I might have missed while I skim read a very accurate detailed post on low vi's ops but didn't see a para on SMCGS. Not all airports have it, the taxiway centelines are lit like a trail of breadcrumbs guiding the pilot to the runway or terminal.
fun fact, the ATC at Aberdeen is shaped so as not to impinge on the runway low vis cone. Or was 20 years ago when I was on the ramp there.