested in our research partners and their specific expertise’s.

    Quarterly calls for partners to be featured on the website will be sent out via GovDelivery and a link to a survey will also be available on the Partners in Research website for anyone interested in being included on the page.

    For any questions, please contact MDOT-Research@Michigan.gov.

  • Michigan Facilities Support Connected Vehicle Research

    August 25, 2022

    When MDOT wants to better understand driver behavior, test traffic control strategies and explore cutting-edge smart vehicle technology under safe and realistic conditions, it turns to Mcity, a world-class testing and research facility it helped to build right here in Michigan. A new MDOT Research project assessed Mcity’s current capabilities and future potential to support ground-breaking research on connected vehicles, related infrastructure and other transportation topics.

     
  • Research in Progress Update

    August 02, 2022

    The newly constructed Network Arch Bridge for Second Avenue in Detroit made its move to its permanent location over I-94 starting July 22nd and ending on July 29th. Research Administration worked with Western Michigan University to install a monitoring system studying the stresses on this structure during construction, the move, and after construction is complete. Our research project, Operational Baseline and Structural Health Monitoring for the 2nd Avenue Network Arch Bridge, will help answer questions about how this one of a kind structure performs. For an interesting read, check out, Moving a 5 Million-Pound BridgeTo see the bridge move in action, see video link below!  

     
  • Dyke Road through St. John’s Marsh

    Tools to Protect Coastal Roadways from High Water

    July 28, 2022

    As water levels in the Great Lakes rise, coastal roads and other infrastructure in Michigan are at risk of damage from flooding and erosion. MDOT has a range of options at its disposal for mitigating the impacts of these hazards, from temporary strategies such as sandbagging to long-term solutions like redesigning the roadway. New research produced a decision guide and other tools to help the agency identify where intervention is most needed and which investment will produce the greatest benefits.

  • Collage of three pictures featuring unmanned aerial vehicles, robotic inspections, and monitors viewing highway traffic.

    Preparing MDOT's Workforce for Future Transportation Technologies

    July 01, 2022

    Transportation technology is evolving quickly, leading to safer and more efficient design, construction, maintenance and inspection practices in Michigan. By anticipating the skills workers will need to manage and operate these technologies throughout the next decade, MDOT has developed a strategic plan to prepare its workforce for the challenges of the future. Our new video, available highlights the technologies on the horizon and how the agency is preparing to meet demands.

  • MDOT's updated severity index

    Risk Management Tools Help MDOT Deliver Projects on Time and on Budget

    May 26, 2022

    Thoroughly assessing and managing risk is critical for keeping construction projects on time and within budget. To make sure the risk management process goes as smoothly and efficiently as possible, Michigan DOT initiated new MDOT Research to discover the tools and techniques used by risk managers across the country. The insight guided researchers as they developed a new and improved set of customized tools, documents and guidance to ensure MDOT’s construction projects are on track to save time and money.

  • Map showing DMS sites in Michigan.

    Benefits of Dynamic Message Signs on Driver Behavior and Traffic Flow

    May 19, 2022

    Dynamic message signs can be updated frequently to give drivers real-time updates about crashes, lane closures, inclement weather, and other relevant information. New MDOT research provides insight into the length, display duration and wording of effective messages so that drivers receive the info they need to make safe decisions in real-time. With greater understanding of how dynamic message signs should be used to get drivers’ attention, MDOT can maximize its budget and keep traffic moving safely. 

  • Speed feedback sign.

    Evaluation of Dynamic Speed Feedback Signs on Freeway Interchange Ramps

    May 05, 2022

    Slowing down and adhering to posted speed limits are keys to reducing deadly crashes, especially at freeway exit ramps. New MDOT research shows that targeting custom messages from dynamic speed feedback signs can be a powerful life-saving tool, alerting drivers when they’re going too fast and reminding them to lower their vehicle’s speed around curves.

  • Pedestrians using a gateway crossing to cross road.

