Last updated: 14 July 2026
Hostile Vehicle Mitigation
Hostile vehicle mitigation for events people trust
Hostile vehicle mitigation (HVM) is the use of physical barriers and operational planning to protect crowds from vehicle attacks and accidental intrusions. CATO Group plans and deploys HVM for major public events across NSW and South East Queensland, including Sydney's New Year's Eve celebrations. Part of our end-to-end traffic management services.
The question every event producer gets asked now
Councils, police and insurers now expect an HVM answer in your event plan. "We'll have some trucks parked there" doesn't pass anymore.
CATO delivers assessed, purpose-planned HVM — barrier selection, placement design, deployment crews and removal — integrated with your traffic and crowd plans so protection doesn't strangle access.
Delivered HVM for Sydney NYE across City of Sydney and North Sydney — among the highest-profile crowd events in Australia.
FAQ
HVM questions
Relevant projects
Relevant projects & case studies
HVM perimeters and vehicle-as-a-weapon mitigation we've delivered on major public events:
Event · Sydney CBD
Sydney New Year's Eve
Rated HVM perimeter, hostile-vehicle mitigation planning and coordination with NSW Police across the CBD lockdown footprint.
- HVM
- Events
- CBD
Event · 50,000-person march
Sydney WorldPride
HVM barriers and pedestrian-flow design for a 50,000-strong march, including staged deployment and rapid pack-down.
- HVM
- Pedestrian
- Events
Event · Course-wide closures
Sydney Marathon
Course-perimeter protection combining road closures, marshals and vehicle mitigation at key crowd pinch-points.
- Events
- Perimeter
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