The concept of using rain gardens and bioswales seems in so many ways simple, yet why haven't there been more of this used in best practices management with stormwater management. Bioretention areas could be used in places where there is a parallel parking space - changes to a small garden or bed that retains stormwater runoff containing pollutants, sediment, debris and other harmful chemicals that make their way to local rivers, creeks and streams.
I make a serious effort to push these devices and methods in my area. However, as it is all known, if it doesn't benefit the developer then it can often be a wasted breath. Until it's mandatory I'm still going to pursue proper environmental methods in containing runoff. In a recent story on NBC, Chicago has made strong efforts toward developing rain gardens on roofs and become active within its streets and roadways to contain runoff.