Roller Coaster

Q: Please clarify what it means when it says, "Finish Line running perpendicular to the direction of vehicle travel on the track." The vehicle travels in many different directions during its course. Does it mean finish line needs to be perpendicular to vehicle's beginning direction? (section: 3 / paragraph: f / sub-paragraph:  / line: 1)

A: The Finish Line should be perpendicular to the direction of the vehicle's travel when it crosses the Finish Line.