Suhong Zhou

• Sun Yat-sen University

Spatial fixity, measuring the extent to which individual activities are confined to specific locations, is central to geographical studies on daily activities. Although recent studies have identified factors contributing to the variability of daily activity spatial fixity, there is a dearth of longitudinal observations to understand its evolution o...

Accurately identifying hollow villages has long been a challenge in rural governance and revitalization. Traditional field surveys require significant human and material resources, making large-scale identification difficult. This study develops a model that integrates static and dynamic data for hollow village identification. The model uses a ResN...

Equal exposure to quality-built environments fosters livable, inclusive cities. The neighborhood effect averaging problem (NEAP) suggests that daily mobility plays a crucial role in shaping environmental exposure. This study aims to unveil the NEAP in built-environment quality exposure. Street-view image data and mobile phone signaling data are cou...

With China’s remarkable progress in smart city and Information and Communication Technologies (ICTs), novel technologies have gradually permeated through research on micro-scale environmental exposure research. Consequently, the research has undergone a series of transitions and seen new progress. This article reviews and summarizes three transitio...

Non-mandatory activities (e.g., shopping and leisure) are irregular in space and time, resulting in complex interactions between individuals and urban spaces. Understanding the associated factors of non-mandatory activities is vital for effective urban transport planning and management. This study uses travel survey data from Guangzhou, China, and...

Learning from the COVID-19 pandemic is vital for future global health crises. Forecasting pandemic spread across countries in the presence of viral mutations, such as SARS-CoV-2 variant strains, remains a challenge. Previous studies indicate spatial and temporal regularities in SARS-CoV-2 variant distribution, yet limitations persist: (1) static ge...

It is common to observe the epidemic risk perception (ERP) and a decline in subjective well-being (SWB) in the context of public health events, such as Corona Virus Disease 2019 (COVID-19). However, there have been few studies exploring the impact of individuals’ ERP within living space on their SWB, especially from a geographical and daily activit...

The difference in the individuals’ preference of activity destination choice is a new explanation for the activity-space segregation. This study investigates individuals’ preference in the destination choice for their daily activities. It uses revealed preference survey for the choice of the activity destination, and mobile phone dataset for the am...

Introduction: Awareness is amounting that understanding the people-animal-environment relationships and further considering it in city design are important to make future cities and society more resilient and sustainable. The presence of green space stimulates recreational walking behaviour. Also, animals in urban outdoor spaces have a restorative...

The value of linking urban environment and subjective well-being (SWB) is now well recognized. But whether the geographical context inside and outside the neighborhood has differential influence on long- and short-term SWB remains unclear. Based on the activity perspective, we used survey data from Guangzhou, China, integrating GPS data, portable e...

Background: Adolescents' daily active travel (AT) has positive health effects. However, previous studies had paid little attention on the differences between the streetscape characteristics-AT relationship on the weekdays and weekends, and most of them only focused on the environmental exposure around home and schools. Methods: This study used data...

As people's needs shift from the material level to the spiritual level, the safety perception of city is increasingly important to the sound development of society. In the meanwhile, there are group differences in the spatial distribution of safety perception, and understanding these differences and their environmental influences can help to respec...

Immigrants (foreign-born United States [US] citizens) generally have lower utilization of mental health services compared with US-born counterparts, but extant studies have not investigated the disparities in mental health service utilization within immigrant population nationwide over time. Leveraging mobile phone-based visitation data, we estimat...

This study advances the measurement of community social context by introducing the daily dynamic perspective to promote a better understanding of the relationship between community social context and community attachment. It measured the social context averaging or polarization (SCAP) effect of communities every 3 h using census and cell phone data...

Urban noise pollution and health hazards have become serious social problems and challenges. Noise prevention and control is the most cost-effective health strategy. However, in urban planning and noise control, reliable evidence is still lacking on individual spatiotemporal environmental noise exposure and its mental health effects. This study use...

Abstract: Ecological conservation red line is an important initiative for ecological civilization construction in China. Studies and works have been conducted to delineate the ecological conservation red line using remote sensing and manual survey methods. However, the traditional ecological assessment methods ignore the impact of dynamic elements...

Activity-space segregation is a new topic in urban segregation studies. The existing literature did not fully explain its mechanisms. In this study, we tested the hypothesis whether activity-space segregation is influenced by individual daily activity patterns. The dynamic ambient population that individuals interact with was identified with mobile...

In the context of rapid urbanization and the “Healthy China” strategy, neighborhood environments play an important role in improving mental health among urban residents. While an increasing number of studies have explored the linear relationships between neighborhood environments and mental health, much remains to be revealed about the nonlinear he...

