Approach Charts
 

Can someone please explain what is the 45m and 60 m highlighted in the chart.
Thanks
https://cimg1.ibsrv.net/gimg/pprune....eb04354a67.jpg

See labels above those numbers: FULL - ALS out

ALS = Approach Lighting System

If the ALS is fully working, the required RVR or visibilty is 45m - if the ALS is not working (i.e. "out") the required visibilty/RVR has to be 1200m

Reason being - the very intense approach lights leading to the runway threshold can be seen from over a thousand meters farther away than the regular runway lights, in fog, snow, or other heavy precipitation.

When required, ceilings are depicted prior to the associated visibility. Ceiling is always shown in smaller size in front of the RVR or VIS.

Thanks tradewind. I'm only an ex-controller but it had me puzzled - good to have a sensible explanation.