Turn Circle Calculations

Type approved vehicles need to conform to European Turning Circle Regulations. Even if a vehicle is not going for Type approval the turning circle characteristics of a new vehicle design may need to be understood.

Granning can provide vehicle turning circle calculations which can provide vehicle designers with information such as:

  • The effect of adding additional axles to vehicle.
  • The effect of adding a steering axle to a vehicle.
  • How moving the axle bogie forward or back changes the turning circle.
  • The effect of different toeing trucks on turning circles.
  • The rear outswing of the machine.
Vehicle Length Turn Outside Radius Inside Radius Width Road Space Out Swing
up to 17.5m 360 deg 12.5m 5.3m 7.2m 0.8m
17.5m to 20m 120 deg 12.5m 5.3m 7.2m 1.1m
20m to 23m 120 deg 14m 6.5m 7.5m 1.4m
23m to 25m 120 deg 14m 6m 8.0m 1.4m
25m to 27m 120 deg 14m 5m 9.0m 1.4m
Approval Services – Turn Signal Calculations
Approval Services – Turn Signal Calculations
Approval Services – Turn Signal Calculations