When driving behind a large heavy truck that is signaling to turn right at a tight intersection, why should you avoid squeezing alongside its right side?

1. Heavy trucks always turn left before turning right to clean their tyres
2. Large vehicles must swing wide to the left to negotiate the turn, and their rear wheels track close to the right curb (off-tracking)
3. Truck drivers have zero blind spots on their right side
4. The truck is legally required to park at the corner before turning