Research on environmental exposure and its impacts on people's mood has attracted increasing attention. Most studies focus on the spatiality of geographic contexts, but they neglect the influence of temporality in the relationships between environments and mood. To this end, a survey was conducted in January 2019 in Guangzhou, China, and measured d...

we employed generalized structural equation models to examine 1) the relationships between objective and perceived streetscape characteristics and adolescents' active school travel and 2) the mediating roles of perceived safety, walkability, and air pollution. Results showed that street safety, vitality, greenery, and vehicle volume were positively...

Urban green space (UGS) plays an essential role in sustainable urban development and is closely related to public health and human well-being. The inequity of UGS violates environmental justice and threatens the life quality of residents. Although previous studies have examined UGS distribution and the disparity between social groups, they seldom c...

A tremendous amount of research use questionnaires to obtain individuals’ fear of crime and aggregate it to the neighborhood level to measure the spatial distribution of fear of crime. However, the cost of using questionnaires to measure the large-scale spatial distribution of fear of crime is high. The built environment is known to influence peopl...

With rapid global urbanization, the importance of understanding relationships between the changing environment and wellbeing is being increasingly recognized. However, there is still a lack of understanding of how long-term residential environment exposure affects subjective wellbeing under the dual changes of geographical environment and residenti...

While there are plenty of studies on the effects of neighborhood and park greenness on personal overall satisfaction and walking behavior, the relationship between street greenness exposure and walking satisfaction has received limited attention. Also, the possible pathways by which street greenness exposure affects walking satisfaction need to be...

With the rapid growth in both urbanization and the ageing of the population, elderly migrants have become a more prominent group in urban China. Previous studies have shown that elderly migrants are a vulnerable group in terms of subjective well‐being (SWB) and studies have emphasized the role of their socioeconomic status (SES) and family‐related...

With the great pressure of modern social life, the problem of residents’ subjective well-being has attracted scholars’ attention. Against the background of institutional transformation, China has a special social stratification structure. The socio-economic resources and living needs of different social classes are different, resulting in differenc...

PM2.5 pollution imposes substantial health risks on urban residents. Previous studies mainly focused on assessing peoples' exposures at static locations, such as homes or workplaces. There has been a scarcity of research that quantifies the dynamic PM2.5 exposures of people when they travel in cities. To address this gap, we use cellphone positioni...

Risk assessment of the intra-city spatio-temporal spreading of COVID-19 is important for providing location-based precise intervention measures, especially when the epidemic occurred in the densely populated and high mobile public places. The individual-based simulation has been proven to be an effective method for the risk assessment. However, the...

Rich literature has examined the impact of the built environment on commuting distance. Linear models assume that the influence of the built environment is spatially homogeneous. However, given the spatial heterogeneity of urban space, conclusions might be different or even be contrary. The influence of the built environment might also be different...

Fraud crime against seniors has become a serious social problem both at home and abroad. While most of the relevant research focuses on non-contact fraud against seniors, a few studies attend to contact fraud targeted at seniors. By constructing a theoretical framework of “environment–activity–fraud victimization” based on the integration of multip...

The abilities to predict tourist movements are critical to many urban applications, such as travel recommendations , targeted advertising, and infrastructure planning. Despite its importance, our understanding on the movement predictability of urban tourists and visitors is still limited, partially due to difficulties in accessing large scale mobil...

[Abstract] In recent years, domestic cities are experiencing high-quality development and transformation, and more and more attention has been paid to spatial vitality. Studies on the influencing physical factors of spatial vitality are plenty, but research on non-physical factors such as the public perception of spatial quality is rare. This artic...

Abstract: Promoting adolescents’ daily active travel to school (ATS) may be critical for their health and wellbeing. Based on survey data of 473 adolescents and street view images, we employed generalized structural equation models to examine 1) the relationship between objective and perceived streetscape characteristics and adolescents’ ATS and 2)...

Past research has failed to find consistent relationships between criminal victimization and fear of crime. Except for neighborhood disorder and crime rate, few studies have examined whether other neighborhood conditions matter the victimization—fear relationship. Using survey data in Guangzhou neighborhoods, the present analysis employs multinomia...

Natural environments especially greenspace may play an important role in enhancing people’s mental health. However, the existing literature mainly assesses greenspace exposure in people’s residential neighbourhood ignoring the dynamic nature of daily movements and residential histories. Also, most research assesses greenspace from an ‘over-head’ pe...

A UK-China Researcher Link Workshop: Rethinking Healthy City in the post-COVID19 era: Exposure, Mobility and Inequality

Research on the associations between environmental exposures and mental health has attracted considerable attention. Most studies to date have mainly estimated environmental health effects based on static geographic contexts (e.g., residential neighborhoods, administrative units), ignoring the dynamic nature of individual spatiotemporal behavior, w...

