Large Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 7
Communication Breakdown; Confusion
ATC Issue All Types; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Taxiway
Airport
Aircraft X was issued taxi clearance to RWY 28R via taxiways K; V; and A. Read back was accurate. While taxiing the aircraft turned on A5 and joined A. V is the next taxiway after A5 if taxiing eastbound for RWY 28R. TWY V is preferred by ATC since A5 leads directly onto RWY 28R and V does not. Also aircraft often exit RWY 28R on A5 (high speed exit) so an aircraft mistakenly using A5 it is at risk of an opposite direction issue with aircraft exiting RWY 28R. This specific mistake has been observed numerous times by many different air carriers. Possible reason for why it happened are confusing signs and markings on the taxiway. Take a look at the taxiway signs and markings to see if they can be improved.
Reporter describes confusing taxiway markings that may lead to a runway incursion.