Junfeng Jiao
Datos Biográficos
| ID | 3720632 |
|---|---|
| NOMBRE | Junfeng Jiao |
| NOMBRES | Junfeng |
| APELLIDO | Jiao |
| FIRMA | JIAO J |
| AFILIACIONES | The University of Texas at Austin |
| ORCID | 0000-0002-7272-8805 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 41 |
| TOTAL DE CITAS | 94 |
| TOTAL COMO AUTOR | 41 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2012 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 5 |
Investigating data center site planning of major ICT companies in the U.S.
Multi-scale GeoXAI Analysis of Electric Vehicle Charging Points Spatial Equity in Singapore
Mapping out AI functions in intelligent disaster (mis)management and AI-caused disasters
Generative AI and LLMs in industry
The rise of Generative AI (GAI) and Large Language Models (LLMs) has transformed industrial landscapes, offering unprecedented opportunities for efficiency and innovation while raising critical ethical, regulatory, and operational challenges. Despite growing adoption across sectors, little is known about how corporate governance frameworks address these multifaceted risks in a comparative, sector-specific manner—a clear knowledge gaps this study …
Energy creates intelligence
Does energy create intelligence? If intelligence in the AI era is fundamentally defined by computational capacity, then the geography of this digital intelligence is deeply grounded in material infrastructural conditions. This study investigates the interplay between energy systems, AI readiness, and data center deployment patterns, arguing that the geography of digital intelligence is fundamentally grounded in infrastructural conditions. Through…
IoT sensors as a tool for assessing spatiotemporal risk to extreme heat
The safety of urban populations sensitive to extreme heat is under increasing threat. Few studies examine the potential benefits of deploying IoT environmental sensors in the urban context and their integration with large-scale human activity data. This paper examines the deployment of IoT sensors in high-resolution extreme heat risk assessment in the case of Seoul, South Korea. This study conducted spatiotemporal analysis on heat exposure with I…
Developing a healthy food access index (HFAI)
Analysis of access and egress mode choice to high-speed railway stations
The global landscape of academic guidelines for generative AI and LLMs
Fire and smoke digital twin – A computational framework for modeling fire incident outcomes
Spatio-temporal patterns of heat index and heat-related Emergency Medical Services (EMS)
Analyzing racial disparities in the United States homeownership
Comparing the impacts of Covid-19 on residential rental market across rental sectors
Effects of urban environmental factors on heat-related emergency medical services (EMS) response time
Evaluating the effects of heat vulnerability on heat-related emergency medical service incidents
Extreme heat exposure and sensitivity have been a growing concern in urban regions as the effects of extreme heat pose a threat to public health, the water supply, and the infrastructure. Heat-related illnesses demand an immediate Emergency Medical Service (EMS) response since they might result in death or serious disability if not treated quickly. Despite increased concerns about urban heat waves and relevant health issues, a limited amount of r…
Hourly Associations between Heat Index and Heat-Related Emergency Medical Service (EMS) Calls in Austin-Travis County, Texas
This paper aims to investigate the following research questions: (1) what are the hourly patterns of heat index and heat-related emergency medical service (EMS) incidents during summertime?; and (2) how do the lagged effects of heat intensity and hourly excess heat (HEH) vary by heat-related symptoms? Using the hourly weather and heat-related EMS call data in Austin-Travis County, Texas, this paper reveals the relationship between heat index patt…
Combatting the mismatch
Disparities in affecting factors of housing price
Impacts of Covid-19 on bike-sharing usages in Seoul, South Korea
Shared Mobility
Hurricane Harvey
In the wake of Hurricane Harvey, multiple media sources claimed the event was an “equal opportunity” storm. These claims challenge existing social vulnerability research that finds marginalised groups have both unequal risk exposure and subsequent differential impacts from disasters (Cutter, Boruff, and Shirley 2003, “Assessing Current and Future Freshwater Flood Risk from North Atlantic Tropical Cyclones via Insurance Claims.” Scientific Reports…
Predicting and mapping neighborhood-scale health outcomes
Identifying spatiotemporal transit deserts in Seoul, South Korea
Measuring accessibility to grocery stores using radiation model and survival analysis
Toward Equitable Micromobility
This study revealed the inequitable societal impacts of E-scooters on disadvantaged populations. The study conducted a population distribution analysis to compare the use opportunities and space intrusion burdens of E-scooter sharing on four vulnerable population groups in Austin, Texas. Nearly all minority population experienced fewer E-scooter use opportunities. Ten percent of the minority population waited for a disproportionately longer time …
Taming Airbnb
How to Identify Food Deserts
Objectives. We explored new ways to identify food deserts. Methods. We estimated physical and economic access to supermarkets for 5 low-income groups in Seattle–King County, Washington. We used geographic information system data to measure physical access: service areas around each supermarket were delineated by ability to walk, bicycle, ride transit, or drive within 10 minutes. We assessed economic access by stratifying supermarkets into low, me…
