As I understand it there are six aircraft class widths, with the 747 being either class E for a 400 or F for the 800
Would it not make sense for the taxiway centre lines to be a different colour depending on class?
I wouldn't want to be too bold and suggest the full range of colours to use as that would require an international committee but if in the above photos the yellow (big boys) line curved left and a lilac line continued straight on for corporate jets then it could help reduce the opportunity to cock up which should be the aim of the industry.
Heck they could go mad and fit coloured cats eyes as used on motorways for years.
Just an idea from a passenger
