This rather fascinating map made an appearance on Reddit earlier today. Using data collected from the last Transportation Tomorrow survey, it charts travel patterns throughout Toronto. As is so often the case with maps like this, it's intriguing to identify geographic landmarks that are revealed by the information being plotted.

By way of example, the veritable explosion out of Union Station highlights just how crucial a transit up it is. Also easy to spot are hubs like Pearson International, Downsview Station, and the Yonge St. corridor, which runs right up the city. You can also spot Rouge Park by the absence of travel patterns in this area.

The use of census tracts for geographic areas plotted on the map does simplify the patterns a bit, but by foregrounding the obvious travel tendencies of commuters, a picture of the city as a series of transportation hubs emerges. Let us know what interesting stuff you spot in the comments. For a bigger version of the map, go here.