The trains in Metroville were all painted bright yellow with green ends.  They had comfortable orange seats and doors that hissed when they opened and closed.  But they were mostly empty.  Metrovillians preferred to ride in their roaring cars to go to work and to go shopping and to take their children to school.

Over the years Metroville grew from a very large town to a small city and then to a very large city.  As it grew, more and more people drove more and more cars and eventually the roads were so crowded that every journey took four times as long as it used to.  Metrovillians complained to the city government, which built beautiful freeways in response. (more…)