Xintao Liu
Biographic Data
| ID | 3584333 |
|---|---|
| NAME | Xintao Liu |
| GIVEN NAMES | Xintao |
| FAMILY NAME | Liu |
| SIGNATURE | LIU X |
| AFFILIATIONS | Hong Kong Polytechnic University |
| ORCID | 0000-0002-7323-9878 |
| VERIFIED | Yes |
| TOTAL WORKS | 50 |
| TOTAL CITATIONS | 37 |
| AUTHOR COUNT | 50 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2013 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 4 |
Geographies of online food delivery
The rapid growth of online food delivery consumption (OFDC) has revolutionized dining patterns, particularly in culturally rich regions like the South China Sea Region (SCSR), where digital platforms like Foodpanda enhance access to diverse culinary options. Despite this transformation, existing studies rarely explore the cross-regional dynamics of OFDC or globalization’s impact on culinary preferences in such areas. This research investigates th…
Data driven analysis of urban odour perception
Unveiling industrial functional networks in megacity regions
Urban areas function as complex systems that support a diverse range of socioeconomic activities, with industries clustering in specific regions according to different sectors. Although many studies describe and map the spatial distribution of industrial activities, few examine the complex interactions between industrial functions. This study presents a data-driven perspective to investigate the connections among different industrial functions, f…
Spatiotemporal dynamics of violence in social unrest events based on geo-social media data
Unrest events occur in the society in various forms. Some of them can escalate into violence, causing severe damage to property, individuals, and society. Recently, social media, together with AI, has become a crucial tool for monitoring and investigating the development and impact of unrest events. This research aims to comprehensively analyze social media data to explore the spatiotemporal patterns of activities and violence associated with unr…
Suicide rate under Covid-19's shadow
As public health crises like COVID-19 exacerbate urban suicide risks, understanding their spatial and temporal dynamics and environment association mechanisms is increasingly critical in high-density metropolis. While existing research often examines isolated pandemic periods or limited environment factors, integrated spatiotemporal perspectives on suicide rates (SuR), particularly across full pandemic cycles, remain underexplored. This study add…
Digital pulse of inclusion
Natural climate change and social population ageing reconstruct the flood risk gap between inland and coastal cities in China
Our world is facing two important challenges, climate change and population aging. Extensive research provides insights into their impact on flood risk, while the extent to how inland and coastal cities are unequally affected remains unclear. This study uses the precipitation and population data across ten years with geographic and statistical methods to show the flood risk gap between inland and coastal cities has been narrowed in China. The res…
Automated Digitization Approach for Road Intersections Mapping
Effective maintenance and management of road infrastructure are essential for community well-being, economic stability, and cost efficiency. Well-maintained roads reduce accident risks, improve safety, shorten travel times, lower vehicle repair costs, and facilitate the flow of goods, all of which positively contribute to GDP and economic development. Accurate intersection mapping forms the foundation of effective road asset management, yet tradi…
Understanding the Impact of Street Environments on Traffic Crash Risk from the Perspective of Aging People
As the aging population grows rapidly, the traffic risks faced by older adults have become a growing concern for age-friendly transportation planning. While prior studies have investigated the relationship between traffic crashes and the built environment, they often treat the population as homogeneous and ignore the fine-grained characteristics of the street environment. This study addresses these gaps by examining how fine-grained street enviro…
Worse or better? Incorporating the time perspective into residents’ life satisfaction during temporary housing
Spatial–temporal effects of industrial pollutants and economic development on depopulation in the mega urban agglomeration
The negative effects of industrial pollutants on the whole environment have long been a contentious issue in urbanization. While studies have analyzed the impacts of the economy and industry on depopulation separately, few focus on their combined and interactive effects at the grid level. This study investigates the complex impacts of depopulation from 2010 to 2020 in China's Beijing-Tianjin-Hebei agglomeration. Using remote-sensing and geoinform…
Time sensitivity and travel behavior patterns
Charting the progress and future directions of disability studies in human geography
Unveiling the core-periphery dynamics and driving factors of intercity scientific mobility in China
Deciphering Urban Soundscapes
The impact of sensory experiences on physical and mental health in urban environments has gained significant attention, particularly the influence of soundscapes in waterfronts development . This study employed social media data from Twitter to quantitatively analyse the soundscape of Hong Kong Victoria Harbour waterfronts, offering a novel perspective in urban sensory research. Through comparative analysis between tourists and residents, it unco…
Wheelchair accessibility to public facilities via transits and analysis of delay factors—A case study of Shanghai, China
Modeling the spatiotemporal transmission of Covid-19 epidemic by coupling the heterogeneous impact of detection rates
