Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP)
Confusion
Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway
Flight Crew Became Reoriented
Human Factors; Procedure
We were taxiing to Runway 8 via Q to hold short of Q2. We were then instructed to taxi to Runway 8 and hold short on the right side of the pad. We initially stopped short of the proper hold line; but then saw the other hold short line closer to Runway 8. I started to taxi towards the next hold short line so I could be in the right side of the holding pad. A better instruction would have been to turn right and hold short of Runway 8 on P. At the time I felt I was still on the taxiway and needed to proceed into the pad area.
Air Carrier Captain reports a runway incursion due to confusion over which hold line is the proper line to hold short of.