Definition

The term Reduced Aerodrome Visibility Conditions (RAVC) has been established to define those meteorological conditions where all or part of the manoeuvring area cannot be visually monitored from the control tower and consequently the personnel of the control units are unable to exercise visual control over the traffic in the area.

Visibility Conditions

To describe the ability of the personnel of the control units to exercise visual control over all traffic and of the pilots to avoid other traffic, four different visibility conditions are defined from Visibility Condition 1 through to Visibility Condition 4. The following graphic shows the relationship between the various Visibility Conditions.

Reduced Aerodrome Visibility Conditions (RAVC)

Notes: