Purpose: These maps display the regions within a city that can be accessed in less than an hour from its center, across varying transport modes
Brief Methodology: Population-weighted centroids were generated for the CT census level using centroids and population at the DA census level. Travel times were calculated from each city’s central location to the weighted centroids in each CT census level for each travel mode. All travel times above an hour are filtered out. Where maximum travel times are less than an hour (ex. driving in Ottawa), this is because the OpenStreetMap files only capture road data for the city at hand, not beyond.
Created by: Shiv Yücel
Personal Website: https://shivyucel.github.io/
Transport Routing Analysis Package: Pereira, R. H. M., Saraiva, M., Herszenhut, D., Braga, C. K. V., & Conway, M. W. (2021). r5r: Rapid Realistic Routing on Multimodal Transport Networks with R5 in R. Transport Findings, 21262. https://doi.org/10.32866/001c.21262
Canadian Census Data Access Package: von Bergmann, J., Dmitry Shkolnik, and Aaron Jacobs (2021). cancensus: R package to access, retrieve, and work with Canadian Census data and geography. v0.4.2.
Route Data: OpenStreetMap
Public Transport Data: Toronto Transport Commission’s GTFS data (October 12 2020), Société de transport de Montréal GTFS data (October 9 2021), and OC Transpo GTFS Data (December 7 2021). Public transit travel times are calculated from schedule at 17:00.