The skew you mention for mass transit exists for individual vehicles too. In New York it's baked in that the avenues, running north-south, are wider than the east-west streets and have longer greens at intersections.

The 15-minute city idea is now a real trigger issue. It's originally urban planning concept so I understand it's more about design the city in such a way that you /can/ live most of your life within a 15mins journey rather than assuming that's already the case (or worse as some conspiracy theories assume).