Commercial Fixed Wing
Confusion; Distraction
Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Illness / Injury; Ground Event / Encounter Person / Animal / Bird
General Physical Injury / Incapacitation
Environment - Non Weather Related; Human Factors; Procedure
I was preparing [a gate] for a flight.  I was attempting to locate a carry on bag cart which are usually located along the wall of the building.  I noticed there was not one; so I proceeded to look for one elsewhere.  I started to drive to [the gate] when I noticed a van stop to my left.  At the time I thought he was stopping to let me get by; but it was hard to see because [the ground handling contract company] had equipment all around the gate because they were preparing for a flight.  After the van stopped I went forward and that is when I struck a [ground handling contractor] employee driving an electric tractor.  After I struck him he fell out of and rolled across the hood of my tractor.  I immediately stopped and checked to see if he was OK.  Upon noticing he was injured I called the board Lead to call 911 and to send a Supervisor to the gate.
A ramp driver struck and injured an electric tug driver because he did not see him among the other vehicles.