EMB ERJ 170/175 ER/LR
Time Pressure
Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Ground Event / Encounter Other / Unknown; Ground Incursion Taxiway
Flight Crew Took Evasive Action; Flight Crew Requested ATC Assistance / Clarification
Human Factors
During the landing roll out I took controls at 60 knots. We were instructed without delay to take the high speed taxiway due to landing traffic on short final. As I vacated the runway I saw an airport operations vehicle driving towards us and not showing signs of slowing down. I applied maximum breaking to avoid a collision with the vehicle and a few moments later the ops vehicle swerved into the grass.  I asked Tower what the operations vehicle was doing on the taxiway; which ATC replied; 'I had no idea about any ops vehicles.'  The driver came on the frequency and apologized; which clearly isn't good enough. There was no damage or injuries.
EMB-175 pilot reported while taxiing off the runway they had to apply maximum braking to avoid a vehicle driving on the taxiway.