Torrey Lyons
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View article: Regional Policies, Practices, Tools, and Strategies to Implement Polycentric Development: Comparative Case Studies of Portland, Seattle, and Denver
Regional Policies, Practices, Tools, and Strategies to Implement Polycentric Development: Comparative Case Studies of Portland, Seattle, and Denver Open
Many of the larger US metropolitan regions promote polycentric development as a way of fostering livability, accessibility, and sustainability. Polycentric urban structures can increase transit ridership, promote active transportation, and…
View article: The Current State of Light-Duty Electric Vehicle Supply Equipment Costs: An Assessment of Contemporary Understanding
The Current State of Light-Duty Electric Vehicle Supply Equipment Costs: An Assessment of Contemporary Understanding Open
This study uses a hybrid meta-analysis and literature-review approach to understand the current state of knowledge regarding the costs of electric vehicle supply equipment (EVSE). We present a novel way to consider, categorize, and label m…
View article: Growth Management Effectiveness: A Literature Review
Growth Management Effectiveness: A Literature Review Open
Although growth management programs have many purposes, a critical one is to contain urban and suburban sprawl. Their efficacy in this regard is not well understood. In this paper, we review a comprehensive set of growth management tools, …
View article: Vulnerable road user safety and freight vehicles: A case study in North Carolina and Tennessee
Vulnerable road user safety and freight vehicles: A case study in North Carolina and Tennessee Open
Increasing freight traffic has posed greater road safety threats to Vulnerable Road Users (VRUs), including pedestrians and bicyclists, in urban communities. Although there are some disaggregated studies on truck-related crashes, the liter…
View article: Growth Management Effectiveness: A Literature Review
Growth Management Effectiveness: A Literature Review Open
Although growth management programs have many purposes, a critical one is to contain urban and suburban sprawl. Their efficacy in this regard is not well understood. In this paper, we review a comprehensive set of growth management tools, …
View article: Scooting to a New Era in Active Transportation:Examining the Use and Safety of E-scooters
Scooting to a New Era in Active Transportation:Examining the Use and Safety of E-scooters Open
The modern transportation paradigm is an ever-shifting target and, most recently, micro-mobility options such as electric shared scooter systems (e-scooters) have been contributing to local municipalities’ ability to adapt. Although severa…
View article: Safety and Nonoptimal Usage of a Protected Intersection for Bicycling and Walking: A Before-and-After Case Study in Salt Lake City, Utah
Safety and Nonoptimal Usage of a Protected Intersection for Bicycling and Walking: A Before-and-After Case Study in Salt Lake City, Utah Open
This paper describes a before-and-after case study of a protected intersection in Salt Lake City, Utah. The intersection was completed in late 2015 and represented one of the first examples of a protected intersection design in North Ameri…
View article: Reducing Vehicle Miles Traveled, Encouraging Walk Trips, and Facilitating Efficient Trip Chains Through Polycentric Development
Reducing Vehicle Miles Traveled, Encouraging Walk Trips, and Facilitating Efficient Trip Chains Through Polycentric Development Open
Compact development can result in many benefits for communities and residents. Areas can connect compact developments through high-quality transportation options, creating a network of centers, or a “polycentric” region. This development p…
View article: SOCIAL EQUITY IN TRANSIT SERVICE: TOWARD SOCIAL AND ENVIRONMENTAL JUSTICE IN TRANSPORTATION
SOCIAL EQUITY IN TRANSIT SERVICE: TOWARD SOCIAL AND ENVIRONMENTAL JUSTICE IN TRANSPORTATION Open
This dissertation explores social equity as it applies to public transportation. Transit has long been considered a tool to alleviate inequity by limiting the effects of spatial mismatch and providing access to opportunity to disadvantaged…
View article: Does Compact Development Increase or Reduce Traffic Congestion?
Does Compact Development Increase or Reduce Traffic Congestion? Open
From years of research, we know that compact development that is dense, diverse, well-designed, etc. produces fewer vehicle miles traveled (VMT) than sprawling development. But compact development also concentrates origins and destinations…
View article: Trip and parking generation at transit-oriented developments: Five US case studies
Trip and parking generation at transit-oriented developments: Five US case studies Open
Guidelines for trip and parking generation in the United States come mainly from the Institute of Transportation Engineers (ITE). However, their trip and parking manuals focus on suburban locations with limited transit and pedestrian acces…
View article: Trip and Parking Generation at Transit-Oriented Developments
Trip and Parking Generation at Transit-Oriented Developments Open
The decision of how best to allocate land around transit stations is a debated topic, with transit officials often opting for park-and-ride lots over active uses such as multifamily housing, office, and retail organized into transit-orient…