However, once an area builds real transit, like lightrail, or a subway or something, there's pressure to integrate the systems, and suddenly bus routes will optimize to connect people with those systems.
This is completely anecdotal, but I've noticed massive bus route redesigns in a couple places where transit comes on-line. A 45 minute meandering bus "loop" turning into a 15 minute direct route to the local transit station, which also works well for commuting as offices tend to be in high-density commercial zones near transit so the total commute time is within spitting distance of just driving.