Impacts of Covid-19 on bike-sharing usages in Seoul, South Korea
Access to Supermarkets and Fruit and Vegetable Consumption
Objectives. We examined whether supermarket choice, conceptualized as a proxy for underlying personal factors, would better predict access to supermarkets and fruit and vegetable consumption than mere physical proximity. Methods. The Seattle Obesity Study geocoded respondents’ home addresses and locations of their primary supermarkets. Primary supermarkets were stratified into low, medium, and high cost according to the market basket cost of 100 …
An empirical analysis of Airbnb listings in forty American cities
Disparities in affecting factors of housing price
Cities reshaped by Airbnb
In the last 10 years, Airbnb has rapidly grown from a simple, online bed and breakfast operation to a leading global hospitality service provider. Scholars have been using different spatial analysis tools to study its potential impacts on cities. To better understand Airbnb's impact this featured graphic applied a cartogram processing tool to reshape census tracts based on Airbnb listing intensity in three major US cities (New York City, Chicago,…
Bike-Sharing Station Usage and the Surrounding Built Environments in Major Texas Cities
This study analyzes the effect of different built environments on bike-share usage in nascent dock-based systems in three Texas cities. Past research offers little insight as to whether elements associated with higher bicycle usage in major cities affect ridership in secondary, developing bike-share markets within lower density American cities. In Austin and Houston, a positive relationship emerges between bike-share usage and proximity to high-c…
Measuring accessibility to grocery stores using radiation model and survival analysis
Evaluating the relationship between rail transit and industrial agglomeration
Rental Housing Spot Markets
Traditional U.S. rental housing data sources such as the American Community Survey and the American Housing Survey report on the transacted market-what existing renters pay each month. They do not explicitly tell us about the spot market-that is, the asking rents that current homeseekers must pay to acquire housing-though they are routinely used as a proxy. This study compares governmental data to millions of contemporaneous rental listings and f…
Deciphering the stroke–built environment nexus in transitional cities
From shared micro-mobility to shared responsibility
In recent years, many progressive U.S. cities have witnessed the rapid popularization of dockless small vehicles as a car-free travel alternative to meet the short distance travel demand. The research gap exists in revealing the social outcome of the massive influx of shared small vehicles on public space. To that end, this study analyzed 4,100 parking violation reports in Austin, Texas, crowdsourced from the Austin 311 non-emergency service requ…
Toward Equitable Micromobility
This study revealed the inequitable societal impacts of E-scooters on disadvantaged populations. The study conducted a population distribution analysis to compare the use opportunities and space intrusion burdens of E-scooter sharing on four vulnerable population groups in Austin, Texas. Nearly all minority population experienced fewer E-scooter use opportunities. Ten percent of the minority population waited for a disproportionately longer time …
Promoting active student travel
How to Identify Food Deserts
Objectives. We explored new ways to identify food deserts. Methods. We estimated physical and economic access to supermarkets for 5 low-income groups in Seattle–King County, Washington. We used geographic information system data to measure physical access: service areas around each supermarket were delineated by ability to walk, bicycle, ride transit, or drive within 10 minutes. We assessed economic access by stratifying supermarkets into low, me…
Access to Supermarkets and Fruit and Vegetable Consumption
Objectives. We examined whether supermarket choice, conceptualized as a proxy for underlying personal factors, would better predict access to supermarkets and fruit and vegetable consumption than mere physical proximity. Methods. The Seattle Obesity Study geocoded respondents’ home addresses and locations of their primary supermarkets. Primary supermarkets were stratified into low, medium, and high cost according to the market basket cost of 100 …
Revisiting Image of the City in Cyberspace
This research investigated people's communication of urban space as reflected in Twitter messages (tweets) during the 2012 Super Bowl. The authors archived over 600,000 tweets related to the Super Bowl from January 23 through early February 6. The authors identified 78 Indianapolis-area places or routes named in the tweets. Based on occurrence of these terms, the authors retained 9,103 city-specific messages for analysis. The frequency of such tw…
Taming Airbnb
Evaluating the relationship between rail transit and industrial agglomeration
Promoting active student travel
Integrating social equity in highway maintenance and rehabilitation programming
Bike-Sharing Station Usage and the Surrounding Built Environments in Major Texas Cities
