Light Transport
Flight Crew Commercial
Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Human Factors
On taxi-in at ORD; just east of gate there was a vehicle crossing Taxiway B and A. We were taxiing north on Taxiway B. Upon reaching this vehicle crossing; there was a tow truck proceeding across Taxiway B. Air carrier tug; Vehicle #X was behind the tow truck and it appeared they were not going to stop. I advised the Captain of the approaching vehicle; he proceeded to come to a complete stop. The driver of the vehicle looked directly at us; but continued across the taxiway. Had the Captain not stopped the aircraft; a collision would have occurred. ORD Ground Control was advised of the encounter.I believe the tug operator saw the tow-truck proceeding across the taxi-way and followed in suit. Ground vehicle operators are looking for very large aircraft; not small aircraft like ours at ORD. This particular vehicle crossing has proven to be very dangerous.
Light Transport Captain reported a ground conflict with a vehicle during taxi-in at ORD airport.