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https://www.readbyqxmd.com/read/28441743/smartphone-location-independent-physical-activity-recognition-based-on-transportation-natural-vibration-analysis
#1
Taeho Hur, Jaehun Bang, Dohyeong Kim, Oresti Banos, Sungyoung Lee
Activity recognition through smartphones has been proposed for a variety of applications. The orientation of the smartphone has a significant effect on the recognition accuracy; thus, researchers generally propose using features invariant to orientation or displacement to achieve this goal. However, those features reduce the capability of the recognition system to differentiate among some specific commuting activities (e.g., bus and subway) that normally involve similar postures. In this work, we recognize those activities by analyzing the vibrations of the vehicle in which the user is traveling...
April 23, 2017: Sensors
https://www.readbyqxmd.com/read/28440082/metro-commuter-exposures-to-particulate-air-pollution-and-pm2-5-associated-elements-in-three-canadian-cities-the-urban-transportation-exposure-study
#2
Keith Van Ryswyk, Angelos T Anastasopolos, Greg Evans, Liu Sun, Kelly Sabaliauskas, Ryan Kulka, Lance Wallace, Scott Weichenthal
System-representative commuter air pollution exposure data were collected for the metro systems of Toronto, Montreal, and Vancouver, Canada. Pollutants measured included PM2.5 (PM = particulate matter), PM10, ultrafine particles, black carbon, and the elemental composition of PM2.5. Sampling over three weeks was conducted in summer and winter for each city and covered each system on a daily basis. Mixed-effect linear regression models were used to identify system features related to particulate exposures. Ambient levels of PM2...
April 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28424154/association-between-active-commuting-and-incident-cardiovascular-disease-cancer-and-mortality-prospective-cohort-study
#3
Carlos A Celis-Morales, Donald M Lyall, Paul Welsh, Jana Anderson, Lewis Steell, Yibing Guo, Reno Maldonado, Daniel F Mackay, Jill P Pell, Naveed Sattar, Jason M R Gill
Objective To investigate the association between active commuting and incident cardiovascular disease (CVD), cancer, and all cause mortality.Design Prospective population based study. Setting UK Biobank.Participants 263 450 participants (106 674 (52%) women; mean age 52.6), recruited from 22 sites across the UK. The exposure variable was the mode of transport used (walking, cycling, mixed mode v non-active (car or public transport)) to commute to and from work on a typical day.Main outcome measures Incident (fatal and non-fatal) CVD and cancer, and deaths from CVD, cancer, or any causes...
April 19, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28349881/pm2-5-exposure-in-highly-polluted-cities-a-case-study-from-new-delhi-india
#4
Pallavi Pant, Gazala Habib, Julian D Marshall, Richard E Peltier
Personal exposure (PE) to air pollutants is driven by a combination of pollutant concentrations in indoor and outdoor environments, and time-activity pattern of individuals. The objectives of this study were to estimate personal exposure to PM2.5 and black carbon (BC), and assess the representability of ambient air quality monitoring stations to serve as surrogates for PE in New Delhi. Personal exposure to air pollutants (PM2.5-PE and BCPE) was measured using portable, battery-operated instruments (PM2.5- pDR1500 and BC- microAethalometer AE51) in a small cohort of healthy adults (n=12 in summer, n=6 in winter) with no occupational exposure...
March 27, 2017: Environmental Research
https://www.readbyqxmd.com/read/28340414/intersection-crash-prediction-modeling-with-macro-level-data-from-various-geographic-units
#5
Jaeyoung Lee, Mohamed Abdel-Aty, Qing Cai
There have been great efforts to develop traffic crash prediction models for various types of facilities. The crash models have played a key role to identify crash hotspots and evaluate safety countermeasures. In recent, many macro-level crash prediction models have been developed to incorporate highway safety considerations in the long-term transportation planning process. Although the numerous macro-level studies have found that a variety of demographic and socioeconomic zonal characteristics have substantial effects on traffic safety, few studies have attempted to coalesce micro-level with macro-level data from existing geographic units for estimating crash models...
