Total Results: 770
Improving Accuracy and Precision of Bicycle Volume Estimates Using Advanced Machine Learning Approaches
Sirisha Kothuri Banafsheh Rekabdar
This study seeks to improve modeling methods for estimating bicycle volumes. Better estimates of bicycle activity on local road and trail networks can help agencies prioritize projects, plan and design new bicycle infrastructure, and conduct safety and other analyses thus addressing the NITC theme…
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Risk-Based Methodology for Structural Evaluation of Bridge-Sized Culverts
David Yang Kevin White , Timothy Wood
Many long-span culverts are subject to loads from heavy trucks, and thus need to be evaluated for their load carrying capacities to estimate safety margins. However, the current manual on bridge evaluation provides limited guidance for bridge-sized culverts due to their distinct structural…
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Improving Guidance for Automated Speed Enforcement
Miguel Andres Figliozzi
PROBLEM SUMMARY
Fatal and severe injury crashes are on the rise in Oregon with one of the prominent factors being excessive speeding. As many cities and communities expand walking and cycling infrastructure there has been an increase in pedestrian fatalities and speeding is a key factor that…
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Portland SMART Grant: Zero Emission Delivery Zones
John MacArthur Nathan McNeil
In Spring 2023, the Portland Bureau of Transportation (PBOT) was awarded a Stage-1 grant under the Strengthening Mobility and Revolutionizing Transportation (SMART) Grants Program by the US DOT, titled “Decarbonizing Goods Movement: A Technology-Enabled Zero Emission Delivery Zone.”
The City of…
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Deploy Lidar Systems At Intersections To Improve Equitable Mobility
Taylor Li Stephen Mattingly
In this project, the researchers developed a series of technology transfer materials and plan to facilitate to deploy the research findings out of a NITC-funded project titled “Pedestrian Behavior Study to Advance Pedestrian Safety in Smart Transportation Systems Using Innovative LIDAR Sensors”. In…
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Validation of the New Speed Zoning Method for Urban Arterials and High-Speed Roadways in Terms of Speed Compliance and Safety Outcomes
Jason Anderson
The evaluation of the current ODOT methodology will focus on higher speed roadways such as arterials and roadways with a record of high severity injuries. This will require investigating ways agencies have found to balance between local safety needs and mobility of vehicles on urban arterials and…
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Exploring the Use of Crowdsourced Data Sources for Pedestrian Count Estimations
Sirisha Kothuri Nathan McNeil , Kate Hyun , Stephen Mattingly
Counts provide the foundation for measuring nonmotorized travel along a link or a network and are also useful for monitoring trends, planning new infrastructure, and for conducting safety, health, and economic analyses. For safety analysis, they are critical in assessing the exposure to risk. Over…
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Developing Guidance On Leading Pedestrian Intervals And Curb Extensions To Improve Pedestrian Safety At Signalized Intersections
David Hurwitz Christopher Monsere
Improving pedestrian safety continues to be critically important to ODOT’s mission to provide a safe and reliable multimodal transportation system. Approximately 920 pedestrians were injured, and 78 pedestrians were killed in Oregon each year between 2016 and 2020. Some of these pedestrian-vehicle…
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Taxing Shared Micromobility: Assessing The Global Landscape Of Fees And Taxes And Their Implications For Cities, Riders, And Operators
John MacArthur
Shared micromobility (including shared electric scooters and bikes provided by private companies) is one of the newest transportation options that has come to cities in the last several decades. A new report explores the different ways cities charge shared micromobility companies to operate, and…
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Tools and resources for gateway communities
Danya Rumore Philip Stoker
For the last five years, our team has been studying the planning and development challenges of small towns and cities near national parks, public lands, and other natural amenities. Our prior and ongoing NITC funded research shows that these “gateway communities”–which comprise a significant…
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Machine Learning and Big Data-Based Approaches for Quality Freeway Volumes
Adrian Cottam
Traffic volumes are essential for the operation of Intelligent Transportation Systems (ITS) and for use in performance metrics for Transportation Systems Management and Operations (TSMO). Maintaining high quality freeway volumes is paramount to ensure that freeway ITS solutions, such as ramp meters…
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Trends and Challenges Posed by Medium-Duty Trucks to the Operation and Safety of Oregon Highways
Miguel Andres Figliozzi
The primary goal of this initiative is to provide the agency with a comprehensive understanding of medium-duty truck operation, identification of potential areas of risk, forecast of future operational growth and monetization of the costs associated with these changes. To meet this goal, the…
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