Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 194
Confusion; Situational Awareness
Other Unwanted Situation
General None Reported / Taken
Airport
The lack of taxiway signs at CHS needs to be addressed. We were day VFR with unlimited visibility so we were able to figure out where we were and where to go. In low visibility conditions or at night; however; the potential for a serious problem exists. Our clearance was to taxi to Runway 21 via B; C; A and cross Runway 33. Taxiway B is not marked at all. There is no sign indicating [Taxiway] C until after you turn onto C. Then the worst situation is there are no signs at all for [Taxiway] A until way after you turn onto A (your best guess) and come up on Runway 33. You don't see that sign until you have been taxiing for a while.
An air carrier Captain advised the Taxiway signage at CHS is inadequate and could be hazardous under low visibility conditions.