March 21, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28322880/analyzing-the-impact-of-public-transit-usage-on-obesity
#6
Zhaowei She, Douglas M King, Sheldon H Jacobson
The objective of this paper is to estimate the impact of county-level public transit usage on obesity prevalence in the United States and assess the potential for public transit usage as an intervention for obesity. This study adopts an instrumental regression approach to implicitly control for potential selection bias due to possible differences in commuting preferences among obese and non-obese populations. United States health data from the 2009 Behavioral Risk Factor Surveillance System and transportation data from the 2009 National Household Travel Survey are aggregated and matched at the county level...
March 16, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28299370/change-in-commute-mode-and-body-mass-index-prospective-longitudinal-evidence-from-uk-biobank
#7
Ellen Flint, Elizabeth Webb, Steven Cummins
BACKGROUND: Insufficient physical activity is a determinant of obesity and cardiovascular disease. Active travel to work has declined in high-income countries in recent decades. We aimed to determine which socioeconomic and demographic characteristics predicted switching to or from active commuting, whether switching from passive to active commuting (or the reverse) independently predicts change in objectively measured body-mass index (BMI), and to ascertain whether any association is attenuated by socioeconomic, demographic, or behavioural factors...
December 2016: Lancet. Public Health
https://www.readbyqxmd.com/read/28282865/utilizing-crowdsourced-data-for-studies-of-cycling-and-air-pollution-exposure-a-case-study-using-strava-data
#8
Yeran Sun, Amin Mobasheri
With the development of information and communications technology, user-generated content and crowdsourced data are playing a large role in studies of transport and public health. Recently, Strava, a popular website and mobile app dedicated to tracking athletic activity (cycling and running), began offering a data service called Strava Metro, designed to help transportation researchers and urban planners to improve infrastructure for cyclists and pedestrians. Strava Metro data has the potential to promote studies of cycling and health by indicating where commuting and non-commuting cycling activities are at a large spatial scale (street level and intersection level)...
March 8, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28243840/what-is-driving-obesity-a-review-on-the-connections-between-obesity-and-motorized-transportation
#9
REVIEW
Douglas M King, Sheldon H Jacobson
PURPOSE OF REVIEW: Traveling by automobile rather than walking or cycling can encourage obesity by eliminating physical activity. As national obesity rates in the USA have reached 37.9% in 2014, understanding the connections between obesity and transportation choices can help policymakers in the public health community propose effective obesity interventions at the national level. RECENT FINDINGS: Following from foundational studies examining associations between the built environment and leisure walking, recent studies consider a diverse set of transportation choices regarding mode (e...
February 27, 2017: Current Obesity Reports
https://www.readbyqxmd.com/read/28222159/the-role-of-spatial-mobility-in-malaria-transmission-in-the-brazilian-amazon-the-case-of-porto-velho-municipality-rond%C3%A3-nia-brazil-2010-2012
#10
Jussara Rafael Angelo, Tony Hiroshi Katsuragawa, Paulo Chagastelles Sabroza, Lino Augusto Sander de Carvalho, Luiz Hildebrando Pereira da Silva, Carlos Afonso Nobre
BACKGROUND: This study aims to describe the role of mobility in malaria transmission by discussing recent changes in population movements in the Brazilian Amazon and developing a flow map of disease transmission in this region. METHODOLOGY/PRINCIPAL FINDINGS: This study presents a descriptive analysis using an ecological approach on regional and local scales. The study location was the municipality of Porto Velho, which is the capital of Rondônia state, Brazil...
