Changes In Built Environment Research Articles

Exploring the scale effect of urban thermal environment through XGBoost model

The urban thermal environment constitutes a significant aspect of the urban physical environment and warrants consideration in urban planning. Nonetheless, the nonlinear relationship between various factors and the urban thermal environment across different scales, as well as effective strategies for mitigating it, remain unclear. This study employs XGBoost and SHAP models alongside Partial Dependency Plot to analyze the impact of changes in socio-economic activities, built environment, and blue-green spatial patterns on land surface temperature grades within the Shanghai municipality and central Shanghai. Findings underscore that factors influencing the urban thermal environment vary between the municipality and central urban scales. Specifically, blue-green spatial patterns change hold greater relative importance at the scale of the municipality in Shanghai, while socio-economic activities and built environment changes are more significant at central Shanghai scale. Moreover, the spatial contribution of factors varies across scales, and most exhibit a nonlinear relationship with the urban thermal environment. This in-depth exploration of the scale effect on the urban thermal environment offers insights for formulating urban planning strategies to alleviate associated challenges.

Supporting Local Public Health and Planning Professionals to Implement Built Environment Changes: A Technical Assistance Program to Promote Physical Activity in Texas.

Built environment approaches that improve active transportation infrastructure and environmental design can increase physical activity. Funded by the Centers for Disease Control and Prevention, the Texas Department of State Health Services rejuvenated the Texas Plan4Health program from 2018 to 2023 to expand such approaches in Texas by providing technical assistance to teams of local public health professionals and planners to identify and implement projects connecting people to everyday destinations via active transport in their communities. However, the COVID-19 pandemic prompted Texas Plan4Health to modify the delivery of technical assistance to accommodate restrictions on travel and in-person gatherings. We used qualitative methods to conduct a postintervention process evaluation to describe the modified technical assistance process, understand the experiences of the 4 participating communities, and identify short-term outcomes and lessons learned. Texas Plan4Health helped communities overcome common barriers to built environment change, facilitated collaboration across community public health and planning professionals, and educated professionals about active transportation infrastructure and the relationship between their disciplines, thereby increasing community capacity to implement built environment improvements. This outcome, however, was mediated by the pre-existing resources and previous experiences with active transportation planning among the participating communities. Public health practitioners seeking to improve active transportation infrastructure and environmental design for physical activity should consider community-engaged approaches that advance partnership-building and collaborative experiential education among public health, planning, and other local government representatives, directing particular attention and additional training toward communities with fewer resources.

A Neighbourhood Unit for Equitable Resilience

The early twentieth-century concept of the neighbourhood unit aimed to use spatial planning to redress problems associated with that era of urbanization in the US and Europe, including car traffic, pollution, and social alienation. We ask how this influential and controversial concept might be adapted to address today's most vexing urban challenges: climate change hazards and widening inequality. Drawing on a diverse array of global case studies, we argue that the neighbourhood can be a unit for 'equitable resilience', but only if we reconceptualize neighbourhoods in significant ways. First, 'neighbourhood' must be defined more capaciously to include not just the middle-class enclaves envisioned by Clarence Perry and other early neighbourhood planning advocates, but also places that are home to disadvantaged residents, from mixed-income communities to public housing, informal settlements, and manufactured home parks. Second, for neighbourhood interventions to bring lasting equitable resilience, they must be linked to analysis and action on wider spatial and political scales. Finally, to ensure resilience will be equitable, neighbourhood scale interventions must link built environment changes to institutional changes that improve conditions in the domains of livelihoods, environmental safety, governance, and security from displacement. In short, to be units for equitable resilience, neighbourhoods must help residents build the power to act in the face of climate change and other threats.

