11 results on '"Higgins, Christopher"'
Search Results
2. Demand and level of service inflation in Floating Catchment Area (FCA) methods.
- Author
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Paez, Antonio, Higgins, Christopher D., and Vivona, Salvatore F.
- Subjects
- *
WATERSHEDS , *IMPEDANCE matrices , *MEDICAL care , *SUPPLY & demand , *METROPOLITAN areas - Abstract
Floating Catchment Area (FCA) methods are a popular tool to investigate accessibility to public facilities, in particular health care services. FCA approaches are attractive because, unlike other accessibility measures, they take into account the potential for congestion of facilities. This is done by 1) considering the population within the catchment area of a facility to calculate a variable that measures level of service, and then 2) aggregating the level of service by population centers subject to catchment area constraints. In this paper we discuss an effect of FCA approaches, an artifact that we term demand and level of service inflation. These artifacts are present in previous implementations of FCA methods. We argue that inflation makes interpretation of estimates of accessibility difficult, which has possible deleterious consequences for decision making. Next, we propose a simple and intuitive approach to proportionally allocate demandand and level of service in FCA calculations. The approach is based on a standardization of the impedance matrix, similar to approaches popular in the spatial statistics and econometrics literature. The result is a more intiuitive measure of accessibility that 1) provides a local version of the provider-to-population ratio; and 2) preserves the level of demand and the level of supply in a system. We illustrate the relevant issues with some examples, and then empirically by means of a case study of accessibility to family physicians in the Hamilton Census Metropolitan Area (CMA), in Ontario, Canada. Results indicate that demand and supply inflation/deflation affect the interpretation of accessibility analysis using existing FCA methods, and that the proposed adjustment can lead to more intuitive results. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
3. All minutes are not equal: travel time and the effects of congestion on commute satisfaction in Canadian cities.
- Author
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Higgins, Christopher D., Kanaroglou, Pavlos S., and Sweet, Matthias N.
- Subjects
TRAVEL time (Traffic engineering) ,TRANSPORTATION ,PSYCHOLOGICAL stress ,TRAFFIC congestion ,URBAN planning ,ECONOMICS - Abstract
Despite decades of research, it is unclear under which circumstances travel is most onerous. While studies have found that some individuals derive positive utility from aspects of commuting, others have shown that traffic congestion can entail important time, monetary, and mental stress costs. Moreover, responses to traffic congestion-related stressors differs by individual characteristics. In response, this research captures how exposure to traffic congestion events, the duration of this exposure, and individual trait susceptibility to congestion affect the utility of commuting. Working through the lens of individual satisfaction with the duration of their commute, we show that not every minute of travel is valued the same by car commuters in Canadian cities. Results suggest a complex relationship between travel time, congestion, and individual predisposition to congestion-related stress. While improvements in travel time matter for increasing commute satisfaction, it is reductions in travel in congested conditions that matter most, particularly among those susceptible to congestion-related stressors. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
4. Rapid transit, transit-oriented development, and the contextual sensitivity of land value uplift in Toronto.
- Author
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Higgins, Christopher and Kanaroglou, Pavlos
- Subjects
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PUBLIC transit , *TRANSPORTATION , *VALUATION of real property , *TRANSIT-oriented development , *REAL estate development - Abstract
Rapid transit projects that increase accessibility should result in a localised land value uplift (LVU) benefit for locations near stations. A rich history of research has tested this hypothesis, generally operationalising transit accessibility by proxy through distance from a transit station. However, a growing body of research has also demonstrated LVU effects from transit-oriented development (TOD) as individuals sort themselves into locations that best match their preferences and willingness to pay. Considering the interdependence of transportation and land use in the urban system, we argue that these benefits create a spatial bundle of TOD goods around transit stations and hypothesise that households are willing to pay a premium for locations in more transit-oriented station catchment areas. Utilising latent class analysis, we quantify station area TOD submarkets. Next, interactions between these submarkets and station proximity in spatial hedonic regressions reveal that TOD is capitalised into land values in Toronto, though the maximum amount and spatial impact area of this capitalisation differs by TOD context. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