2017: PloS One
https://www.readbyqxmd.com/read/28220100/season-and-weather-effects-on-travel-related-mood-and-travel-satisfaction
#11
Dick Ettema, Margareta Friman, Lars E Olsson, Tommy Gärling
This study examines the effects of season and weather on mood (valence and activation) and travel satisfaction (measured by the Satisfaction with Travel Scale). Analyses are presented of 562 time-sampled morning commutes to work made by 363 randomly sampled people in three different Swedish cities asking them to use smartphones to report their mood in their home before and directly after the commutes. These reports as well as satisfaction with the commute obtained in summer and winter are linked to weather data and analyzed by means of fixed-effects regression analyses...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28215244/driving-home-from-the-night-shift-a-bright-light-intervention-study
#12
Denise M Weisgerber, Maria Nikol, Ralph E Mistlberger
Sleep deprivation (SD) impairs vigilance and increases the risk of driving accidents during the commute home after night work. Bright light (BL) can enhance alertness and cognitive performance. We examined the effects of BL (5600 lux) versus dim light (DL, 35 lux) at the end of a night awake on driving performance. METHODS: Subjects (N = 19, 22.8 ± 4 ya) completed three conditions, counterbalanced for order at >1 week intervals. The two overnight SD conditions began in the lab at usual bedtime...
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28188054/exposure-to-air-pollutants-during-commuting-in-london-are-there-inequalities-among-different-socio-economic-groups
#13
Ioar Rivas, Prashant Kumar, Alex Hagen-Zanker
People with low income often experience higher exposures to air pollutants. We compared the exposure to particulate matter (PM1, PM2.5 and PM10), Black Carbon (BC) and ultrafine particles (PNCs; 0.02-1μm) for typical commutes by car, bus and underground from 4 London areas with different levels of income deprivation (G1 to G4, from most to least deprived). The highest BC and PM concentrations were found in G1 while the highest PNC in G3. Lowest concentrations for all pollutants were observed in G2. We found no systematic relationship between income deprivation and pollutant concentrations, suggesting that differences between transport modes are a stronger influence...
April 2017: Environment International
https://www.readbyqxmd.com/read/28174661/movement-patterns-of-a-keystone-waterbird-species-are-highly-predictable-from-landscape-configuration
#14
Erik Kleyheeg, Jacintha G B van Dijk, Despina Tsopoglou-Gkina, Tara Y Woud, Dieuwertje K Boonstra, Bart A Nolet, Merel B Soons
BACKGROUND: Movement behaviour is fundamental to the ecology of animals and their interactions with other organisms, and as such contributes to ecosystem dynamics. Waterfowl are key players in ecological processes in wetlands and surrounding habitats through predator-prey interactions and their transportation of nutrients and other organisms. Understanding the drivers of their movement behaviour is crucial to predict how environmental changes affect their role in ecosystem functioning...
2017: Movement Ecology
https://www.readbyqxmd.com/read/28135613/impacts-on-air-pollution-and-health-by-changing-commuting-from-car-to-bicycle
#15
Christer Johansson, Boel Lövenheim, Peter Schantz, Lina Wahlgren, Peter Almström, Anders Markstedt, Magnus Strömgren, Bertil Forsberg, Johan Nilsson Sommar
Our study is based on individual data on people's home and work addresses, as well as their age, sex and physical capacity, in order to establish realistic bicycle-travel distances. A transport model is used to single out data on commuting preferences in the County Stockholm. Our analysis shows there is a very large potential for reducing emissions and exposure if all car drivers living within a distance corresponding to a maximum of a 30min bicycle ride to work would change to commuting by bicycle. It would result in >111,000 new cyclists, corresponding to an increase of 209% compared to the current situation...
April 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28119341/are-rural-places-less-safe-for-motorists-definitions-of-urban-and-rural-to-understand-road-safety-disparities
#16
Carolyn McAndrews, Kirsten Beyer, Clare E Guse, Peter Layde
The objectives of the study are to understand road safety within the context of regional development processes and to assess how urban-rural categories represent differences in motor vehicle occupant fatality risk. We analysed 2015 motor vehicle occupant deaths in Wisconsin from 2010 to 2014, using three definitions of urban-rural continua and negative binomial regression to adjust for population density, travel exposure and the proportion of teen residents. Rural-Urban Commuting Area codes, Beale codes and the Census definition of urban and rural places do not explain differences in urban and rural transportation fatality rates when controlling for population density...
