Beijing cloverleaf maps

Thanks to Rania Ho at DancingToasters for scanning in these gorgeous maps of Beijing’s over-, under-, and around-passes.  As she writes on her blog, “it’s as if the civil engineer had “heard” there were such things as
cloverleaf interchanges in the world and then reversed engineered it in
the form of a chinese knot.” If you like maps, check out her slideshow here.