Bochu Liu
Biographic Data
| ID | 3635533 |
|---|---|
| NAME | Bochu Liu |
| GIVEN NAMES | Bochu |
| FAMILY NAME | Liu |
| SIGNATURE | LIU B |
| AFFILIATIONS | Tongji University |
| ORCID | 0000-0002-0735-8000 |
| VERIFIED | Yes |
| TOTAL WORKS | 13 |
| TOTAL CITATIONS | 9 |
| AUTHOR COUNT | 13 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2021 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
An economic analysis of the impacts of local authority takeaway management zones around schools in England
Higher numbers of hot food takeaways in local neighbourhood food environments can be associated with increased exposure to, and consumption of, food that is high in fat and salt, and low in health promoting nutrients. Takeaway management zones enable local authorities in England to limit the number of new hot food takeaways opening. The impacts of takeaway management zones on local economies are currently unknown and yet commercial and other acto…
An Improved Measure for Exploring Sociospatial Inequalities in Access to Online Fresh Food
Access to fresh food is essential for promoting healthy diets, yet existing measures of online food access remain limited and often overlook socioeconomic disparities at fine spatial scales. This study develops an improved measure of online food accessibility that accounts for consumer purchasing behavior at varying distances. It adapts the enhanced two-step floating catchment area (E2SFCA) method using an empirically derived, nonmonotonic distan…
Mobility, ICT, and health: A built environment investigation of older Chinese migrants’ social isolation and loneliness
Results indicate that ICT use might have limited ability to reduce loneliness and support mental health when mobility is limited. Addressing older migrants' barriers to community mobility is critical to reducing feelings of loneliness
Alone together? A time use approach for examining socializing when travel is limited
Migrant populations access different social networks due to their cultural contexts and the locations of their social relationships. The COVID‐19 pandemic generated concern about social isolation among older adults. During Ontario's extended lockdown, we investigated the social behaviours of a generally sedentary older Chinese migrant community (n = 77) in the Greater Toronto Area. Using single‐day activity diaries, we grouped respondents using a…
Changes in the number of new takeaway food outlets associated with adoption of management zones around schools: A natural experimental evaluation in England
By the end of 2017, 35 local authorities (LAs) across England had adopted takeaway management zones (or "exclusion zones") around schools as a means to curb proliferation of new takeaways. In this nationwide, natural experimental study, we evaluated the impact of management zones on takeaway retail, including unintended displacement of takeaways to areas immediately beyond management zones, and impacts on chain fast-food outlets. We used uncontro…
Changes in the number and outcome of takeaway food outlet planning applications in response to adoption of management zones around schools in England: A time series analysis
Physical exposure to takeaway food outlets ("takeaways") is associated with poor diet and excess weight, which are leading causes of excess morbidity and mortality. At the end of 2017, 35 local authorities (LAs) in England had adopted takeaway management zones (or "exclusion zones"), which is an urban planning intervention designed to reduce physical exposure to takeaways around schools. In this nationwide, natural experimental study, we used int…
Integrating coordination of food purchasing into activity space-based food environment research: Toward a household perspective
Time-Geographic Project of Household Food Provision: Conceptualization and a Pilot Case Study
Geographers and health researchers routinely analyze data on food-related behaviors to understand potential relationships between the food environment and diet. Analytical uncertainties arise, however, from discounting the sequential connections and household coordination of various food tasks. This study employed the time-geographic construct of the project, which is defined as a series of goal-oriented activities conducted by one or more indivi…
Disentangling Time Use, Food Environment, and Food Behaviors Using Multi‐Channel Sequence Analysis
Geographic access to food retailers has long been considered an important determinant of food‐related behaviors. Despite methodological improvements in assessing food environments, their associations with food behaviors have remained inconsistent. We argue that one possible reason for these inconsistencies is the lack of information about how an individual’s time use dynamics play out in space. To this point, few studies on the combined effects o…
Who's cooking tonight? A time-use study of coupled adults in Toronto, Canada
Understanding how coupled adults arrange food-related labor in relation to their daily time allocation is of great importance because different arrangements may have implications for diet-related health and gender equity. Studies from the time-use perspective argue that daily activities such as work, caregiving, and non-food-related housework can potentially compete for time with foodwork. However, studies in this regard are mostly centered on in…
