Curved sidings near turntable?

[RobertInOntario]

I've been slowly working on adding a turntable to my switching layout (<!-- l --><a class="postlink-local" href="http://www.the-gauge.net/forum/viewtopic.php?f=17&t=5647">viewtopic.php?f=17&t=5647</a><!-- l -->). This addition to my layout is beginning to come along. I was thinking of adding just 3 tracks.

Is it prototypical to have a couple curved sidings (where the locos would be stored or "parked")? I'm trying to keep the layout as narrow as possible, and using the curved sidings would help it to take up less space (i.e. width).

Thanks,
Rob