I'm sure that Ex has mentioned to you that road "sprinting" is very different than track "sprinting".
Sorta like comparing the "sprint" of a 100M foot race vs the "sprint" at the end of a marathon. Same word, different meanings.
Mark Cavendish is a prolific road "sprinter" but on the track, he's considered an enduro racer when compared to other world-class trackies.
Generally speaking, sprint events are around 80s or less in duration*.
*Yes, match sprints and keirin are longer, but a lot of that time is spent at low or moderate speeds.