City centers really lived up to the hype? Evidence from human perceptions of over 4000 communities in China
Path dependency of urban resilience to recurring Covid-19 waves
Assessing spatial configuration of barrier-free facilities from the perspective of age-friendliness
Digitalization era
Exploring the Nonlinear Interplay between Urban Morphology and Nighttime Thermal Environment
Unraveling intra-urban freight parking patterns
From physical space to cyberspace
Predicting the network shift of large urban agglomerations in China using the deep-learning gravity model
Characterizing metro stations via urban function
Predicting the network shift of large urban agglomerations in China using the deep-learning gravity model
A data-driven perspective for sensing urban functional images
Urban agglomeration economies and their relationships to built environment and socio-demographic characteristics in Hong Kong
Scaling of Geographic Space as a Universal Rule for Map Generalization
Map generalization is a process of producing maps at different levels of detail by retaining essential properties of the underlying geographic space. In this article, we explore how the map generalization process can be guided by the underlying scaling of geographic space. The scaling of geographic space refers to the fact that in a geographic space, small things are far more common than large ones. In the corresponding rank-size distribution, th…
Reinterpreting activity space in tourism by mapping tourist-resident interactions in populated cities
This study draws upon the concept of ‘activity space’ rooted in human geography and applies it in a contemporary urban context – Macao. Noting the growing trend of urbanisation and the blurring boundary of tourist-resident spaces, this research systematically analyses the mapping and structure of tourist and resident activity spaces, and interprets the tourist-resident interactions through their spatial–temporal behaviours. Global Positioning Sys…
Spatial-interaction network analysis of built environmental influence on daily public transport demand
Space-time dynamics of cab drivers' stay behaviors and their relationships with built environment characteristics
Time-geographic relationships between vector fields of activity patterns and transport systems
Charting the progress and future directions of disability studies in human geography
Deciphering Urban Soundscapes
The impact of sensory experiences on physical and mental health in urban environments has gained significant attention, particularly the influence of soundscapes in waterfronts development . This study employed social media data from Twitter to quantitatively analyse the soundscape of Hong Kong Victoria Harbour waterfronts, offering a novel perspective in urban sensory research. Through comparative analysis between tourists and residents, it unco…
City centers really lived up to the hype? Evidence from human perceptions of over 4000 communities in China
Unraveling intra-urban freight parking patterns
A Cross-Scale Representation of Tourist Activity Space
Destination, as a key concept in tourism geography, has largely determined the scale at which tourist activity space was modeled and studied. Existing studies usually focused on investigating tourists’ activities and movements either at the intradestination (e.g., within a city) or interdestination scale. Although useful in numerous research contexts, these models based on fixed spatial scales are incapable of portraying the complex spatial struc…
Scaling of Geographic Space as a Universal Rule for Map Generalization
Map generalization is a process of producing maps at different levels of detail by retaining essential properties of the underlying geographic space. In this article, we explore how the map generalization process can be guided by the underlying scaling of geographic space. The scaling of geographic space refers to the fact that in a geographic space, small things are far more common than large ones. In the corresponding rank-size distribution, th…
Time-geographic relationships between vector fields of activity patterns and transport systems
Analysis of the Temporal Characteristics of the Elderly Traveling by Bus Using Smart Card Data
Many cities around the world face the challenge of an aging population. A full understanding of the mobility behavior characteristics of the elderly is one necessary and urgent consideration as regards the current aging trend if sustainable urban development is to be fully realized. This paper presents a systematic approach to analyzing the dynamic mobility characteristics of the elderly who travel by bus using smart card big data. The characteri…
Space-time dynamics of cab drivers' stay behaviors and their relationships with built environment characteristics
A Data-Driven Framework for Analyzing Spatial Distribution of the Elderly Cardholders by Using Smart Card Data
In this era of population aging, it is essential to understand the spatial distribution patterns of the elderly. Based on the smart card data of the elderly, this study aims to detect the home location and examine the spatial distribution patterns of the elderly cardholders in Beijing. A framework is proposed that includes three methods. First, a rule-based approach is proposed to identify the home location of the elderly cardholders based on ind…
A Proposed Framework for Identification of Indicators to Model High-Frequency Cities
A city is a complex system that never sleeps; it constantly changes, and its internal mobility (people, vehicles, goods, information, etc.) continues to accelerate and intensify. These changes and mobility vary in terms of the attributes of the city, such as space, time and cultural affiliation, which characterise to some extent how the city functions. Traditional urban studies have successfully modelled the ‘low-frequency city’ and have provided…