    Updating Best Practices to Keep Pedestrians and Bicyclists Safe

    April 28, 2022

    Bicyclists and pedestrians made up about 20% of all traffic fatalities in Michigan in 2020. To make roadways safer for these vulnerable users, Michigan DOT is constantly on the lookout for ways to improve the state’s infrastructure with nonmotorists’ needs in mind. This MDOT Research project identified and documented a variety of design strategies and technologies that have worked well in other communities across the country. That info, combined with input from stakeholder groups across the state, will ensure all road users are considered in decisions involving Michigan’s transportation system.

  • Traffic on the Flex route

    Evaluating Safety and Traffic Improvements Along Michigan’s First Flex Route

    April 14, 2022

    The 9-mile stretch of US-23 north of Ann Arbor is Michigan’s first flex route, but given its success it likely won’t be the last. With nearly 70% of users reporting their satisfaction with the route’s technologically advanced traffic mitigation strategies, MDOT now has a prototype for adding flex routes to other congestion-prone roadways in the state.

  • Aerial view of bridge overpass

    Innovative Contracting Provides Flexibility to Customize Project Results

    April 07, 2022

    MDOT’s innovative contracting program provides incentives for contractors to meet certain objectives – from completing projects more quickly to getting jobs done with less travel disruption – and rewards professionals who come up with thoughtful, creative solutions. New MDOT Research shows which strategies work best to achieve the desired results, leading to greater innovation and increasing efficiency on projects across the state. 

  • YouTube thumbnail image for SPR-1701 video spotlight, titled Restoring Sloped Areas Along Michigan's Urban Freeways.

    Restoring Sloped Areas Along Michigan's Urban Freeways

    March 24, 2022

    High winds, poor soil, pollution and steep terrain all contribute to a harsh and hard-to-grow environment along Michigan’s urban highways. Turf grass has traditionally been the go-to greenery solution, but its high-maintenance needs and short root system make it less ideal for these sloped areas. Determined to create green spaces that can prevent erosion with less upkeep, MDOT conducted a multi-year study that identified a variety of plants and installation practices that can result in beautiful and beneficial landscapes in even the toughest environments.

  • Screen capture of the interface for the Mcity OS, Skyline.

    MDOT Research Contributes To Driverless Cars

    March 02, 2022

    A recent BBC article, How Driverless Cars Will Change Our Worldhighlights the research being completed at Mcity to help further develop the Autonomous Vehicles, or driverless cars. Did you know, MDOT has contributed $3 million in research funding to the facility? Learn more about the research project behind the funding by visiting the link below.

  • Diaphragms placed at intermediate locations (the members running left to right in this image) on the underside of a bridge.

    Measuring the Effect and Value of Intermediate Diaphragms on Bridges

    February 10, 2022

    A new Research Spotlight highlights MDOT’s efforts to determine when intermediate diaphragms should be used for stability in certain precast concrete beam bridges. Modeling data will help MDOT’s bridge designers decide when and what types of beams require extra lateral support.

  • Collage of three pictures featuring unmanned aerial vehicles, robotic inspections, and monitors viewing highway traffic.

    MDOT Prepares its Workforce for Emerging Transportation Technologies

    February 03, 2022

    A highly trained and specialized transportation workforce will help MDOT make the most of emerging technologies for years to come. A new MDOT Research report forecasts the skills that will be needed and recommends strategies to retrain current staff and recruit new workers to meet the demands of the future.

  • Roadside slope with plants laid out for planting.

    New Standards Foster Successful Roadside Planting

    January 06, 2022

    Grassy slopes along Michigan’s urban freeways once posed safety hazards and logistical challenges for MDOT maintenance crews. But thanks to new MDOT Research that shows just what to plant and how to achieve great results, these areas can become useful green spaces that reduce erosion, keep pollutants out of Michigan’s waterways and practically eliminate the need for maintenance. 

    Research Spotlight: Slope Restoration on Urban Freeways