In my time on the planet, Springfield has struggled with bus service. At some times it just hasn't existed. There was a point they considered little buses. To get around, many young people would hop trains that slowed down as they rolled through town. I remember when they got their first air-conditioned bus. It was a big deal.
sigh
Anyway, while their current bus service, SCAT, is limited to weekday dayshift riders, their ridership has been steadily growing of late due to gas prices as well as new and adjusted (improved) routes.
Still, if you are healthy, with an hour wait between buses, you could probably walk most of the way to most anywhere in town.

Noose Son story here.