Homer Watson and Ottawa Three Lane Roundabouts

[plam]

In Montreal, streets go east/west from Boul. St. Laurent which is the traditional dividing line between French and English Montrealers (although this is no longer true).
Also, Montreal is tilted so when you're driving down a road labeled Ouest (West) you're actually going South West. Everyone goes along with the big lie and it works out well.

Worked out in the pre-GPS-map era. It's a bit more confusing for newbies now I think, because they look at maps actually oriented north.

The other part is that north/south it goes from 1 at the St. Lawrence on the south end up to 10000s or so at the Rivière des Prairies.

Seattle's grid goes out really far from the centre. The grids are kind of wonky in the centre (because there are several) but more grid-like further out.