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Mapping the visibility of smokers across a large capital city
Journal article   Open access   Peer reviewed

Mapping the visibility of smokers across a large capital city

Roberto Valiente, Francisco Escobar, Jamie Pearce, Usama Bilal, Manuel Franco and Xisca Sureda
Environmental research, v 180, 108888
Jan 2020
PMID: 31706598
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
https://doi.org/10.1016/j.envres.2019.108888View
Published, Version of Record (VoR) Open

Abstract

GIS Smoking visibility Smoking normalization Viewshed analysis
Smoking visibility may affect smoking norms with implications for tobacco initiation, particularly amongst youths. Understanding how smoking is distributed across urban environments would contribute to the design and implementation of tobacco control policies. Our objective is to estimate the visibility of smokers in a large urban area using a novel GIS-based methodological approach. We used systematic social observation to gather information about the presence of smokers in the environment within a representative sample of census tracts in Madrid city in 2016. We designed a GIS-based methodology to estimate the visibility of smokers throughout the whole city using the data collected in the fieldwork. Last, we validated our results in a sample of 40 locations distributed across the city through direct observation. We mapped estimates of smokers' visibility across the entire city. The visibility was higher in the central districts and in streets with a high density of hospitality venues, public transportation stops, and retail shops. Peripheral districts, with larger green areas and residential or industrial land uses, showed lower visibility of smokers. Validation analyses found high agreement between the estimated and observed values of smokers’ visibility (R = 0.845, p=<0.001). GIS-based methods enable the development of novel tools to study the distribution of smokers and their visibility in urban environments. We found differences in the visibility by population density and leisure, retail shops and business activities. The findings can support the development of policies to protect people from smoking. •This study demonstrates that GIS can assist in estimating smokers' visibility at any point within a large city.•Our findings were validated and show an uneven distribution of smokers' visibility across the urban environment.•Hospitality venues and public transportation stops were the places with the highest visibility of smokers.•This study offers relevant insights for the future to reduce smokers' visibility and to denormalise tobacco use.

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10 citations in Scopus

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UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#3 Good Health and Well-Being

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Environmental Sciences
Public, Environmental & Occupational Health
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