Road crossings are closed by directional reservation - I think that is too early, they should close only on train approach (red reservation). See the server game and the crossings near Trnava Predmestie. They get closed when train comes from Trnava (main station)
I am currently reviewing old bug reports and I notice that this one appears to have no reported resolution. May I ask whether this can still be reproduced?
This seems to be fixed