Webinar: Tools and Techniques for Teaching Collaborative Regional Planning and Enhancing Livability and Sustainable Transportation in Gateway & Natural Amenity Regions

 

PRESENTATION ARCHIVE

Small towns and cities outside of national parks and other major natural amenities throughout the western United States are becoming increasingly popular places to visit and live. As a result, many of these gateway and natural amenity region (GNAR) communities—including places such as Jackson, Wyoming, and Moab, Utah—are facing a variety of “big city” issues, such as severe congestion, lack of affordable workforce housing, and concerns about sprawl and density. This webinar will introduce the planning and transportation concerns being experienced by GNAR communities throughout the west. It will then share the tools and resources developed by the University of Utah to train planners to work in these unique communities and to help these communities enhance livability and sustainable transportation options. The webinar will also introduce the University of Utah’s new Gateway and Natural Amenity Region Initiative and ongoing research aimed at better understanding and addressing the planning and transportation issues in GNAR communities. 

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Connected Vehicle System Design for Signalized Arterials

Webinar: Connected Vehicle System Design for Signalized Arterials

 

PRESENTATION ARCHIVE

OVERVIEW

It can be expected that connected vehicles (CVs) systems will soon go beyond testbed and appear in real-world applications. To accommodate a large number of connected vehicles on the roads, traffic signal control systems on signalized arterials would require supports of various components such as roadside infrastructure, vehicle on-board devices, an effective communication network, and optimal control algorithms. In this project, we aim to establish a real-time and adaptive system for supporting the operations of CV-based traffic signal control functions. The proposed system will prioritize the communication needs of different types of CVs and best utilize the capacity of the communication channels. The CV data sensing and acquisition protocol, built on a newly developed concept of Age of Information (AoI), will support the feedback control loop to adjust signal timing plans.

Our multidisciplinary research team, including researchers from transportation engineering and electrical engineering, will carry out the project tasks along four directions that capitalized on the PIs’ expertise:

  1. Data collection and...
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Webinar: Collecting and Analyzing Pedestrian Behaviors at Intersections Using LiDAR Tracking Technologies

PRESENTATION ARCHIVE

OVERVIEW

The aim of this research is to investigate pedestrian behavior at signalized intersections using state-of-the-art LIDAR sensing technologies and to use this data, along with vehicular data, to develop a more effective multimodal signal control system.

In the presentation, the presenters will describe a novel method of collecting pedestrian crossing behaviors at signalized intersection, discuss the findings and implications of data analytics, and introduce a novel approach to dynamic flashing yellow arrow mechanisms to reduce the conflict between left turn vehicles and crossing pedestrians.

KEY LEARNING OUTCOMES

  • Understand the framework of LiDAR sensing solutions;
  • Understand how to collect pedestrian behaviors at intersections;
  • Understand how to provide new protection for crossing pedestrians with object-tracking technologies.

THE RESEARCH

This webinar is based on a study funded by the National Institute...

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A bus stop with a shelter, bench, and sidewalk showing people boarding the bus

Webinar: Bus Stops: Access and Equity

 

PRESENTATION ARCHIVE

OVERVIEW

Improving bus stops by providing shelters, seating, signage, and sidewalks is relatively inexpensive and popular among riders and local officials. Making such improvements, however, is not often a priority for U.S. transit providers because of competing demands for capital funds and a perception that amenities are not tied to measurable increases in system effectiveness or efficiency. This webinar focuses on the role that bus stops play as the point of first contact between transit agencies and their potential riders, and how the quality of that contact can influence both ridership and accessibility for riders with mobility-related disabilities. The webinar will use results from recent research sponsored by NITC and the Utah Department of Transportation looking at possible impacts that bus stop improvements made by the Utah Transit Authority (UTA) have had on stop-level ridership and demand for Americans with Disabilities Act (ADA) paratransit services. The results demonstrate how investments in bus stop facilities are not...

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Image: Salt Lake City overview on a sunny day. Text reads: Transportation Benefits of Polycentric Urban Form, Jan 19, 2021.

Webinar: Transportation Benefits of Polycentric Urban Form

 

PRESENTATION ARCHIVE

OVERVIEW

A “polycentric” region consists of a network of compact developments connected with each other through high-quality transportation options. Rather than continuing the expanse of low-density development radiating from an urban core, investments can be concentrated on central nodes and transit connections. This development pattern is very popular in Europe and is linked to significant benefits. This presentation is aimed at exploring the academic literature and empirical evidence surrounding polycentric development, analyzing more than 120 regional transportation plans to see how they promote polycentric development, defining types of centers in a hierarchy of centers, quantifying the transportation benefits of polycentric development, examining a case study of best practices, and, finally, outlining context-specific strategies for Salt Lake County and the Wasatch Front region.

