Narrative:

Holding short of runway 10C at taxiway west; we were given takeoff clearance. Instead of turning onto runway; I taxied across runway 10C. No other conflicting traffic. Did not enter any other active runways. I failed to interpret 10-9 page correctly as well as surface markings. The 10-9 chart has the runway number over the taxiway that leads onto the runway obscuring the fact that it is actually a taxiway. The lead line to runway 10C is not what I am use to and there are no yellow chevrons painted on the concrete to indicate that a displaced start to the runway exists. The hold short signage says runway 10C approach which made me think it was a localizer hold short and falsely gave me the impression that we had further to go to get to the active. Although I accept full responsibility for this mistake; I believe that the surface markings and signage could be improved to help avoid the same mistake. Tower called to tell us I had not made the turn onto the active runway. Improve airport markings and signage for runway 10C.

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Original NASA ASRS Text

Title: AN EMB135 PLT RPTS FAILING TO TURN ONTO PIT RWY 10C AT TXWY W WHEN CLRED FOR TKOF BECAUSE RWY 10C'S END MARKINGS AT THE W INTXN ARE NOT CLR.

Narrative: HOLDING SHORT OF RWY 10C AT TXWY W; WE WERE GIVEN TKOF CLRNC. INSTEAD OF TURNING ONTO RWY; I TAXIED ACROSS RWY 10C. NO OTHER CONFLICTING TFC. DID NOT ENTER ANY OTHER ACTIVE RWYS. I FAILED TO INTERPRET 10-9 PAGE CORRECTLY AS WELL AS SURFACE MARKINGS. THE 10-9 CHART HAS THE RWY NUMBER OVER THE TXWY THAT LEADS ONTO THE RWY OBSCURING THE FACT THAT IT IS ACTUALLY A TXWY. THE LEAD LINE TO RWY 10C IS NOT WHAT I AM USE TO AND THERE ARE NO YELLOW CHEVRONS PAINTED ON THE CONCRETE TO INDICATE THAT A DISPLACED START TO THE RWY EXISTS. THE HOLD SHORT SIGNAGE SAYS RWY 10C APCH WHICH MADE ME THINK IT WAS A LOC HOLD SHORT AND FALSELY GAVE ME THE IMPRESSION THAT WE HAD FURTHER TO GO TO GET TO THE ACTIVE. ALTHOUGH I ACCEPT FULL RESPONSIBILITY FOR THIS MISTAKE; I BELIEVE THAT THE SURFACE MARKINGS AND SIGNAGE COULD BE IMPROVED TO HELP AVOID THE SAME MISTAKE. TOWER CALLED TO TELL US I HAD NOT MADE THE TURN ONTO THE ACTIVE RWY. IMPROVE AIRPORT MARKINGS AND SIGNAGE FOR RWY 10C.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.