MINIT is a longitudinal flow-management restriction that specifies the time interval required between aircraft proceeding along the same route or converging routes. Where MIT uses distance, MINIT uses time.
MINIT is normally applied when:
Traffic flows are long-range, making distance separation difficult to manage tactically
Oceanic or procedural airspace is involved (Gander Oceanic, Reykjavik, Shanwick, etc.)
Downstream capacity is reduced and time spacing is a more reliable way of smoothing traffic
Navigation performance varies, making simple mileage less precise
Best use: To assist Oceanic ATC units for mitigating capacity limitations
