train order operation

signalling system based on timetable and manual train orders

en-US/ˈtɹeɪn ˈɑɹdɚ ˌɑpɚˈeɪʃən/
en-GB/ˈtɹeɪn ˈɔːdə ˌɒpəˈɹeɪʃən/

دسته بندی ها:

signalling block system