The walkability of a neighborhood is closely related to residents’ travel behavior and daily life and, ultimately, their health and wellbeing. Although existing studies in this area have reached some enlightening conclusions, few of them have considered residents’ travel attitudes and preferences, or the mediating role of commute mode. Do travel at...

Optimizing allocation of vaccine, a highly scarce resource, is an urgent and critical issue during fighting against on‐going COVID‐19 epidemic. Prior studies suggested that vaccine should be prioritized by age and risk groups, but few of them have considered the spatial prioritization strategy. This study aims to examine the spatial heterogeneity o...

Fine particulate matter (PM 2.5 ) is harmful to human health. Although the relationship between urban land use and PM 2.5 has been studied in recent years, there has been little consideration of the relationship between land use structure and PM 2.5 spatiotemporal patterns at the microscale. Based on mobile monitoring PM 2.5 data and point of inter...

The relationship between built environment and jobs-housing balance has been discussed at either residence or workplace in literature. Less attention has been paid to both perspectives simultaneously. Built environment may have different relationships with home-based and work-based jobs-housing balance from a single perspective. However, the differ...

Based on an offender spatial decision-making perspective, this burglary target location choice study aims to understand how physical and social barriers affect why residential burglars commit their crimes at particular locations in a major Chinese city. Using data on 3860 residential burglaries committed by 3772 burglars between January 2012 and Ju...

In recent decades, China has experienced rapid urbanisation and institutional transition. Most studies do not test the complex impact of residential mobility at different life course stages on subjective well‐being in later life, especially in the context of this rapid transition of Chinese society. Using the complete residential mobility history o...

The research interest of urban researchers and geographers in the relationship between urban environments and happiness has been increasing. Previous studies have mostly focused on people’s long-term overall wellbeing. However, there is limited evidence that momentary happiness is associated with immediate urban environments. This study provides ne...

The importance of combining spatial and temporal aspects has been increasingly recognized over recent years, yet pertinent pattern analysis methods in place-based crime research still need further development to explicitly indicate spatial-temporal localities of pertinent factors’ influence ranges. This paper proposes an approach, Spatial-Temporal...

PM2.5 pollution poses a serious health risk to residents. In recent years, individual exposure to PM2.5 in daily activities has received much attention, but the impact of different activities at different times and spaces on PM2.5-triggered individual health risks has been ignored. In this paper, the residents’ activity diaries and the data on the...

Housing is an important social determinant of mental health. However, few studies simultaneously measure the objective housing status (i.e., housing tenure, living space, housing conditions, and housing stability) and subjective housing status (i.e., housing satisfaction) as well as examine their effects on people’s mental health (i.e., stress, anx...

Previous literature has examined the relationship between the amount of green space and perceived safety in urban areas, but little is known about the effect of street-view neighborhood greenery on perceived neighborhood safety. Using a deep learning approach, we derived greenery from a massive set of street view images in central Guangzhou. We fur...

The study of spatial-temporal behavior has attracted much attention in recent years. This paper summarizes the progress and the main perspectives of urban spatial-temporal behavior research in China. Some case studies are introduced from the following three aspects: spatial-temporal agglomeration and heterogeneity, spatial-temporal correlation and...

Environmental health effects during urbanization have attracted much attention. However, knowledge is lacking on the relationship between long-term cumulative residential environment and health effects on individuals during rapid transformations in urban physical and social space. Taking Guangzhou, China, as a case example, this study analyzed the...

Understanding the influencing factors of residents’ CO2 emissions from travel is of importance for developing low-carbon transportation and land-use policies. Based on the 2015 travel survey data of Guangzhou, China, and decision tree analysis, this study identifies the determinants of CO2 emissions from different types of trips by quantifying the...

Background Noise annoyance is considered to be the most widespread and recognized health effect of environmental noise. Previous research is mostly based on the static study of residential environmental noise, but few studies have focused on the effects of noise exposure in different activity contexts on real-time annoyance. The two deficiency are...

Fear of crime can lead to lower satisfaction with life and subjective well-being. The indicators of fear of crime vary from the social and cultural context, and the hukou (household registration) status causes unequal rights between local hukou and non-local hukou residents in China. To improve people’s perception of safety, this study takes hukou...

This study developed a new approach to link residents' daily travel behavior and their socio-economic attributes by inferring residents’ income level from their activity space, activity sequence, and geographic exposure. A classification and regression tree (CART) analysis on data from Guangzhou, China provided three key outcomes. First, residents'...

The bus plays a crucial role in the daily travel of urban residents. Previous research on bus micro-environmental exposures and their adverse impacts on passengers’ health and comfort has attracted considerable attention. However, few studies to date have explored the correlation between bus micro-environmental exposures and passengers’ momentary m...

