A pilot exited the active runway onto a second active runway at ccr.

Attributes
ACN	447922
Time
Date	199908
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ccr.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	ground : taxi
Route In Use	approach : svfr
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot oversight : pic
Qualification	pilot : flight engineer pilot : private pilot : atp
Experience	flight time last 90 days : 200 flight time total : 5000
ASRS Report	447922
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After a lower than normal visibility landing on runway 32R, concord, ca, I landed longer than planned. Tower directed me to turn off the runway, so I did to the west. At this point, I thought I was on a taxiway but I was on a runway (runway 19R). I stopped, clear of 'the active' and tower had to direct me to turn off the runway, which I didn't expect was being used. In short, I lost my ground situational awareness and tower had to direct me around! To make matters worse, I didn't think the txwys/runways were adequately labeled (for a small airplane driver to see) why not label in paint along the centerline also?

Original NASA ASRS Text

Title: A PLT EXITED THE ACTIVE RWY ONTO A SECOND ACTIVE RWY AT CCR.

Narrative: AFTER A LOWER THAN NORMAL VISIBILITY LNDG ON RWY 32R, CONCORD, CA, I LANDED LONGER THAN PLANNED. TWR DIRECTED ME TO TURN OFF THE RWY, SO I DID TO THE W. AT THIS POINT, I THOUGHT I WAS ON A TXWY BUT I WAS ON A RWY (RWY 19R). I STOPPED, CLR OF 'THE ACTIVE' AND TWR HAD TO DIRECT ME TO TURN OFF THE RWY, WHICH I DIDN'T EXPECT WAS BEING USED. IN SHORT, I LOST MY GND SITUATIONAL AWARENESS AND TWR HAD TO DIRECT ME AROUND! TO MAKE MATTERS WORSE, I DIDN'T THINK THE TXWYS/RWYS WERE ADEQUATELY LABELED (FOR A SMALL AIRPLANE DRIVER TO SEE) WHY NOT LABEL IN PAINT ALONG THE CTRLINE ALSO?

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.