5. The health impacts of weekday traffic: A health risk assessment of PM2.5 emissions during congested periods.
- Author
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Requia, Weeberb J., Higgins, Christopher D., Adams, Matthew D., Mohamed, Moataz, and Koutrakis, Petros
- Subjects
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AIR pollution , *HEALTH , *EMISSIONS (Air pollution) , *TRAFFIC congestion , *MORTALITY , *HEALTH risk assessment - Abstract
Little work has accounted for congestion, using data that reflects driving patterns, traffic volume, and speed, to examine the association between traffic emissions and human health. In this study, we performed a health risk assessment of PM 2.5 emissions during congestion periods in the Greater Toronto and Hamilton Area (GTHA), Canada. Specifically, we used a micro-level approach that combines the Stochastic User Equilibrium Traffic Assignment Algorithm with a MOVES emission model to estimate emissions considering congestion conditions. Subsequently, we applied a concentration-response function to estimate PM 2.5 -related mortality, and the associated health costs. Our results suggest that traffic congestion has a substantial impact on human health and the economy in the GTHA, especially at the most congested period (7:00 am). Considering daily mortality, our results showed an impact of 206 (boundary test 95%: 116; 297) and 119 (boundary test 95%: 67; 171) deaths per year (all-cause and cardiovascular mortality, respectively). The economic impact from daily mortality is approximately $1.3 billion (boundary test 95%: 0.8; 1.9), and $778 million (boundary test 95%: 478; 981), for all-cause and cardiovascular mortality, respectively. Our study can guide reliable projections of transportation and air pollution levels, improving the capability of the medical community to prepare for future trends. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
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6. The relationship between work arrangements and work-family conflict.
- Author
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Higgins, Christopher, Duxbury, Linda, and Julien, Mark
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ANALYSIS of covariance ,CONCEPTUAL structures ,WORKING hours ,MULTIVARIATE analysis ,PROBABILITY theory ,ROLE conflict ,SURVEYS ,TELECOMMUTING ,WORK ,WORK environment ,FAMILY relations ,HOME environment - Abstract
BACKGROUND: A review of the literature determined that our understanding of the efficacy of flexible work arrangements (FWA) in reducing work-family conflict remains inconclusive. OBJECTIVE: To shed light on this issue by examining the relationship between work-to-family conflict, in which work interferes with family (WFC), family-to-work conflict, in which family interferes with work (FWC), and four work arrangements: the traditional 9-5 schedule, compressed work weeks (CWWs) flextime, and telework. METHODS: Hypotheses were tested on a sample of 16,145 employees with dependent care responsibilities. MANCOVA analysis was used with work arrangement as the independent variable and work interferes with family (WFC) and family interferes with work (FWC) as dependent variables. Work demands, non-work demands, income, job type and gender were entered into the analysis as covariates. RESULTS: The more flexible work arrangements such as flextime and telework were associated with higher levels of WFC than were fixed 9-to 5 and CWW schedules. Employees who teleworked reported higher FWC than their counterparts working a traditional 9-to-5 schedule particularly when work demands were high. CONCLUSIONS: The removal of both temporal and physical boundaries separating work and family domains results in higher levels of work-family interference in both directions. The results from this study suggest that policy makers and practitioners who are interested in improving employee well-being can reduce work-family conflict, and by extension improve employee mental health, by focusing on the effective use of traditional and CWW schedules rather than by implementing flextime and telework arrangements. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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7. A STUDY OF THE IMPACT OF FACTOR IMPORTANCE WEIGHTINGS ON JOB SATISFACTION MEASURES.
- Author
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Staples, D. Sandy and Higgins, Christopher A.
