Secret control
A timing point not announced to the crews. It records the transit time unnoticed and thus reveals deviations from the prescribed target time or average speed.
A secret control is a timing point whose exact location the crews do not know. Unlike an open time control, it is not announced; it records the transit time unnoticed. This checks whether the prescribed target time or average speed was kept over the whole sector – not only at known points. In the Italian prova di media these points are called controlli or rilevamenti segreti and are the heart of the scoring.
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Related terms
Regularity test
A scored test in which a section must be driven at a prescribed, as-constant-as-possible average speed. Consistency is scored – not hitting a single target time as in a time trial.
Regularity rally
An event where the aim is to drive as evenly as possible. Deviations from the set target time and the required average speed are scored, usually via at least one secret time control.
GPS timing
Modern timing via a GPS box or transponder in the car: it records position and time continuously and allows measuring points with no visible installation on the road.