A recent article authored by Jason King and Shawn Kummer appeared in the ASLA Urban Design Professional Practice Network - discussing some recent work on green street projects and their role in shaping urban form.
"Green streets, like many other green infrastructure strategies, offer the same or better functional contributions as gray streets, as well as a range of added benefits. For example, green storm water design contributes to communities well beyond treating 90% of roadway pollutants, replenishing groundwater, sequestering carbon, and improving air quality. More expansive community benefits include improved neighborhood aesthetics, green connections, pedestrian and bicycle safety, traffic calming, and building community consensus around what is a good infrastructure investment. This transfer of investment from single-purpose gray infrastructure such as cartridge storm filters to multi-purpose green infrastructure investment allows for greater benefit to communities—both financially and environmentally—making every dollar invested pay back abundantly. The economics are simple: green storm water infrastructure provides more green in our communities, costs less, works better, is easily scalable, and is more resilient and adaptable than standard pipe systems. While the techniques to improve the control and treatment of storm water runoff are still evolving, green stormwater designs, like many other green infrastructure techniques, are proving to be flexible, offering solutions at a variety of scales rather than just at the end of the pipe. "Read the entire article here.