B777 first officer reports a taxiway incursion at rjaa while attempting to comply with taxi instruct...

Narrative:

Landed rjaa. [Received our gate assignment as we taxied] off 16R. Given ground clearance to taxi B hold short S4. Nighttime taxi. Then clearance right [left] on S4 left on charlie. The right [left] turn onto S4 was done and we then had trouble deciphering where C was because S4 was a 110 [70] degree right [left] turn and then C was another immediate 90 degree left turn; however taxiway C was not marked due to the new construction I believe. We were taxiing at about 4 or 5 miles an hour and then saw a sign for C to our left but this was not visible until passing charlie. Extremely poor signage. I believe this should be marked as a hotspot due to the poor signage and/or improved signage provided. We notified ground that we inadvertently passed C due to the poor signage and ground then cleared us straight on S4 and left on right to the gate. It was not an issue; there were no other aircraft in the area and there were no saftey issues. Ground did not have an issue with it.

Original NASA ASRS Text

Title: B777 First Officer reports a taxiway incursion at RJAA while attempting to comply with taxi instructions to the gate after landing. A complicated taxi route; poor signage and construction were cited as factors.

Narrative: Landed RJAA. [Received our gate assignment as we taxied] off 16R. Given ground clearance to taxi B hold short S4. Nighttime taxi. Then clearance right [left] on S4 left on Charlie. the right [left] turn onto S4 was done and we then had trouble deciphering where C was because S4 was a 110 [70] degree right [left] turn and then C was another immediate 90 degree left turn; however Taxiway C was not marked due to the new construction I believe. We were taxiing at about 4 or 5 miles an hour and then saw a sign for C to our left but this was not visible until PASSING Charlie. Extremely poor signage. I believe this should be marked as a hotspot due to the poor signage and/or improved signage provided. We notified ground that we inadvertently passed C due to the poor signage and Ground then cleared us straight on S4 and left on R to the gate. It was not an issue; there were no other aircraft in the area and there were no saftey issues. Ground did not have an issue with it.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1133942
Time
Date	201312
Local Time Of Day	0001-0600
Place
Locale Reference	RJAA.Airport
State Reference	FO
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	First Officer
Experience	Flight Crew Last 90 Days 350 Flight Crew Total 12000 Flight Crew Type 3600
Events
Anomaly	Deviation - Procedural Clearance Ground Incursion Taxiway

B777 first officer reports a taxiway incursion at rjaa while attempting to comply with taxi instructions to the gate after landing. A complicated taxi route; poor signage and construction were cited as factors.