- Subjects
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JOB satisfaction , *EMPLOYEE attitude surveys , *INDUSTRIAL psychology , *ESTIMATION theory , *QUALITY of work life , *SOCIAL surveys , *RESPONSE rates - Abstract
This study empirically tests Locke's theory that the importance of a job satisfaction factor to an individual is already reflected in the individual's responses to the specific questions, Responses from a job satisfaction survey carried out by a large Canadian company were analyzed using a second generation causal modeling technique, Partial Least Squares. The results supported Locke's theory in that weighting the responses with the individual's importance factors did not improve the variance explained in the job satisfaction model. Further analysis indicated that there were differences between groups with high job satisfaction and groups with low satisfaction, differences in job satisfaction for different levels of service length, and that the differences in job satisfaction across gender were not large. [ABSTRACT FROM AUTHOR]
- Published
- 1998
- Full Text
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8. Adding team-based financial incentives to the Carrot Rewards physical activity app increases daily step count on a population scale: a 24-week matched case control study.
- Author
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Pearson, Emma, Prapavessis, Harry, Higgins, Christopher, Petrella, Robert, White, Lauren, and Mitchell, Marc
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ENDOWMENTS ,INTERPROFESSIONAL relations ,RESEARCH methodology ,MOTIVATION (Psychology) ,PUBLIC health ,REGRESSION analysis ,REWARD (Psychology) ,TELEMEDICINE ,TEAMS in the workplace ,ACHIEVEMENT ,RETROSPECTIVE studies ,CASE-control method ,PHYSICAL activity ,MOBILE apps ,DESCRIPTIVE statistics - Abstract
Background: Mobile health applications (mHealth apps) targeting physical inactivity have increased in popularity yet are usually limited by low engagement. This study examined the impact of adding team-based incentives (Step Together Challenges, STCs) to an existing mHealth app (Carrot Rewards) that rewarded individual physical activity achievements. Methods: A 24-week quasi-experimental study (retrospective matched pairs design) was conducted in three Canadian provinces (pre-intervention: weeks 1–12; intervention: weeks 13–24). Participants who used Carrot Rewards and STCs (experimental group) were matched with those who used Carrot Rewards only (controls) on age, gender, province and baseline mean daily step count (±500 steps/d). Carrot Rewards users earned individual-level incentives (worth $0.04 CAD) each day they reached a personalized daily step goal. With a single partner, STC users could earn team incentives ($0.40 CAD) for collaboratively reaching individual daily step goals 10 times in seven days (e.g., Partner A completes four goals and Partner B completes six goals in a week). Results: The main analysis included 61,170 users (mean age = 32 yrs.; % female = 64). Controlling for pre-intervention mean daily step count, a significant difference in intervention mean daily step count favoured the experimental group (p < 0.0001; η
p 2 = 0.024). The estimated marginal mean group difference was 537 steps per day, or 3759 steps per week (about 40 walking min/wk). Linear regression suggested a dose-response relationship between the number of STCs completed (app engagement) and intervention mean daily step count (adjusted R2 = 0.699) with each new STC corresponding to approximately 200 more steps per day. Conclusion: Despite an explosion of physical activity app interest, low engagement leading to small or no effects remains an industry hallmark. In this paper, we found that adding modest team-based incentives to the Carrot Rewards app increased mean daily step count, and importantly, app engagement moderated this effect. Others should consider novel small-teams based approaches to boost engagement and effects. [ABSTRACT FROM AUTHOR]- Published
- 2020
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9. How open are Canadian households to electric vehicles? A national latent class choice analysis with willingness-to-pay and metropolitan characterization.