Background: Urban residents from the developing world have increasingly adopted a sedentary lifestyle and spend less time on physical activities (PA). Previous studies on the association between PA facilities and individuals' PA levels are based on the assumption that individuals have opportunities to use PA facilities within neighborhoods all day...

Environment and human mobility have been considered as two important factors that drive the outbreak and transmission of dengue fever (DF). Most studies focus on the local environment while neglecting environment of the places, especially epidemic areas that people came from or traveled to. Commuting is a major form of interactions between places....

Objective According to routine activity theory and crime pattern theory, crime feeds on the legal routine activities of offenders and unguarded victims. Based on this assumption, the present study investigates whether daily mobility flows of the urban population help predict where individual thieves commit crimes. Methods Geocoded tracks of mobile...

The relationship between location and land use patterns is one of the classic theoretical issues in urban studies. Classic models based on the monocentricity hypothesis have limitations in the interpretation of modern urban structure. China has experienced institutional transformation in recent decades, and the interaction of national government po...

Research on the relationship between built environment and PM2.5 has attracted notable attention during the past decades. However, previous studies were less to test the spatial-temporal heterogeneity of on-road PM2.5 and its related factors at micro scale. To this end, collecting high-resolution PM2.5 data by mobile monitoring along different road...

Research on the relationship between neighborhood context and health outcome has attracted notable attention. However, few studies examine and compare the associations between the objective and subjective neighborhood environment and different dimensions of health. To this end, high-resolution remote sensing images and points-of-interest (POIs) dat...

City-region has gradually become a widespread theoretical and practical phenomenon in the globalization process around the world. Cross-border activities take place during the process of regional integration. Relevant studies, however, rarely concern the cross-border issue from the social network perspective. Therefore, this paper takes Guang-Fo（Gu...

Previous studies on the effects of greenspace exposure on health are largely based on static contextual units, such as residential neighborhoods, and other administrative units. They tend to ignore the spatiotemporal dynamics of individual daily greenspace exposure and the mediating effects of specific activity type (such as physical activity). The...

Research on journey-to-crime distance has revealed the importance of both the characteristics of the offender as well as those of target communities. However, the effect of the home community has so far been ignored. Besides, almost all journey-to-crime studies were done in Western societies, and little is known about how the distinct features of c...

Urban passenger travel is a major source of greenhouse gas emission. For China, understanding how passenger transport CO2 emission varies within cities is constrained by data availability, which limits development of mitigation policies and interventions targeted at specific areas or populations. We address this problem by applying an improved bott...

Opportunity theories and ecological theories are commonly used to explain spatial crime patterns, but diurnal variations in these patterns have received little attention. Furthermore, the theories have been developed in Western countries, and it has remained unclear whether they are also applicable in China, and how their core concepts can be measu...

The research on adolescents' health is one of the main topics in the field of health geography. The health problems in one's teen age tend to have some potential influence in his adulthood, especially the health behaviors. Compared to adult, drug abuse of a teenager is more harmful to one's brain and more likely to lead to addiction. The study of f...

The literature shows that offenders’ subsequent crime location choices are affected by their prior crime location choices. However, the published studies have focused on the influence of time and place of a previous crime, without testing the impact of whether the offender was arrested during the act of the prior crime. On the basis of the literatu...

People under emergencies will choose different traffic modes (walking, driving, etc.) for evacuation. In this circumstance, the conflicts of the mixed flows (pedestrians and vehicles) at various locations in the network can be critical to the operational efficiency of the evacuation activities. This paper proposes an evacuation network optimization...

Traditionally, static units of analysis such as administrative units are used when studying obesity. However, using these fixed contextual units ignores environmental influences experienced by individuals in areas beyond their residential neighborhood and may render the results unreliable. This problem has been articulated as the uncertain geograph...

In recent years, it has increasingly been recognized that due to the uncertain geographic context problem caused by daily human mobility, the residential population is too static to serve as a valid measure of the population at risk for criminal victimization. Various alternative measures have been suggested instead. Guided by the routine activity...

Previous behavioral studies on urban structure have been limited by the scale, accuracy, or promptness in obtaining statistical data used for delimiting retail center boundaries and hierarchical analysis. Using a large amount of GPS-enabled taxi data from Guangzhou, China, this research attempts to delimit the boundaries of retailing centers and ex...

Purpose To examine the impact of public bus system on spatial burglary pattern in a Chinese urban context, as well as the spatial variation of this impact. Methods Local Moran's I, boxplot-based classification, geo-visualization, Chi-square test, and correlation analysis are used to explore the spatial coupling relationships between bus stops and...