What are the minimum site dimensions for tunnel, rollover, and bus wash?

Typical guidelines: tunnel width ~3.8 m with overall length 9–17 m (customizable), rollover width ≥4 m, height ≥3 m, length ≥9 m, and bus wash bays around 5.2 m width and up to ~4.2 m cleaning height. Final dimensions are confirmed during site design.