Comparing Household and Individual Measures of Access through a Food Environment Lens: What Household Food Opportunities Are Missed When Measuring Access to Food Retail at the Individual Level
Geographers and public health researchers have long been interested in social, spatial, and economic factors that drive access and exposure to food retail. A growing body of evidence draws on mobility data to capture locations accessed by individuals beyond the home address. Given that food-related activities are shared by household members and often gendered, taking an individual-level approach might limit researchers’ ability to accurately desc…
Food Environments
The food environment is a term used to describe the geographies of food in the built environment. A variety of methods have been used to describe food environments and analyze their associations with socioeconomic characteristics, food purchasing and consumption behaviors, and health outcomes. While spatial patterns in food environments are consistently identified, their relationships with the aforementioned variables remain unclear. Future direc…
Riders Who Avoided Public Transit During Covid-19: Personal Burdens and Implications for Social Equity
Millions of North Americans stopped riding public transit in response to COVID-19. We treat this crisis as a natural experiment to illustrate the importance of public transit in riders’ abilities to access essential destinations. We measured the impacts of riders forgoing transit through a survey of transportation barriers completed by more than 4,000 transit riders in Toronto and Vancouver (Canada). We used Heckman selection models to predict si…
Comparing Household and Individual Measures of Access through a Food Environment Lens: What Household Food Opportunities Are Missed When Measuring Access to Food Retail at the Individual Level
Geographers and public health researchers have long been interested in social, spatial, and economic factors that drive access and exposure to food retail. A growing body of evidence draws on mobility data to capture locations accessed by individuals beyond the home address. Given that food-related activities are shared by household members and often gendered, taking an individual-level approach might limit researchers’ ability to accurately desc…
Who's cooking tonight? A time-use study of coupled adults in Toronto, Canada
Understanding how coupled adults arrange food-related labor in relation to their daily time allocation is of great importance because different arrangements may have implications for diet-related health and gender equity. Studies from the time-use perspective argue that daily activities such as work, caregiving, and non-food-related housework can potentially compete for time with foodwork. However, studies in this regard are mostly centered on in…
Time-Geographic Project of Household Food Provision: Conceptualization and a Pilot Case Study
Geographers and health researchers routinely analyze data on food-related behaviors to understand potential relationships between the food environment and diet. Analytical uncertainties arise, however, from discounting the sequential connections and household coordination of various food tasks. This study employed the time-geographic construct of the project, which is defined as a series of goal-oriented activities conducted by one or more indivi…
Food Environments
The food environment is a term used to describe the geographies of food in the built environment. A variety of methods have been used to describe food environments and analyze their associations with socioeconomic characteristics, food purchasing and consumption behaviors, and health outcomes. While spatial patterns in food environments are consistently identified, their relationships with the aforementioned variables remain unclear. Future direc…
Riders Who Avoided Public Transit During Covid-19: Personal Burdens and Implications for Social Equity
Millions of North Americans stopped riding public transit in response to COVID-19. We treat this crisis as a natural experiment to illustrate the importance of public transit in riders’ abilities to access essential destinations. We measured the impacts of riders forgoing transit through a survey of transportation barriers completed by more than 4,000 transit riders in Toronto and Vancouver (Canada). We used Heckman selection models to predict si…
Disentangling Time Use, Food Environment, and Food Behaviors Using Multi‐Channel Sequence Analysis
Geographic access to food retailers has long been considered an important determinant of food‐related behaviors. Despite methodological improvements in assessing food environments, their associations with food behaviors have remained inconsistent. We argue that one possible reason for these inconsistencies is the lack of information about how an individual’s time use dynamics play out in space. To this point, few studies on the combined effects o…
Who's cooking tonight? A time-use study of coupled adults in Toronto, Canada
