Narrative:

We had just landed at ord on runway 14R and were exiting on the high speed turnoff onto taxiway T6. I was taxiing while the first officer said he was leaving communication #1 to talk to company to try and get us a gate assignment. Unfortunately, our company never knows what our gate will be until we are on the ground, due to a lack of gate space. Yet ground control always wants to know our gate as soon as we clear the runway. Ord is a very busy airport as everybody knows and ground control likes everybody to keep moving and don't stop. When ground control came over the radio they said to use taxiway A6 then taxiway B to the gate. When the ground controller had said this I was already initiating a turn onto taxiway T, which is the usual route. Shortly afterward the first officer came back with a gate for us and I informed him of the situation. The frequency was congested and the first chance that the first officer had to get back to ground control he did. We continued to taxi and 'kept moving' on taxiway T, and the ground controller gave us a new route on taxiway T to taxiway M to taxiway M2 then to the gate. Nothing was ever mentioned by the ground controller as to why we continued on taxiway T as opposed to taxiway B. Contributing factors would include only 1 pilot on the frequency when route (taxi) was issued and not having proper gate information before landing.

Related reports:

Google
 

Original NASA ASRS Text

Title: A CARJ CREW, AFTER LNDG AT ORD, CONTINUED FROM THE HIGH SPD ONTO THE PARALLEL WITHOUT CLRNC FROM GND CTL.

Narrative: WE HAD JUST LANDED AT ORD ON RWY 14R AND WERE EXITING ON THE HIGH SPD TURNOFF ONTO TXWY T6. I WAS TAXIING WHILE THE FO SAID HE WAS LEAVING COM #1 TO TALK TO COMPANY TO TRY AND GET US A GATE ASSIGNMENT. UNFORTUNATELY, OUR COMPANY NEVER KNOWS WHAT OUR GATE WILL BE UNTIL WE ARE ON THE GND, DUE TO A LACK OF GATE SPACE. YET GND CTL ALWAYS WANTS TO KNOW OUR GATE AS SOON AS WE CLR THE RWY. ORD IS A VERY BUSY ARPT AS EVERYBODY KNOWS AND GND CTL LIKES EVERYBODY TO KEEP MOVING AND DON'T STOP. WHEN GND CTL CAME OVER THE RADIO THEY SAID TO USE TXWY A6 THEN TXWY B TO THE GATE. WHEN THE GND CTLR HAD SAID THIS I WAS ALREADY INITIATING A TURN ONTO TXWY T, WHICH IS THE USUAL RTE. SHORTLY AFTERWARD THE FO CAME BACK WITH A GATE FOR US AND I INFORMED HIM OF THE SIT. THE FREQ WAS CONGESTED AND THE FIRST CHANCE THAT THE FO HAD TO GET BACK TO GND CTL HE DID. WE CONTINUED TO TAXI AND 'KEPT MOVING' ON TXWY T, AND THE GND CTLR GAVE US A NEW RTE ON TXWY T TO TXWY M TO TXWY M2 THEN TO THE GATE. NOTHING WAS EVER MENTIONED BY THE GND CTLR AS TO WHY WE CONTINUED ON TXWY T AS OPPOSED TO TXWY B. CONTRIBUTING FACTORS WOULD INCLUDE ONLY 1 PLT ON THE FREQ WHEN RTE (TAXI) WAS ISSUED AND NOT HAVING PROPER GATE INFO BEFORE LNDG.

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.