Development, scoring, and reliability for the Microscale Audit of Pedestrian Streetscapes for Safe Routes to School (MAPS-SRTS) instrument

BackgroundActive commuting to school can be a meaningful contributor to overall physical activity in children. To inform better micro-level urban design near schools that can support active commuting to school, there is a need for measures that capture these elements. This paper describes the adaptation of an observational instrument for use in assessing micro-scale environments around urban elementary schools in the United States.MethodsThe Micro-scale Audit of Pedestrian Streetscapes for Safe Routes to School (MAPS-SRTS) was developed from existing audit instruments not designed for school travel environments and modifications for the MAPS-SRTS instrument include the structure of the audit tool sections, the content, the observation route, and addition of new subscales. Subscales were analyzed for inter-rater reliability in a sample of 36 schools in Austin, TX. To assess reliability for each subscale, one-way random effects single-measure intraclass correlation coefficients (ICC) were used.ResultsCompared to the 30 original subscales, the adapted MAPS-SRTS included 26 (86.6%) subscales with revised scoring algorithms. Most MAPS-SRTS subscales had acceptable inter-rater reliability, with an ICC of 0.97 for the revised audit tool.ConclusionsThe MAPS-SRTS audit tool is a reliable instrument for measuring the school travel environment for research and evaluation purposes, such as assessing human-scale determinants of active commuting to school behavior and documenting built environment changes from infrastructure interventions.

Enhancing Health through Built Environment Improvement: A Southern Nevada Health Impact Assessment Case Study

Background: Health Impact Assessment (HIA) is a public health tool to evaluate how choices made outside the health sector can affect health. HIAs are utilized in transportation, housing, planning, and other fields. Since the built environment can impact community health outcomes, including physical activity rates, injuries, and overweight and obesity, an interdisciplinary team composed of public health, planning, transportation, and land use professionals conducted an HIA in Las Vegas, Nevada.
 Methods: The HIA consisted of (1) screening, (2) scoping, (3) assessment, (4) recommendations, (5) reporting, and (6) monitoring and evaluation. It examined proposed physical improvements to a 0.66 mile stretch of a major arterial roadway in the City of Las Vegas where nearby residents experience many health inequities. Collection and analysis of land use and survey data, analysis of secondary data, and literature reviews were completed to predict potential health effects produced by built environment changes. Stakeholder feedback informed each HIA step.
 Results: The HIA generated recommendations to improve physical activity, reduce pedestrian and bicyclist injury rates, and decrease obesity and overweight prevalence, by presenting “good,” “better,” and “best” physical infrastructure improvements. The process and resulting recommendations enhanced collaboration among health and nonhealth sectors.
 Conclusions: Data and analysis revealed that the proposed changes could improve walkability and bikeability and reduce pedestrian and bicyclist injury. By encouraging active transportation through bicycling and walking, the plan could, over time, contribute to reduced overweight and obesity. The HIA facilitated inter-sector cross collaboration and the integration of health into future decision-making.

Causality between the built environment and subjective wellbeing: Applying difference-in-differences and synthetic control methods to longitudinal data from England

ObjectivePotential causal relationship between the built environment and subjective wellbeing has been segmentally explored and partially quantified. We leverage household relocation as a natural experiment to investigate the causality between built environment change and subjective wellbeing.
 MethodTwo causal inference methods (difference-in-differences and synthetic control) are applied and compared. The use of the ‘Understanding Society’ dataset (The UK Household Longitudinal Study, 2009-2019), combined with holistic locational attributes (Area Classification at the Lower Super Output Area level as per the UK Census) for exploring such causality is novel in literature. Specifically, to estimate the effects of relocation, we compare movers (treatment n=773) to non-movers (control n=4,619). To estimate the effects of built environment change, we compare movers with a change in built environment (n=506) with those moving to the same built environment type (n=267).
 ResultsOur results show immediate and enduring positive causal effects of relocation, equivalent to an average improvement of 8% in subjective wellbeing level compared to non-movers. Among moves, moving to a different built environment improves subjective wellbeing by an equivalent of 13% compared with moving to the same built environment type. Without a change in built environment type, the positive causal effects become negligible. We further find the distress of relocation is transitory, and preliminary evidence that relocation decisions are formed over years and influenced by acute stressors. We hypothesise that relocation and change in built environment alleviate existing distresses but play limited roles in delivering multi-dimensional subjective wellbeing benefits.
 ConclusionThis paper is one of the first studies that apply and compare two causal models (DiD and SCM) for identifying potential causal effects of built environment on subject wellbeing. It is demonstrated that recent developments in causal inference methods have untapped potential to be applied in urban planning research. The ability to robustly identify complex causal/associative effects are particularly pertinent for policymaking purposes.

