Figure 3.
The charts comprise panel a and panel b. Panel a allocates 72 per cent to the 10 largest weight drivers and 28 per cent to others. The expanded breakdown gives Single-axle bogie 19 per cent, Body shell 18 per cent, Passengers 7 per cent, Panelling total 6 per cent, Air conditioning 5 per cent, Toilet 4 per cent, Windows 4 per cent, Insulation 3 per cent, Electrical supply units 3 per cent, and Door interior 3 per cent. Panel b allocates 75 per cent to the 10 largest weight drivers and 25 per cent to others. The expanded breakdown gives Single-axle bogie 19 per cent, Body shell 18 per cent, Passengers 9 per cent, Panelling total 6 per cent, Business seats plus reclining function 6 per cent, Air conditioning 5 per cent, Windows 4 per cent, Insulation 3 per cent, Electrical supply units 3 per cent, and Toilet 2 per cent.(a) Ten most significant drivers for the end coach; (b) ten most significant drivers for the middle coach