University of Washington

Disabled Parking CV: Scalable Methods to Analyze Disability Parking Using Computer Vision and High-Resolution Aerial and Streetscape Images

People with disabilities disproportionately rely on public transportation to access employment, education, and healthcare services; however, public transit is not always available or equally distributed, which excludes social and community participation (Bascom & Christensen, 2017). Car transit is thus the only viable alternative. Since the Americans with Disability Act (ADA) of 1990, 4-8% of public […]

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Quasi-Sparsity in Transportation Origin-Destination Demand

Quasi-sparsity (QS) indicates that for a large-scale transportation network, most origin-destination (OD) demands are concentrated on a small fraction of the OD pairs, while majority of the OD pairs exhibit small (maybe non-zero) travel demands. One example is the King County network (the area that includes the City of Seattle in the State of Washington):

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The Travel Behavior and Data (TBD) Hub

In an era characterized by transformative shifts in demographics, lifestyles, work patterns, technological advances, societal values, and climate and environmental conditions, decision-makers are now confronted with ever-increasing, multifaceted uncertainties. The TBD National Center has launched a flagship initiative, called the TBD Hub, to provide transportation decision-makers information and deep insights about the state of the

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The Differential Accessibility Effects of Work from Home: Travel Behavior Outcomes and Transportation Equity Implications

Researchers have long highlighted the potential effects of telework on the geography of opportunity in metropolitan areas. Telework, despite increasing accessibility to certain job markets, can further cause employment and population to decentralize, facilitating a spatially dispersed pattern of metropolitan growth. This could exacerbate existing disparities and inequities, making it harder for disadvantaged and transit-dependent

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Consumer Preferences for Restaurant and Grocery Delivery Services in Seattle: Impacts on Travel Behavior

The use of restaurant and grocery delivery services, coupled with the growth of e-commerce and related parcel delivery raises concern for the safety of drivers and pedestrians in urban areas. Traditional restaurants, ghost restaurants which operate out of storefront kitchens, grocery delivery services which similarly operate out of traditional stores or urban warehouses or micro-fulfilment

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A Pilot Study to Integrate Mobility Data Collection APPs with Personalized Recommendation Systems

Recent years have witnessed many efforts to use smartphones to collect travel data. Typical examples include the automatic collection of sensor data such as location, accelerometer, or microphone readings, and personalized recommendation/behavior modification by gamifying travel and providing incentives for particular mode choices or building route choice models for active transportation modes such as bicycling.

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