This study analyzes the effect of different built environments on bike-share usage in nascent dock-based systems in three Texas cities. Past research offers little insight as to whether elements associated with higher bicycle usage in major cities affect ridership in secondary, developing bike-share markets within lower density American cities. In Austin and Houston, a positive relationship emerges between bike-share usage and proximity to high-c…
Deciphering the stroke–built environment nexus in transitional cities
Using Open Source Data to Identify Transit Deserts in Four Major Chinese Cities
The concept of transit deserts stems from the concept of food deserts. There is substantial research on transit deserts in developed countries. However, there is no known research that has studied this subject in Chinese cities. Using open-source data, this paper identified transit desert areas in four major Chinese cities (Beijing, Shanghai, Wuhan, Chengdu). The results show that: (1) In these four cities, the transit desert areas are mainly con…
Understanding the Shared E-scooter Travels in Austin, TX
This paper investigated the travel patterns of 1.7 million shared E-scooter trips from April 2018 to February 2019 in Austin, TX. There were more than 6000 active E-scooters in operation each month, generating over 150,000 trips and covered approximately 117,000 miles. During this period, the average travel distance and operation time of E-scooter trips were 0.77 miles and 7.55 min, respectively. We further identified two E-scooter usage hotspots…
Estimating E-Scooter Traffic Flow Using Big Data to Support Planning for Micromobility
Dockless e-scooter sharing, as a new shared micromobility service, has quickly gained popularity in recent years. In this paper, we present a practical approach to estimating e-scooter flow patterns without knowing the actual routes taken by the e-scooter riders. Our method takes advantage of a huge open dataset that contains the origins and destinations of millions of trips. We show that our models can help cities better support the emerging sha…
Rental Housing Spot Markets
Traditional U.S. rental housing data sources such as the American Community Survey and the American Housing Survey report on the transacted market-what existing renters pay each month. They do not explicitly tell us about the spot market-that is, the asking rents that current homeseekers must pay to acquire housing-though they are routinely used as a proxy. This study compares governmental data to millions of contemporaneous rental listings and f…
From shared micro-mobility to shared responsibility
In recent years, many progressive U.S. cities have witnessed the rapid popularization of dockless small vehicles as a car-free travel alternative to meet the short distance travel demand. The research gap exists in revealing the social outcome of the massive influx of shared small vehicles on public space. To that end, this study analyzed 4,100 parking violation reports in Austin, Texas, crowdsourced from the Austin 311 non-emergency service requ…
An empirical analysis of Airbnb listings in forty American cities
Cities reshaped by Airbnb
In the last 10 years, Airbnb has rapidly grown from a simple, online bed and breakfast operation to a leading global hospitality service provider. Scholars have been using different spatial analysis tools to study its potential impacts on cities. To better understand Airbnb's impact this featured graphic applied a cartogram processing tool to reshape census tracts based on Airbnb listing intensity in three major US cities (New York City, Chicago,…
Shared Mobility
Hurricane Harvey
In the wake of Hurricane Harvey, multiple media sources claimed the event was an “equal opportunity” storm. These claims challenge existing social vulnerability research that finds marginalised groups have both unequal risk exposure and subsequent differential impacts from disasters (Cutter, Boruff, and Shirley 2003, “Assessing Current and Future Freshwater Flood Risk from North Atlantic Tropical Cyclones via Insurance Claims.” Scientific Reports…
Predicting and mapping neighborhood-scale health outcomes
Identifying spatiotemporal transit deserts in Seoul, South Korea
Measuring accessibility to grocery stores using radiation model and survival analysis
Toward Equitable Micromobility
This study revealed the inequitable societal impacts of E-scooters on disadvantaged populations. The study conducted a population distribution analysis to compare the use opportunities and space intrusion burdens of E-scooter sharing on four vulnerable population groups in Austin, Texas. Nearly all minority population experienced fewer E-scooter use opportunities. Ten percent of the minority population waited for a disproportionately longer time …
Impacts of Covid-19 on bike-sharing usages in Seoul, South Korea
Effects of urban environmental factors on heat-related emergency medical services (EMS) response time
Evaluating the effects of heat vulnerability on heat-related emergency medical service incidents
Extreme heat exposure and sensitivity have been a growing concern in urban regions as the effects of extreme heat pose a threat to public health, the water supply, and the infrastructure. Heat-related illnesses demand an immediate Emergency Medical Service (EMS) response since they might result in death or serious disability if not treated quickly. Despite increased concerns about urban heat waves and relevant health issues, a limited amount of r…
Business (20 obras) · Engineering (19 obras) · Geography (18 obras) · Urban Transport and Accessibility (18 obras) · Computer Science (17 obras) · Transport engineering (14 obras) · Economics (11 obras) · Medicine (10 obras) · Population (10 obras) · Environmental health (9 obras)