Viking
Air Traffic Control Fully Certified
Confusion; Situational Awareness
Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Taxiway
General None Reported / Taken
Airport; Human Factors
While working Ground Control Aircraft X exited Runway 21 at A-10 and was instructed to taxi to parking via A and hold short of A-8. The aircraft read back the hold short; he then taxied through the intersection and nearly 't-boned' another aircraft joining A at A-8. In my opinion; and also based on the pilots statements; the airport signage is woefully inadequate. If the airport installed better signage it would help to reduce the chance of this happening again.
SDL Controller described a near collision with another taxiing aircraft; the reporter claiming less than adequate signage as the primary causal factor.