A toll is a charge to use a specific stretch of highway, bridge, or tunnel. For trucks, tolls are often higher than for cars because they scale with axles and weight, and they add up quickly on toll-heavy routes.
Fleets manage tolls with transponders or toll accounts — sometimes bundled into the same device as a Pre-Pass bypass — and track them as a trip cost. When a dispatcher compares routes, tolls factor into which one is actually cheaper once time and fuel are weighed in.