Learjet 45
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 40; Flight Crew Total 6800; Flight Crew Type 200
Confusion; Communication Breakdown; Situational Awareness
Deviation / Discrepancy - Procedural Clearance; Ground Incursion Taxiway
General None Reported / Taken
Chart Or Publication; Human Factors; Airport
After exiting Runway 30L onto Juliet we were given a clearance to taxi to the FBO via Victor. I was approaching the Taxiway Victor signage and turned left before I reached the sign. It turns out that I turned on what I believe is now Taxiway Whiskey which the NOS chart shows as Runway 11/29. This is now a new taxiway which parallels Victor. The chart needs to be updated. The yellow line turns left onto Whiskey. I was confused as I had apparently already passed the sign for Whiskey when I was given the clearance and thought the first taxiway to the left would have been Victor. I now realize that I should have passed the taxiway sign before turning. I have brought up the idea of painting the letter of each taxiway to our runway safety action team; but this was deemed too expensive and there is apparently a paint shortage. I believe this idea would have helped me in this case at SJC where there are two parallel taxiways.
A Learjet 45 pilot reported confusion and a consequent taxiway incursion onto Taxiway Whisky when cleared via Victor at SJC.