Unfortunately it’s not possible to build roads “with enough capacity” in major cities. Beyond a certain point, the geometry of space does not allow enough capac

Unfortunately it’s not possible to build roads “with enough capacity” in major cities. Beyond a certain point, the geometry of space does not allow enough capacity to satisfy the needs, because growing the roads by enough to have capacity requires spreading things further apart, which means more traffic must go further, which means more cars on the road, and more lanes means more merging and lane-changing, which slows things down further.