B-737 captain reported critical ground conflict shortly after beginning taxi for departure.

Attributes
ACN	1679205
Time
Date	201908
Place
Locale Reference	ORD.Airport
State Reference	IL
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 254 Flight Crew Total 2035 Flight Crew Type 398
Events
Anomaly	Conflict Ground Conflict Critical

Narrative:

Departing gate xx clear on right; clear left with vehicle distant left approaching with plenty time to stop. I started to taxi and vehicle sped up and passed me forcing me to stop to prevent my wingtip hitting his vehicle. After I stopped with taxi light on; several vehicles from right did not stop. I had to call operations to send out a wing walker to stop vehicles so I could taxi out as I had to start moving from a stop several ft. Closer to gates. The absolute ignoring of right of way is out of control at ZZZ.

Original NASA ASRS Text

Title: B-737 Captain reported critical ground conflict shortly after beginning taxi for departure.

Narrative: Departing Gate XX clear on right; clear left with vehicle distant left approaching with plenty time to stop. I started to taxi and vehicle sped up and passed me forcing me to stop to prevent my wingtip hitting his vehicle. After I stopped with taxi light on; several vehicles from right did not stop. I had to call Operations to send out a wing walker to stop vehicles so I could taxi out as I had to start moving from a stop several ft. closer to gates. The absolute ignoring of right of way is out of control at ZZZ.

Data retrieved from NASA's ASRS site 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.