In the diagram above:
- L – Wheelbase of the truck
- C – Front overhang
- d – Vehicle width
- w – Road width
- r – Minimum turning radius
- R – Outer turning radius
- 0.5 – Safety width on the outside of the vehicle body
- L + c – Calculation method when the vehicle body does not protrude from the road
Based on the above, we can derive the relationship between road width, turning radius, and vehicle dimensions as follows:
