Hello hwangsu
Thank you for the request.
For discounted travel on public transport, there is a Disabled Passenger’s ID Card (Companion Travelcard), an identity card for passengers who are blind or have a visual impairment and the discounted GA Travelcard.
More Informations about Travel discounts for passengers with a disability, you can find here: Travel discounts for passengers with a disability | SBB
Kind regards,
StéphanieB