Don MacKenzie
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AI-Driven Feedback Systems Reduce Sidewalk Riding on Shared E-Scooters Open
This study examines the impact of AI-based feedback and speed restrictions on reducing sidewalk riding in shared e-scooters. In partnership with Spin, 100 scooters in Santa Monica, California were fitted with computer vision, with feedback…
A Review of the Customer Experience at Public Charging Stations and its Effects on Electric Vehicle Purchase and Use Open
The electric vehicle (EV) market in the U.S. has grown rapidly. However, poor public charging reliability could challenge achieving widespread adoption. We reviewed peer-reviewed articles and market research reports to understand how the p…
Value of Travel Time is Lower When Being Driven than when Driving Oneself Open
How does the value of travel time (VOTT) differ between time spent driving and time spent being driven in a car? We examined revealed choices between ridehailing and free-float carsharing using data from an aggregator app that allowed user…
Effect of trip attributes on ridehailing driver trip request acceptance Open
A generalized additive mixed model was estimated to investigate the factors that impact ridehailing driver trip request acceptance choices, relying on 200 responses from a stated preference survey in Seattle, US. Several policy recommendat…
Understanding working time and relocation choices of ridehailing drivers Open
We identified four types of ridehailing drivers and jointly modeled driver working time and relocation choices using a stated preference survey of 200 drivers in Seattle, US.
Customer Experience at Public Charging Stations and Its Effects on the Purchase and Use of Electric Vehicles Open
To support the ChargeX Consortium’s mission to measure and significantly improve the reliability and usability of public charging infrastructure in North America, researchers in the consortium from the University of Washington (UW) reviewe…
Accelerating electric vehicle charging investments: A real options approach to policy design Open
Replacing conventional cars and trucks with battery electric vehicles requires a rapid expansion of fast-charging infrastructure. However, private sector charging infrastructure investments are delayed by unfavorable project economics and …
Evidence for Modal Inertia in Multimodal Tours: An Integrated Choice and Latent Variable Modeling Approach Open
In this paper, we aim to answer two main questions in the context of multimodal travel and new modes of transportation, such as autonomous vehicles: firstly, as travelers gain the ability to readily compare modes side by side for each trip…
Emissions Reductions from Electrifying High-Mileage Vehicles Open
This paper evaluates a strategy that would target sales of internal combustion vehicles driven at high annual mileage for displacement by electric vehicles at the time of initial sale. Using the 2017 National Household Travel Survey data, …
ChargEVal — A multi-user framework for simulating and analysing charging station deployment scenarios using agent-based modelling Open
ChargEVal is a framework for simulating the performance of charging station deployment scenarios using agent-based modelling (ABM). The ABM utilizes behavioural models for simulating vehicle choice for the trip and charging choice during a…
Exploring equity: How equity norms have been applied implicitly and explicitly in transportation research and practice Open
By definition, equity is concerned with justice. On a societal level, equity is concerned with the just distribution of resources in society. Because a wide range of theories of just distribution exist, equity considerations are multifacet…
“COVID-19 Disruption on Travel Patterns data” Open
The dataset includes data collected through a survey aimed to study how travel-related decisions of residents of the Puget Sound Region in Washington State have changed as a result of the COVID-19 pandemic. In the survey, we asked each res…
Ride Sharing Attitudes Before and During the COVID-19 Pandemic in the United States Open
We explore how the COVID-19 pandemic has changed individuals’ attitudes and perceptions toward sharing rides. In 2019, the year before the pandemic, we had implemented an online survey to understand US travelers’ attitudes and perceptions …
MisplacedWheels Archive Open
The archive contains the following: 1. Code for the app - MisplacedWheels 2. Code for viewing the submitted reports: MisparkedRepo 3. The backup of the database, which can be used to set it up.
2019 EV infrastructure and purchase choice survey Open
This dataset contains results from a stated choice experiment set in a context where respondents are buying their next personal car. Before the choice experiment, respondents answered questions about their socio-economic background and wer…
Data - 2019 EV infrastructure and purchase choice survey.tab Open
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Effects of Charging Infrastructure Characteristics on Electric Vehicle Preferences of U.S. Private Car Owners: A Comparative Analysis between New and Used Car Buyers Open
Used car market is a critical target of the mass adoption of electric vehicle (EV). However, most efforts of previous studies on EV adoption focused only on new car markets. In order to add to potential solutions for promoting EVs, this pa…
Analyzing the Shift in Travel Modes’ Market Shares with the Deployment of Autonomous Vehicle Technology Open
It is generally accepted that automation as an emerging technology in transportation sector could have a potential huge effect on changing the way individuals travel. In this study, the impact of automation technology on the market share o…
View article: Effects of a Public Real-Time Multi-Modal Transportation Information Display on Travel Behavior and Attitudes
Effects of a Public Real-Time Multi-Modal Transportation Information Display on Travel Behavior and Attitudes Open
This study reports on an experiment in downtown Seattle, Washington, to evaluate whether installing a public real-time multi-modal transportation information display screen in an office building lobby caused changes in building occupant se…
View article: Racial and Gender Discrimination in Transportation Network Companies
Racial and Gender Discrimination in Transportation Network Companies Open
Passengers have faced a history of discrimination in transportation systems.Peer transportation companies such as Uber and Lyft present the opportunity to rectify long-standing discrimination or worsen it.We sent passengers in Seattle, WA …
Help or hindrance? The travel, energy and carbon impacts of highly automated vehicles Open
In 5-10 years, experts predict that new automobiles will be capable of driving themselves under limited conditions and under most conditions within 10–20 years. Automation may affect road vehicle energy consumption and greenhouse gas (GHG)…
View article: The role of gas anxiety in the charging choices of plug-in hybrid electric vehicle drivers
The role of gas anxiety in the charging choices of plug-in hybrid electric vehicle drivers Open
Plug-in hybrid electric vehicles (PHEV) provide an opportunity to reduce petroleum consumption and greenhouse gas emissions without causing range anxiety. As a result, PHEV drivers are commonly assumed to be less dependent on the availabil…