A web-based route planning tool to reduce cyclists' exposures to traffic pollution: A case study in Montreal, Canada
2013
Hatzopoulou, Marianne | Weichenthal, Scott | Barreau, Guillaume | Goldberg, Mark | Farrell, William | Crouse, Dan | Ross, Nancy
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 0.76ppb (95% CI: 0.72, 0.80) relative to the shortest route, with decreases of up to 6.1ppb for a single trip. Cumulative exposure levels (ppbkm) decreased by approximately 4%. In general, the benefits of decreased exposure could be achieved with little increase (less than 1km) in the overall route length.
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