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Gantry with 3 legs

Gantry with 3 legs

Passive safety gantry with three legs for signs and all other types of traffic information and surveillance above the road with several lanes and a wide span


Complete gantry with three legs includes:

  • Lattix® passive safety legs
  • Lattix® passive safety transsom
  • Foot plates with washers and bolts
  • 90 degree connectors
  • Endplates at open end of transsom

The Lattix® 4438 mast system can be used as mast for sign support, other information and surveillance equipment or other applications. The mast is delivered as a complete assembly including mast, base plate and top plate.


The mast is tested and approved according to:

  • EN 12899-1, Fixed, vertical road traffic signs
  • EN 12767, Passive Safety of support of structures for road equipment


Full-scale impact crash tests and simulations have been performed according to EN 12767 at a speed of 35 km/h and 100 km/h with 6,3 m mast length. Simulations show that the mast will have equal performance up to 8,623 m length. Consequently, the mast is approved for maximal 8,623 m and minimal 1,8 m from the ground to bottom of sign.


The sign mounted to a single mast should not weight more than 200 kg and needs to be dimensioned according to local wind loads.


All performance presumes sufficient foundation.


Performance under vehicle impact (passive safety) according to EN 12767:2000


Performed speed class tests and simulations

35 km/h and 100 km/h

Approved speed class


Approved function class

NE (non energy absorbing)

Approved safety class





Resistance to corrosion

Aluminium, class SP 2


The Lattix® 4438 mast system can be coated (powder-coated) if desired.

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