I have a chance to convince some city officials to replace some of the lawn grass in a local park with some other plants. The problem is, the entire area must be open for people, and possibly dogs, to walk on. As far as any of us can tell, for all it's downsides, lawn grass is the single best plant at surviving foot traffic.
Can anyone counter that argument with examples of other plants, even other grasses, that demonstrably handle foot traffic at least as well as lawn grass does? Huge, huge bonus points if you can point me to a book, study, or even just an internet article that backs up your claim, because showing my research will be the key to winning over the park officials. Thanks!
EDIT: The location is Washington DC, USDA zone 7A.