Understanding how coupled adults arrange food-related labor in relation to their daily time allocation is of great importance because different arrangements may have implications for diet-related health and gender equity. Studies from the time-use perspective argue that daily activities such as work, caregiving, and non-food-related housework can potentially compete for time with foodwork. However, studies in this regard are mostly centered on in…
Comparing Household and Individual Measures of Access through a Food Environment Lens: What Household Food Opportunities Are Missed When Measuring Access to Food Retail at the Individual Level
Geographers and public health researchers have long been interested in social, spatial, and economic factors that drive access and exposure to food retail. A growing body of evidence draws on mobility data to capture locations accessed by individuals beyond the home address. Given that food-related activities are shared by household members and often gendered, taking an individual-level approach might limit researchers’ ability to accurately desc…
Integrating coordination of food purchasing into activity space-based food environment research: Toward a household perspective
Time-Geographic Project of Household Food Provision: Conceptualization and a Pilot Case Study
Geographers and health researchers routinely analyze data on food-related behaviors to understand potential relationships between the food environment and diet. Analytical uncertainties arise, however, from discounting the sequential connections and household coordination of various food tasks. This study employed the time-geographic construct of the project, which is defined as a series of goal-oriented activities conducted by one or more indivi…
Changes in the number of new takeaway food outlets associated with adoption of management zones around schools: A natural experimental evaluation in England
By the end of 2017, 35 local authorities (LAs) across England had adopted takeaway management zones (or "exclusion zones") around schools as a means to curb proliferation of new takeaways. In this nationwide, natural experimental study, we evaluated the impact of management zones on takeaway retail, including unintended displacement of takeaways to areas immediately beyond management zones, and impacts on chain fast-food outlets. We used uncontro…
Changes in the number and outcome of takeaway food outlet planning applications in response to adoption of management zones around schools in England: A time series analysis
Physical exposure to takeaway food outlets ("takeaways") is associated with poor diet and excess weight, which are leading causes of excess morbidity and mortality. At the end of 2017, 35 local authorities (LAs) in England had adopted takeaway management zones (or "exclusion zones"), which is an urban planning intervention designed to reduce physical exposure to takeaways around schools. In this nationwide, natural experimental study, we used int…
Mobility, ICT, and health: A built environment investigation of older Chinese migrants’ social isolation and loneliness
Results indicate that ICT use might have limited ability to reduce loneliness and support mental health when mobility is limited. Addressing older migrants' barriers to community mobility is critical to reducing feelings of loneliness
Alone together? A time use approach for examining socializing when travel is limited
Migrant populations access different social networks due to their cultural contexts and the locations of their social relationships. The COVID‐19 pandemic generated concern about social isolation among older adults. During Ontario's extended lockdown, we investigated the social behaviours of a generally sedentary older Chinese migrant community (n = 77) in the Greater Toronto Area. Using single‐day activity diaries, we grouped respondents using a…
An economic analysis of the impacts of local authority takeaway management zones around schools in England
Higher numbers of hot food takeaways in local neighbourhood food environments can be associated with increased exposure to, and consumption of, food that is high in fat and salt, and low in health promoting nutrients. Takeaway management zones enable local authorities in England to limit the number of new hot food takeaways opening. The impacts of takeaway management zones on local economies are currently unknown and yet commercial and other acto…
An Improved Measure for Exploring Sociospatial Inequalities in Access to Online Fresh Food
Access to fresh food is essential for promoting healthy diets, yet existing measures of online food access remain limited and often overlook socioeconomic disparities at fine spatial scales. This study develops an improved measure of online food accessibility that accounts for consumer purchasing behavior at varying distances. It adapts the enhanced two-step floating catchment area (E2SFCA) method using an empirically derived, nonmonotonic distan…
Medicine (7 works) · Business (6 works) · Obesity, Physical Activity, Diet (6 works) · Urban Transport and Accessibility (6 works) · Computer Science (5 works) · Economics (5 works) · Geography (5 works) · Sociology (5 works) · Health disparities and outcomes (4 works) · Consumer Retail Behavior Studies (3 works)