From Neil Salmond:

I just came across this golden nugget in Halcrow’s traffic forecasting report for the removal of Vancouver’s viaduct stubs:

Although past trends from actual counts show a decrease in automobile volumes, the model does predict an increase of just over 4% in vehicle-based travel as a result of land use growth. Even though past trends have shown a decrease in auto travel to and from downtown, the model predicts a slight increase. This is likely a reflection of the model not accounting for vehicle ownership which is low in the downtown area compared to other parts of the region.