title: A web-based route planning tool to reduce cyclists' exposures to traffic pollution: a case study in Montreal, Canada.
abstract: We developed a web-based route planning tool for cyclists in Montreal, Canada, using spatial monitoring data for ambient nitrogen dioxide (NO2). With this tool, we estimated exposures to NO2 along shortest routes and lower exposure alternatives using origin-destination survey data. On average, exposures were estimated to be lower by 0.76 ppb (95% CI: 0.72, 0.80) relative to the shortest route, with decreases of up to 6.1 ppb for a single trip. Cumulative exposure levels (ppb km) decreased by approximately 4%. In general, the benefits of decreased exposure could be achieved with little increase (less than 1 km) in the overall route length.
authors.affiliation: McGill University, Department of Civil Engineering, Montreal, Quebec, Canada.
authors.forename: Marianne
authors.initials: M
authors.lastname: Hatzopoulou
authors.forename: Scott
authors.initials: S
authors.lastname: Weichenthal
authors.forename: Guillaume
authors.initials: G
authors.lastname: Barreau
authors.forename: Mark
authors.initials: M
authors.lastname: Goldberg
authors.forename: William
authors.initials: W
authors.lastname: Farrell
authors.forename: Dan
authors.initials: D
authors.lastname: Crouse
authors.forename: Nancy
authors.initials: N
authors.lastname: Ross
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000397:Air Pollution / Q000032:analysis; D000465:Algorithms; D001642:Bicycling; D002648:Child; D002675:Child, Preschool; D002947:Cities; D004781:Environmental Exposure / Q000517:prevention & control*; D005260:Female; D006801:Humans; D020407:Internet; D008297:Male; D008377:Maps as Topic; D008875:Middle Aged; D009585:Nitrogen Dioxide / Q000032:analysis; D011792:Quebec; D001335:Vehicle Emissions; D055815:Young Adult
chemical_list: D001335:Vehicle Emissions; D009585:Nitrogen Dioxide