But the driver for building roads is frequently that roads enable an upgrade in zoning for land that fronts on those roads. More modern roadways are quite dist

But the driver for building roads is frequently that roads enable an upgrade in zoning for land that fronts on those roads. More modern roadways are quite distant and independent of even the usual retail/restaurant establishments. You have to take an exit. These roads tend to be toll. I don't know how anyone who hasn't used them would be able to see what I mean, but around Houston, the new 99 and I45 stand as examples of the two approaches.