An Agent-Based Simulation Model for Testing Novel Obesity Interventions in School Environment Design

Studying the impact of built-environment changes on human behavior and health is empirically challenging. To overcome this challenge, there has been increasing recognition of the usefulness of systems’ approaches for scenario testing to understand and prioritize such public health interventions. Limited research has shown a potential effect on the positive energy expenditure as a result of the use of dynamic furniture that promotes micromovement among school children. In this article, we aim to determine, via experiments in simulated populations of elementary school students, whether the use of dynamic furniture in the school environment has an impact on the childhood obesity over time. An agent-based model is developed to simulate three physical activity (PA) profiles over a period of six years with and without the dynamic furniture. Based on the prevalence trends from the experiments, there is no apparent impact of dynamic furniture use among boys, regardless of activity profile category. However, there are some pieces of evidence of differing trends among girls with a low PA profile. Although the intervention produces a marginal change in obesity prevalence in one population, the dynamic furniture is not a sole solution to the obesity epidemic. However, the use of dynamic furniture in schools may be a worthwhile component of prevention interventions.

Impact of built environment change on all-cause and cause-specific mortality: a novel longitudinal method and study

BackgroundPublic health research increasingly acknowledges the influence of built environments (BE) on health; however, it is uncertain how BE change is associated with better population health and whether BE change...

Virtual reality assessment of walking in a modifiable urban environment: a feasibility and acceptability study

Physical activity is known to be one of the most health-beneficial behaviors, and salutogenic design modifications to the built environment can facilitate increased physical activity. Unfortunately, it is not often clear in advance which environmental and urban design implementations will generate increases in activities such as walking, and which will have little impact or even reduce walking. The present study tested the feasibility and acceptability of a virtual reality (VR) model for pre-testing urban designs for their impact on walking. Using a wearable VR head-mounted display/computer, young adults (n = 40) walked freely through a large indoor gymnasium, simultaneously walking through a virtual model of an urban streetscape that was designed to be modifiable and allow for testing impacts on walking of various changes to the urban environment. The majority of participants found the experience to be acceptable: pleasant and nonaversive, and they walked freely through the VR model for approximately 20 min, on average. Using modifiable VR models to pre-test built-environment changes for their impacts on walking behavior appears to be a feasible and acceptable approach and worthy of continued research investigation.

Effectiveness of travel behavior and infrastructure change to mitigate heat exposure

Urban heat exposure is an increasing health risk among urban dwellers. Many cities are considering accommodating active mobility, especially walking and biking, to reduce greenhouse gas emissions. However, promoting active mobility without proper planning and transportation infrastructure to combat extreme heat exposure may cause more heat-related morbidity and mortality, particularly in future with projected climate change. This study estimated the effectiveness of active trip heat exposure mitigation under built environment and travel behavior change. Simulations of the Phoenix metro region's 624,987 active trips were conducted using the activity-based travel model (ABM), mean radiant temperature (TMRT, net human radiation exposure), transportation network, and local climate zones. Two scenarios were designed to reduce traveler exposure: one that focuses on built environment change (making neighborhoods cooler) and the other on travel behavior (switching from shorter travel time but higher exposure routes to longer travel time but cooler routes) change. Travelers experienced TMRT heat exposure ranging from 29°C to 76°C (84°F to 168°F) without environmental or behavioral change. Active trip TMRT exposures were reduced by an average of 1.2–3.7°C when the built environment was changed from a hotter to cooler design. Behavioral changes cooled up to 10 times more trips than changes in built environment changes. The marginal benefit of cooling decreased as the number of cooled corridors transformed increased. When the most traveled 10 km of corridors were cooled, the marginal benefit affected over 1,000 trips/km. However, cooling all corridors results in marginal benefits as low as 1 trip/km. The results reveal that heavily traveled corridors should be prioritized with limited resources, and the best cooling results come from environment and travel behavior change together. The results show how to surgically invest in travel behavior and built environment change to most effectively protect active travelers.

