Civilperson's answer to your query is correct.
The minimum single face platform width (UK is 2.5m) is to ensure that passengers do not stand on the edge of the platform if there are any non-stopping trains, there will always be a minimum dimension for whatever railway system.
The platform...
Hi,
I'm a UK railway engineer with 20yrs experience and have also worked in Asia and other part of Europe.
Only just come accross this forum and there was a few closed threads I could have helped with, in terms or answers and information (i.e. switch design requirements and standard Autocad...