Unlike Tokyo, Sapporo was layed out in Western fashion from the start.
What do you mean ? I thought that Sapporo had a similar lay out to Kyoto, which took it from Ancient Chinese Chang'an (Xi'an). You'll never see such perpendicular vertical and horizontal streets anywhere in Europe. I guess you thought about American cities. The question is who copied whom ? As the US have much newer cities than Europe and Asia, it wouldn't be wrong to say that American have followed the traditional Chinese grid pattern lay out rather than the Western (i.e. European) one.