COVID-19 Related Protocol Considerations and Modifications within a Rural, Community-Engaged Health Promotion Randomized Trial.

Rural communities are at higher risk for physical inactivity, poor dietary behaviors, and related chronic diseases and obesity. These disparities are largely driven by built environment, socioeconomic, and social factors. A community-based cluster randomized controlled trial of an intervention, the Change Club, aims to address some of these disparities via civic engagement for built environment change. Baseline data collection began in February 2020, only to be paused by the COVID-19 pandemic. In this context, the investigators evaluated multiple approaches for collecting data when the study resumed, focusing on Life's Simple 7, and additional anthropometric, physiologic, and behavioral outcomes in rural and micropolitan (<50,000 population) communities in Texas and New York. Life's Simple 7 includes fasting blood glucose, total cholesterol, blood pressure, weight, physical activity, diet, and smoking. Rigor and feasibility were considered across a variety of in-person versus at-home measurement options. After a comprehensive input from participants, partners, staff, researchers, and the funding liaison, the study team chose self-measurement and use of validated questionnaires/surveys to measure the Life's Simple 7 components. This case provides an example of how a study team might adjust data collection protocol during unexpected and acute events while giving consideration to rigor, feasibility, stakeholder views, and participants' health and safety.

The Association between Changes in Built Environment and Changes in Walking among Older Women in Portland, Oregon.

Some cross-sectional evidence suggests that the objectively measured built environment can encourage walking among older adults. We examined the associations between objectively measured built environment with change in self-reported walking among older women by using data from the Study of Osteoporotic Fractures (SOF). We evaluated the longitudinal associations between built environment characteristics and walking among 1253 older women (median age = 71 years) in Portland, Oregon using generalized estimating equation models. Built environment characteristics included baseline values and longitudinal changes in distance to the closest bus stop, light rail station, commercial area, and park. A difference of 1 km in the baseline distance to the closest bus stop was associated with a 12% decrease in the total number of blocks walked per week during follow-up (eβ = 0.88, 95% CI: 0.78, 0.99). Our study provided limited support for an association between neighborhood transportation and changes in walking among older women. Future studies should consider examining both objective measures and perceptions of the built environment.

Applying the Consolidated Framework for Implementation Research (CFIR) to examine barriers and facilitators to built environment change in five Canadian municipalities: Lessons from road safety and injury prevention professionals

IntroductionRoad traffic injury and death continue to be a concern in Canada. The built environment (BE) is a contributing factor affecting the health of road users, yet there are significant challenges to making injury-reducing BE changes. This research increases our knowledge of these challenges by investigating the opinions of injury prevention and road safety professionals working in Canada about the barriers and facilitators to BE change. MethodsSemi-structured interviews and virtual focus groups (VFG) were conducted with 80 key informants (KIs) working in transport and injury prevention sectors in five Canadian cities: Vancouver, Calgary, Peel Region, Toronto, and Montréal. The Consolidated Framework for Implementation Research (CFIR) informed the interview guides. Thematic analysis was used to systematically analyze the data, a process that involved developing codes aligning with the research question, what are the barriers and facilitators to BE change? Themes were cross-referenced with the CFIR domains and constructs to illustrate how barriers and facilitators influence implementation of BE changes. ResultsThe prioritization of motor vehicles, lack of funding and resources, lack of political will, and sectoral silos were described as the most significant barriers to BE change. Cross-sectoral collaboration, data sharing, and champions and advocates were the most significant facilitators. ConclusionsCross-referencing themes with the CFIR situated our findings within the scope of implementation science, which demonstrated how barriers and facilitators influence BE change project implementation. The prioritization of motor vehicles results in disproportionate injury and health risks for VRUs. Collaboration across sectors, with the support of champions and advocates, can facilitate sharing of resources, data, and expertise, which results in more opportunities to enact BE change. Knowledge of these barriers and facilitators, contextualized by the CFIR, makes a case for policy/decision-makers in Canada to approve BE projects that reduce risk of road traffic injury and death.

