It's easy to think that making an identity system flexible means making it complex in some way. Of course, flexibility, like everything else in an identity system should be dictated some inherent, logical need for it.
On a busy city street, the most important thing you might need to know about a parking garage is where it is. It's so refreshing to see an identity built on such a simple and obvious conceit.
Apparently the alternative is a meaningless mark paired with bland type, that plays second fiddle to the wayfinding.