- Author
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Ferguson, Mark, Mohamed, Moataz, Higgins, Christopher D., Abotalebi, Elnaz, and Kanaroglou, Pavlos
- Subjects
- *
ELECTRIC vehicles , *HOUSEHOLDS , *LATENT class analysis (Statistics) , *WILLINGNESS to pay , *INTERNAL combustion engines - Abstract
This paper reports on results developed from a 2015 national survey of Canadian consumers that sought to assess attitudes and preferences towards consumer electric vehicles. A latent class discrete choice model was developed based on stated preferences choices. Four classes emerged with each being oriented to one of the primary vehicle technologies considered. The dominant characteristics of the Internal Combustion Engine (ICE)-oriented class are purchase price sensitivity, EV scepticism and an apparent resistance to change; for the Hybrid Electric Vehicle (HEV)-oriented class it is reluctance to plug-in and an unusual combination of high environmental concern and an acceptance to burn gasoline; for the suburban-oriented Plug-in Hybrid Electric Vehicle (PHEV)-oriented class it is measured optimism about plugging-in combined with an orientation to a replacement vehicle for the next purchase; and for the younger and most urban Battery Electric Vehicle (BEV)-oriented class it is the highest optimism about electric vehicles and a focus on positive aspects such as rapid acceleration and minimized maintenance costs. By orientation of household mindset, approximately 40% are ICE, 30% are PHEV, 20% are HEV and 10% are BEV. These results suggest considerable openness to electric vehicles. Willingness-to-pay for vehicle and charging attributes and incentives were calculated and are highly useful in interpreting the latent classes. The results feature interesting geographical variation which is captured at the level of Canadian metropolitan areas. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
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10. Public transport access to drug treatment before and during COVID-19: Implications for the opioid epidemic.
- Author
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Yücel SG, Higgins CD, Gupta K, and Palm M
- Subjects
- Humans, Analgesics, Opioid therapeutic use, Opioid Epidemic, Pandemics, Canada, COVID-19 Drug Treatment, COVID-19 epidemiology, Opioid-Related Disorders epidemiology, Opioid-Related Disorders drug therapy, Drug Overdose epidemiology, Drug Overdose drug therapy
- Abstract
Public transport disruptions caused by the COVID-19 pandemic had wide-ranging impacts on the ability of individuals to access health care. Individuals with opioid use disorder represent an especially vulnerable population due to the necessity of frequent, supervised doses of opioid agonists. Focused on Toronto, a major Canadian city suffering from the opioid epidemic, this analysis uses novel realistic routing methodologies to quantify how travel times to individuals\220 nearest clinics changed due to public transport disruptions from 2019 to 2020. Individuals seeking opioid agonist treatment face very constrained windows of access due to the need to manage work and other essential activities. We find that thousands of households in the most materially and socially deprived neighbourhoods crossed 30 and 20-minute travel time thresholds to their nearest clinic. As even small changes to travel times can lead to missed appointments and heighten the chances of overdose and death, understanding the distribution of those most impacted can help inform future policy measures to ensure adequate access to care., Competing Interests: Declarations of Interest None., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
- Full Text
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11. Elder care and the impact of caregiver strain on the health of employed caregivers.
- Author
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Duxbury L, Higgins C, and Smart R
- Subjects
- Adult, Aged, Canada, Female, Humans, Male, Middle Aged, Personal Satisfaction, Regression Analysis, Caregivers psychology, Employment, Geriatric Nursing, Health Status, Stress, Psychological
- Abstract
Objective: As the baby-boom generation moves towards middle age, and their parents toward old age, the number of employees who combine care for an elderly dependant and work will increase in number. These employees are "at risk" of experiencing caregiver strain. This paper advances our understanding of these trends by examining the relationship between caregiver strain and the health of employed caregivers., Participants: Our study involved the analysis of data from the 2001 Canadian National Work, Family and Lifestyle Study (N= 31,517)., Methods: MANOVA was used to determine the relationship between caregiver strain and three situational factors: (1) gender; (2) where the care recipient lives compared to the caregiver; and, (3) family type. Regression was used to determine the relationship between caregiver strain and mental health., Results: We found that caregiver strain depends on gender, family type and location of care. Emotional strain was a significant predictor of mental health., Conclusions: These findings support the need for organizations to expand their thinking around work-life balance to include employees who have eldercare responsibilities.
- Published
- 2011
- Full Text
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