Evaluation of a civic engagement approach to catalyze built environment change and promote healthy eating and physical activity among rural residents: a cluster (community) randomized controlled trial

BackgroundPrior studies demonstrate associations between risk factors for obesity and related chronic diseases (e.g., cardiovascular disease) and features of the built environment. This is particularly true for rural populations, who have higher rates of obesity, cancer, and other chronic diseases than urban residents. There is also evidence linking health behaviors and outcomes to social factors such as social support, opposition, and norms. Thus, overlapping social networks that have a high degree of social capital and community cohesion, such as those found in rural communities, may be effective targets for introducing and maintaining healthy behaviors.MethodsThis study will evaluate the effectiveness of the Change Club (CC) intervention, a civic engagement intervention for built environment change to improve health behaviors and outcomes for residents of rural communities. The CC intervention provides small groups of community residents (approximately 10–14 people) with nutrition and physical activity lessons and stepwise built environment change planning workshops delivered by trained extension educators via in-person, virtual, or hybrid methods. We will conduct process, multilevel outcome, and cost evaluations of implementation of the CC intervention in a cluster randomized controlled trial in 10 communities across two states using a two-arm parallel design. Change in the primary outcome, American Heart Association’s Life’s Simple 7 composite cardiovascular health score, will be evaluated among CC members, their friends and family members, and other community residents and compared to comparable samples in control communities. We will also evaluate changes at the social/collective level (e.g., social cohesion, social trust) and examine costs as well as barriers and facilitators to implementation.DiscussionOur central hypothesis is the CC intervention will improve health behaviors and outcomes among engaged citizens and their family and friends within 24 months. Furthermore, we hypothesize that positive changes will catalyze critical steps in the pathway to improving longer-term health among community residents through improved healthy eating and physical activity opportunities. This study also represents a unique opportunity to evaluate process and cost-related data, which will provide key insights into the viability of this approach for widespread dissemination.Trial registrationClinicalTrials.gov: NCT05002660, Registered 12 August 2021.

Coupling a Physical Replica with a Digital Twin: A Comparison of Participatory Decision-Making Methods in an Urban Park Environment

Public participation is crucial in promoting built environment quality. By using Nancuiping park in China as a case study, this research brings attention to the digital twin park compared to the physical replica in a participatory workshop. Using UAV oblique photography, we created a digital twin model of this park and divided it into six layers to better manage and analyze the environment. Bracing the ‘bottom-up’ design philosophy, in the workshop, we analyzed existing issues in the park and simulated built environment changes, taking suggestions and comments from participants into account to support the decision-making of the park’s optimization. Our digital twin model and physical replica were assessed through a questionnaire in which 59 participants used 3 defined indicators: usability, interactivity, and scenario simulation and visualization quality. The results suggest that the physical replica is easier to use in the participatory design. However, the digital twin model can provide better interactivity and efficient scene simulation and visualization quality. The statistical analysis of the relationship between participants’ feedback on the two models and their sociodemographics (age, gender, and education background) shows that age is a barrier to promoting digital twins for older participants. Meanwhile, the digital twin’s highly interactive features and high-resolution visualization capability were attractive to the younger and well-educated participants. Our study indicates future directions to improve the urban digital twin by incorporating human feedback into the urban model, thus establishing a two-way interaction between the digital system, the physical environment, and human perceptions.

Changes in neighborhood environments and the increasing socioeconomic gap in child obesity risks: Evidence from Singapore.

Most empirical research studying the link between neighborhood environments and child obesity risks are conducted in contexts such as the U.S., with pronounced patterns of residential segregation, making it difficult to extrapolate how far built environment characteristics contribute to socioeconomic disparities in obesity risks in less segregated contexts. Using a large national dataset of almost 625,000 students' height and weight data collected at ages 7, 11 and 14, between 2004 and 2015, this paper explores whether differences in eight neighborhood characteristics measuring access to different type of food outlets, parks and other active spaces, and public transport infrastructure might be responsible for socioeconomic differences in child obesity risks in Singapore, a city-state with relatively low levels of residential segregation. Through descriptive analyses we find that socioeconomic disparities in child BMIz in Singapore widened from 2004 onwards. However, while longitudinal regression models with individual and time fixed effects suggest that family socioeconomic status modified the relationship between environmental exposures and BMIz, there does not seem to be a clear, unequivocal relationship between built environment changes and the observed widening of the socioeconomic obesity gap.

