In Belgium, each railway level crossing gets an address to win valuable time in accidents.
Translated in English ;
And talking about such, in Geleen(Holland) are some ‘lucky’ people →
https://www.hbvl.be/cnt/dmf20181203_04005994/video-heftige-beelden-opnieuw-bijna-ongeval-bij-onbewaakte-spoorwegovergang-geleen
Also in Luik(Belgium)
I guess the only relevant information that is missing in OSM at the moment, is the ref number of the crossing itself.
[Edit: make the sentence readable]
Ik probeer de nummers van de toegangen tot de NMBS terreinen te fotograferen, maar dat lukt niet altijd.
https://www.mapillary.com/app/?lat=50.892811361666645&lng=4.544636215833293&z=17&pKey=hnDluig6a_SuD8S2YeMDUA&feedItem=user-tKLqKVmOKqyrzeIUbWBtAQ-activity-user-tKLqKVmOKqyrzeIUbWBtAQ-publishing_done-image%3A1544197118260&focus=photo&x=0.5949656428291389&y=0.5791906676565844&zoom=0.518466579101113