N-am găsit referinţe pentru aceată curbă de mers, dar mă gândesc că nu prea are ce altceva să fie .

The train operation curve is a graphic representation of a train's
traveling status. It shows the relationship between the train's distance
and speed. Generally, it is called the run curve.
In 1992 the East Japan Railway Company developed a system called
"Hercules" that would create such a run curve.


(2) “Simulate Train Operations” use case: edit, modify, and execute train run curve simulation schemes.
(3) “View Simulation Results” use case: view the simulation result.