January 24, 2017: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/28112714/-work-related-fatal-traffic-injuries-in-spain-according-to-travelling-reasons-and-sex-2010-2013
#17
María López-Ruiz, Núria Mancebo Fernández, Katherine Pérez, Laura Serra Saurina, Fernando G Benavides
OBJECTIVE: Most studies about work-related traffic injuries in Spain are based in labor administration information. The aim of this study was to carry out a description of fatal work-related traffic injuries in Spain according to travelling reason between 2010 and 2013, based on the Transport Authority database. METHODS: Descriptive study of fatal work-related traffic injuries that drivers between 16 and 70 years old suffered, whose reason for travelling was recorded as labour, occurred during working or commuting hours, between 2010 and 2013...
January 23, 2017: Revista Española de Salud Pública
https://www.readbyqxmd.com/read/28088011/particulates-and-noise-exposure-during-bicycle-bus-and-car-commuting-a-study-in-three-european-cities
#18
COMPARATIVE STUDY
Enembe O Okokon, Tarja Yli-Tuomi, Anu W Turunen, Pekka Taimisto, Arto Pennanen, Ilias Vouitsis, Zissis Samaras, Marita Voogt, Menno Keuken, Timo Lanki
BACKGROUND: In order to curb traffic-related air pollution and its impact on the physical environment, contemporary city commuters are encouraged to shift from private car use to active or public transport modes. However, personal exposures to particulate matter (PM), black carbon and noise during commuting may be substantial. Therefore, studies comparing exposures during recommended modes of transport versus car trips are needed. METHODS: We measured personal exposure to various-sized particulates, soot, and noise during commuting by bicycle, bus and car in three European cities: Helsinki in Finland, Rotterdam in the Netherlands and Thessaloniki in Greece using portable monitoring devices...
April 2017: Environmental Research
https://www.readbyqxmd.com/read/28039182/national-10-year-trend-in-road-injuries-involving-school-children-on-the-way-to-and-from-school-in-japan-2003-2012
#19
Haruhiko Inada, Jun Tomio, Shinji Nakahara, Xin Xu, Ayako Taniguchi, Masao Ichikawa
OBJECTIVES: To quantitatively describe the recent longitudinal trend in road injuries involving school children while commuting to and from school in Japan and to identify groups or situations with particularly large or small decreasing trends. METHODS: Data on the number of children aged 6-15 years who sustained road injuries while commuting were obtained, stratified by year, demographic characteristics, mode of transport and other variables. The rates of killed or seriously injured (KSI) children were calculated from the number of KSI cases (the numerator) and the product of population and the proportion of each mode of transport estimated using the Person Trip Survey data (the denominator)...
December 30, 2016: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/28007633/the-go-actiwe-randomized-controlled-trial-an-interdisciplinary-study-designed-to-investigate-the-health-effects-of-active-commuting-and-leisure-time-physical-activity
#20
Mads Rosenkilde, Martin Bæk Petersen, Anne Sofie Gram, Jonas Salling Quist, Jonas Winther, Simon Due Kamronn, Desirée Hornbæk Milling, Jakob Eg Larsen, Astrid Pernille Jespersen, Bente Stallknecht
Regular physical activity is efficacious for improving metabolic health in overweight and obese individuals, yet, many adults lead sedentary lives. Most exercise interventions have targeted leisure time, but physical activity also takes place in other domains of everyday life. Active commuting represents a promising alternative to increase physical activity, but it has yet to be established whether active commuting conveys health benefits on par with leisure time physical activity (LTPA). A 6-month randomized controlled trial was designed to investigate the effects of increased physical activity in transport (bicycling) or leisure time domains (moderate or vigorous intensity endurance exercise)...
December 19, 2016: Contemporary Clinical Trials
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