Projects

Abstract: Bike-sharing is rapidly gaining popularity due to health, transportation, and recreational benefits. As more people use bike-sharing, the burden of reallocating bikes will increase because of the mismatch between outgoing and incoming bikes. Optimizing truck routes, incentivizing users, and crowdsourcing are common suggestions to mitigate rebalancing issues. This research… read more 

Abstract: The COVID-19 pandemic and social distancing restrictions have had a significant impact on urban mobility. As micro mobility offers less contact with other people, docked or dockless e-scooters and bike-sharing have emerged as alternative urban mobility solutions. However, little empirical research has been conducted to investigate how COVID-19 might… read more 

Abstract: Dockless electric scooter (E-scooters) services have emerged in the United States as an alternative form of micro transit in the past few years. With the increasing popularity of E-scooters, it is important for cities to manage their usage to create and maintain safe urban environments. However, E-scooter safety in… read more 

Abstract— Big data and its production, management, and utilization are essential components in smart city planning. This paper presents a research framework for applying machine learning and deep learning using multiple big data sets on real estate. We built ensemble machine learning models to track property ownership variance in Austin,… read more 

Abstract: Transit deserts can result from the distribution of resources and services, and people living in transit deserts have limited access to transportation system. The aim of this study was to perform spatiotemporal data analysis to identify transit desert areas in Seoul in three steps. First, the transit gap between… read more 

Abstract The expansion of e-scooter sharing system has led to several novel interactions within the existing transportation system. Although there is a potential for e-scooter sharing and ridesourcing to both compete and complement each other, few studies shed light on the relationship between e-scooter sharing and ridesourcing. To fill this… read more 

Abstract Purpose – By comparing regression models, this study aims to analyze the added home value of green sustainability features and green efficiency characteristics, rather than green certifications, in the city of Austin. Design/methodology/approach – The adoption of home green energy efficiency upgrades has emerged as a new trend in… read more 

Abstract: Transit-oriented development has been a widely accepted tool among transportation planning practitioners; however, there are concerns about the risk of increasing residential property values leading to gentrification or displacements. Therefore, it is critical to provide precise investigations of the relationships between public transit and gentrification. Although numerous studies have… read more 

Abstract: Shared micromobility programs, including dockless electric scooter-share (E-scooter), are popular in many U.S. cities, and with their adoption brings the hope that they may uphold better car-free accessibility. However, few studies provide clear answers to what activities drive its travel demand or whether it could actually generate more visiting… read more 

Abstract: Although studies have previously investigated the spatial factors of COVID-19, most of them were conducted at a low resolution and chose to limit their study areas to high-density urbanized regions. Hence, this study aims to investigate the economic-demographic disparities in COVID-19 infections and their spatial-temporal patterns in areas with… read more