A carj crew, after landing at dca, exited the runway at the wrong taxiway.

Attributes
ACN	564891
Time
Date	200211
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dca.airport
State Reference	DC
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : commercial pilot : instrument pilot : multi engine pilot : atp
Experience	flight time last 90 days : 181 flight time total : 4590 flight time type : 1400
ASRS Report	564891
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	incursion : taxiway non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Airport Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Landing on runway 1 rollout, controller said to 'exit taxiway north, call ground.' I exited onto the taxiway with the sign for taxiway north and turned towards the gate, slowing to a stop after crossing the hold short lines. The signage shows only taxiway north exiting the runway at this point. However, if you follow the taxi lines off the runway and stay left, you are actually on taxiway N1. The only way to know this is to consult a diagram while exiting the runway -- not very practical at those speeds. In my opinion, the signs need to be changed to show this distinction.

Original NASA ASRS Text

Title: A CARJ CREW, AFTER LNDG AT DCA, EXITED THE RWY AT THE WRONG TXWY.

Narrative: LNDG ON RWY 1 ROLLOUT, CTLR SAID TO 'EXIT TXWY N, CALL GND.' I EXITED ONTO THE TXWY WITH THE SIGN FOR TXWY N AND TURNED TOWARDS THE GATE, SLOWING TO A STOP AFTER XING THE HOLD SHORT LINES. THE SIGNAGE SHOWS ONLY TXWY N EXITING THE RWY AT THIS POINT. HOWEVER, IF YOU FOLLOW THE TAXI LINES OFF THE RWY AND STAY L, YOU ARE ACTUALLY ON TXWY N1. THE ONLY WAY TO KNOW THIS IS TO CONSULT A DIAGRAM WHILE EXITING THE RWY -- NOT VERY PRACTICAL AT THOSE SPDS. IN MY OPINION, THE SIGNS NEED TO BE CHANGED TO SHOW THIS DISTINCTION.

Data retrieved from NASA's ASRS site as of July 2007 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.