Night Time Urinals
I recently discovered this posting on the Urilift: http://www.johnchow.com/the-worlds-most-high-tech-urinal/ The Urilift is a reasonable solution to the problem of public urination. It's a men's urinal that stays below ground during the day and rises at night (with the help of an attendant).
I live in San Francisco where the homeless population is depressingly large and the lack of public restrooms is a huge problem (especially where I live in the Mission District). The city decided to install these really expensive self-cleaning enclosed bathrooms that cost money to use. I've noticed that when used by the homeless population, it's more of an office for dirty dealings than a restroom. I think the Urilift needs to come to San Francisco and help mitigate some of the problems that are an unfortunate reality here.
For more on this and other products by Urilift International, visit their homepage: http://www.urilift.com/products.php