Here is the TAF/METAR from paris @ this hour:?

Question

LFPG 280430Z 30003KT 0300 R27L/P1500.

So this means (in terms of the visibility: runway 27L at 1500 ft, or 1500m)? Big difference.

Answer 1

RVR is only measured in feet in the US.

In Europe, the 1500 does indeed mean RVR is greater than 1500 meters.

This is a cue for some operators as to what type of approach they can attempt.  1500m equals a Cat 1 (typical) approach.  Anything below that might signal a Cat II or Cat III might be required, and those require special training and authorization to conduct.

Answer 2

RVR is always measured in metres. The 'P' means 'plus' and is interpreted as 'more than'... so the RVR is 'more than 1500m', ie. LVP not required and it's a hint that you can do a cat 1 approach.

Answer 3

Last I checked RVR was in feet, making it 1500ft