Results of a Rural Traffic Calming Event to Promote Physical Activity

This article describes how community need was addressed through a traffic calming pop-up event in rural Arkansas. The event was conducted on routes connecting a neighborhood, two schools, and a municipal park. A brief survey assessed safety concerns of parents and/or guardians related to children walking or biking to school. Prior to the event, parents/guardians reported it was not safe for their children to walk or bike to school; however, the majority agreed the event made the area safer. Small-scale traffic calming events can provide evidence to stakeholders that built environment changes are an important childhood obesity prevention strategy in rural Extension work.

Observation of and intention to use new places and changed spaces for physical activity during the COVID-19 pandemic — United States, June 2021

The COVID-19 pandemic prompted built environment changes throughout the United States. We assessed the prevalence of new places and changed spaces for physical activity as observed by US adults and their intentions to use them. We used data from SummerStyles, a web-based survey of US adults conducted in June 2021 (n = 4073). Respondents were asked if they had discovered new places to be physically active during the past year, and if changes had been made to streets or outdoor areas to allow additional space for recreating. Those responding “yes” were asked if they intended to use the respective space. We estimated the weighted prevalence of adults who observed new places and changed spaces, and their intended use, by sociodemographic and geographic characteristics, physical activity level, and walking status. We compared subgroups with prevalence ratios (PR). Overall, 25.0% of US adults reported discovering new places for physical activity, and 25.3% reported changes to streets and outdoor spaces. Intention to use new places and changed spaces exceeded 50% among all sociodemographic and geographic subgroups. Among those reporting changes, adults who were physically inactive compared to those who were sufficiently active had similar intentions to use new places (PR = 0.83; 95% CI = 0.63, 1.10) and changed spaces (PR = 0.90; 95% CI = 0.69, 1.17). Approximately 1 in 4 adults reported discovering new places or changed spaces to support physical activity during the COVID-19 pandemic, and most intended to use these features. Expanding access to such supportive environments may help promote physical activity participation.

The economics of climate change with endogenous preferences

Avoiding unmanageable climate change implies that global greenhouse gas emissions must be reduced rapidly. Carbon prices and technological development are essential to deliver such reductions. Changes in preferences, however, are rarely considered, even though other major socioeconomic transitions – such as those from reducing smoking and drink-driving – have succeeded partly because preferences have changed. This article examines the impact of climate policy-induced changes in consumers’ preferences. We show that low-carbon policies could be better designed if it is recognised that preferences can be endogenous to such policies. For instance, carbon taxes must be adjusted, if they crowd-in or -out social preferences, to achieve a given target. Further, when the urban built environment changes mobility preferences, the value of low-carbon infrastructure investments can be underestimated if such effects are ignored. Third, policy-induced changes in preferences for active travel and plant-based diets could increase the net benefits of the transition to zero emissions.

Built environment interventions and physical activity levels: A systematic review.

Abstrac:Introduction: Non-communicable diseases are the leading cause of death worldwide and physical activity is a key preventive strategy to reduce them. There is a relationship between the built environment and the practice of physical activity, but little evidence as to whether those built environment interventions not initially designed for promoting physical activity actually have an impact on promoting the behavior.Objective: To identify whether such built environment interventions were able to change physical activity in adults.Materials and methods: We conducted a systematic review of interventions targeting modifications to the built environment changes in urban areas.Results: Out of 5,605 articles reviewed, only seven met our inclusion criteria. The seven studies found higher levels of physical activity after the interventions.Conclusions: We recommend greater specificity regarding the study design, the timeline of interventions implementation and post-intervention measurements, as well as the use of more objective measures. Finally, we point out the need to make more explicit the mechanisms of change related to the interventions assessed.