If you share my love of airports and the systems that support them, check out Lauren O’Neill’s gorgeous HOLDING PATTERN tumblr. She turns airport landing strips into something I’d be proud to hang on my wall.
The WIRED article that highlights O’Neill’s work also points out the way it shows off the unusual font used by airstrips.
The font is designed to be easy for air crew to print on the runways and easy for pilots to read without confusion. I assume they’re expecting pilots to come from the correct end of the runway every time, since the ‘6’ and the ‘9’ would be easy to confuse if they’re upside-down. But then, if the pilot’s at the wrong end of the runway, they’ve got bigger problems than the angle of the number they’re trying to read.