KEY LEARNING OUTCOMES

  • Regional transportation plans suffer from a lack of consistent indicators to designate centers and guide their developments.
  • On average, households living in centers tend to make fewer and shorter automobile trips, take transit more, walk more, and bike less.
  • Tours (a sequence of...
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Webinar: Developing a New Accessibility Measure to Support Older Adults in a Post-Pandemic World

PRESENTATION ARCHIVE

OVERVIEW

Older adults often face challenges with mobility and accessibility, which can limit their independence and quality of life. This seminar will explore these issues and lessons learned from the research to improve travel experiences and satisfaction for older adults.

KEY LEARNING OUTCOMES

  • Highlights the importance of considering diverse dimensions of older adults' needs.
  • Found a significant dissatisfaction and vulnerability experienced by older adults with limited mobility.
  • Identified the need for addressing the critical accessibility and mobility gaps with older adults.

THE RESEARCH

This webinar is based on a study funded by the National Institute for Transportation and Communites (NITC) and conducted at the University of Utah. Read more about the project: Transportation for Seniors (T4S): Developing a New Accessibility Measure to Support Older Adults in a Post-Pandemic World.

SPEAKERS

Andy Hong, University of Utah...

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Webinar: Electric Bus Deployment: Cost and Environmental Equity

 

PRESENTATION ARCHIVE

OVERVIEW

This presentation introduces an innovative spatiotemporal analytical framework and web-based visualization platform developed by researchers at the University of Utah to assist transit agencies in identifying optimal deployment strategies for a battery-electric bus (BEB) system by using a combination of mathematical programming methods, GIS-based analysis, and multi-objective optimization techniques. The framework allows transit agencies to optimally phase in BEB infrastructure and deploy the BEB system in a way that can minimize the capital and operational cost of the BEB system while maximizing its environmental benefits (i.e., emission reduction).

KEY LEARNING OUTCOMES

  • Introduction to a bi-objective spatiotemporal optimization model for the strategic deployment of BEBs to minimize the cost of purchasing BEBs, on-route and in-depot charging stations, and to maximize environmental equity for disadvantaged populations.
  • The optimization considers the unique constraints imposed by BEB...
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Webinar: Building Capacity in Gateway Communities through the GNAR Academy

 

PRESENTATION ARCHIVE

OVERVIEW

Small towns and cities near national parks, public lands, and other natural amenities across the West are experiencing rapid growth and increased tourism. As we have documented via our prior NITC-funded research, this has created a range of big city challenges for these “gateway communities,” particularly in the form of interconnected transportation, land use, and housing issues. Seeking to help gateway communities better prepare for and respond to their transportation and planning challenges, the Gateway and Natural Amenity Region (GNAR) Initiative team translated the findings from our research on planning and development challenges in gateway communities into an online learning program.

This program, the "GNAR Academy Fundamentals: Foundations for Planning and Collaboration in Gateway Communities and Regions" includes seven modules, each of which...

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Webinar: Data-Driven Mobility Strategies for Multimodal Transportation

PRESENTATION ARCHIVE

OVERVIEW

Multimodal transportation systems (e.g., walking, cycling, automobile, public transit, etc.) are effective in increasing people’s travel flexibility, reducing congestion, and improving safety.  Therefore, it is critical to understand what factors would affect people’s mode choices. With advanced technology, such as connected and automated vehicles, cities are now facing a transition from traditional urban planning to developing smart cities. To support multimodal transportation management, this study serves as a bridge to connect speed management strategies of conventional corridors to connected vehicle corridors.

The study consists of three main components. In the first component, the impact of speed management strategies along traditional corridors was evaluated. In the second component, the impacts of the specific speed management strategies, signal retiming and...

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Webinar: Modeling Freeway Traffic in a Mixed Environment: Connected and Human-Driven Vehicles - Terry Yang

Webinar: Modeling Freeway Traffic in a Mixed Environment: Connected and Human-Driven Vehicles

 

PRESENTATION ARCHIVE

Miss the webinar or want a look back?

OVERVIEW

Although connected vehicles (CVs) will soon go beyond testbeds, CVs and human-driven vehicles (HVs) will co-exist over a long period. Hence, it is critical to consider the interactions between these two types of vehicles in traffic flow modeling. In this study, we aim to develop a macroscopic model to understand how CVs would impact HVs in the traffic stream. Grounded on the second-order traffic flow model, we study the relationships among flow, density, and speed by two sets of formulations for the groups of CVs and HVs, respectively. A set of friction factors, which indicate CVs' impact to HVs, are introduced to the speed equation for accounting CV speed impacts. Then extended Kalman Filter is employed to update both model parameters and friction factors in real-time. By using CVs trajectory data as measurements, the difference between CV average speed and overall traffic mean speed will be fully accounted. The proposed model will serve as a basis for designing CV-based traffic control function,...

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