IgorEliezer, DirrrtyDirk: From where you know, what the translation is absent? You checked?
Isaac.Eiland-Hall, I can send bug reports.
Quite certain since it's simply how simutrans works.

What you see there is just the object's name displayed instead of a nicer formatted text. Something the game does automatically with every object - unless a translation is present. That's basically all that translations files do: read an object name and display a certain text instead. Easy to fix - takes two simple lines of text.
I don't know who is in charge of translations etc. these days, but you could even fix it yourself:
Go into pak128\text and locate your language's translation file. Let's assume English for this example.
So you'd open en.tab with a text editor (e.g. Notepad++).
Translation files always come with paired lines:
Object name (odd line number)
Translation (even line number)
You could add your own lines anywhere (as long as you keep the odd and even lines as they are).
Road_070
Your text about what the road should be called
After the next start of the game, it should be all done.
But as always: a) backup the file before you edit and b) be careful und thorough - sloppy work creates tons of problems, instead of solving just one.
Edit: This appears to be the solution:
Also simutrans is case sensitive, so "Road" is not the same as "road". Why object names and translation files are all out of sync... I don't know.
Oh and maybe the translation is not entirely missing but simply has that text with the underscores in it to be displayed - which would still be sub-optimal.