Operating costs for different modes of transit Automobile (Small city) Automobile (Medium city) Automobile (Large city) Bus Heavy rail Commuter rail Light rail $0.00 $0.20 $0.40 $0.60 Vehicle operation - $0.80 - $1.00 $1.20- Cost per passenger-mile Roadway costs Parking costs • $1.40 $1.60 $1.80

The following graph shows operating costs for different modes of transit. The graph includes three types of rail. Heavy rail is designed to carry more passengers than light rail, but both often make frequent stops within cities. Commuter rail is used to move people longer distances with fewer stops. According to the graph, which of the following can you conclude?