of course its "acceptable" just not many coasters do it, but yes, it is ok... but... i am actually doing one like that now, its a big loop, so i would definatly say yes, its fine...
no he means, make it a perfect "U", dont make it half a "U", like, if the station ends right off the picture, then that would only be half a "U" which is normally not good, unless a fantasy, but, i would not use unless its a full "U"
if that helped at all... lol. i mightof just confised you more [;)]
^So the center must be flat and only the back can curve upwards?
As first an excellent ride, is also an excellent example [;)] Tie's "Lewp" is a simple, pleasant ride with a good example of how a curved station should be adjusted.
My reasoning behind my statement is that it only makes sense to make the whole station comfortable to stand on. One part being at an angle and another being flat just doesn't make sense.