Advances in urban informatics
Reopening International Borders without Quarantine
With the COVID-19 vaccination widely implemented in most countries, propelled by the need to revive the tourism economy, there is a growing prospect for relieving the social distancing regulation and reopening borders in tourism-oriented countries and regions. This need incentivizes stakeholders to develop border control strategies that fully evaluate health risks if mandatory quarantines are lifted. In this study, we have employed a computationa…
Evaluating the Inequality of Medical Service Accessibility Using Smart Card Data
The measurement of medical service accessibility is typically based on driving or Euclidean distance. However, in most non-emergency cases, public transport is the travel mode used by the public to access medical services. Yet, there has been little evaluation of the public transport system-based inequality of medical service accessibility. This work uses massive real smart card data (SCD) and an improved potential model to estimate the public tr…
Spatial-interaction network analysis of built environmental influence on daily public transport demand
Urban agglomeration economies and their relationships to built environment and socio-demographic characteristics in Hong Kong
A Vector Field Approach to Estimating Environmental Exposure Using Human Activity Data
Environmental exposure of people plays an important role in assessing the quality of human life. The most existing methods that estimate the environmental exposure either focus on the individual level or do not consider human mobility. This paper adopts a vector field generated from the observed locations of human activities to model the environmental exposure at the population level. An improved vector-field-generation method was developed by co…
Walk this way
Accessibility and mobility are positioned differently at the heart of transportation planning; whilst a transportation system with high accessibility will not necessarily be able to support high mobility. In this short article, we evaluate and visualize the accessibility and mobility of pedestrian networks around the metro station areas in a transit-oriented city – Hong Kong. By using the newly released 3D pedestrian network for the whole of Hong…
Spatial and functional organizations of industrial agglomerations in China’s Greater Bay Area
Industrial agglomeration is a concentration phenomenon of economic activities in cities. In recent years, the geographic and functional structures of industries are constantly changing due to global industrialization and regional urbanization. Thus far, a scarcity of research has investigated spatial-functional organizations of sectoral industries in urbanized megaregions. By using points of interest (POIs) data collected in the Guangdong-Hong Ko…
How Sports Event Volunteer Management Affects Volunteers’ Satisfaction and Engagement
This study investigated the role of social capital in the relationship between sports event volunteer management and volunteers’ attitude and behavior. Social capital was discovered to mediate the relationships of sports event volunteer management with volunteers’ satisfaction and work engagement. These relationships were empirically examined by conducting a survey of 303 volunteers from the 2016 Wuhan Open and 2016 Wuhan Marathon. The results re…
Characterizing metro stations via urban function
A data-driven perspective for sensing urban functional images
Characterizing the spatial-functional network of regional industrial agglomerations
The geographic disparity of agglomeration economies
Spatial variations of the third and fourth Covid-19 waves in Hong Kong
Since the first confirmed case was reported in January 2020, Hong Kong has experienced multiple waves of COVID-19 outbreaks. Recent literature has explored the spatial patterns of disease incidence and their relationships with the built environment and demographic characteristics. Nonetheless, few studies aim at the comparative patterns of different epidemic waves occurring in the same spatial context. This study analyses spatial patterns of the …
Inferring household size distribution and its association with the built environment using massive mobile phone data
A Cross-Scale Representation of Tourist Activity Space
Destination, as a key concept in tourism geography, has largely determined the scale at which tourist activity space was modeled and studied. Existing studies usually focused on investigating tourists’ activities and movements either at the intradestination (e.g., within a city) or interdestination scale. Although useful in numerous research contexts, these models based on fixed spatial scales are incapable of portraying the complex spatial struc…
Consumer Acceptance of Sports Wearables
Based on the technology acceptance model (TAM), this paper discusses how the functional attributes and design characteristics of sports wearable devices affect users' attitude and behavior. In order to estimate the relationship between variables, structural equation model (SEM) was used to analyze the data from questionnaire. By analyzing the relationship among data analysis, real-time monitoring, appearance design, simple operation, perceived us…
Assessing spatial configuration of barrier-free facilities from the perspective of age-friendliness
Digitalization era
Geography (30 works) · Computer Science (26 works) · Urban Transport and Accessibility (25 works) · Human Mobility and Location-Based Analysis (21 works) · Engineering (19 works) · China (15 works) · Economic geography (14 works) · Transport engineering (12 works) · Cartography (11 works) · Psychology (11 works)