A321
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Conflict Ground Conflict; Less Severe; Flight Deck / Cabin / Aircraft Event Illness / Injury; Ground Event / Encounter Other / Unknown
Flight Crew Returned To Gate; General Flight Cancelled / Delayed
Human Factors; Procedure
Pushed back. Disconnected from the tug; pin and salute. Called for taxi; FO read back instructions and I turn on the taxi light and we started moving. I noticed from the right and employee bus coming at speed from right to left. I braked. The brakes didn't catch at first the ground was a little slick with de-ice fluid. The brakes did catch and the plane stopped quickly. I checked on everyone in the back and was informed [a] FA had fallen and needed medical attention. We contacted ramp and went back to the gate to get her medical attention. Bus never stopped when the taxi light was on and plane was in motion. Vehicles on the tarmac should give way when an airplane has its taxi light on and is under way.
A321 Captain reported abruptly stopping on taxiway due to employee bus cutting across in front of the aircraft.