**5. Conclusions**

While various definitions of the concept were identified in the previous chapter, green streets are most commonly described as an effective and affordable tool that treats stormwater with plants and soils pursuing multiple benefits for the better quality of life. Green streets embrace stormwater runoff as a resource to do more rather than treating it as harmful waste. Thus, green streets differ from conventional streets because they include stormwater treatment facilities and emphasize multiple benefits such as promotion of pedestrian safety and aesthetic qualities of the environment by incorporating larger (permeable) landscape areas and narrower roads. Types of stormwater treatment facilities vary according to the needs of specific locations and the available space in the right-of-way. Thus, green streets can be considered as a sustainable development approach, fulfilling a variety of environmental, social, and economic objectives so that cities may be more apt to implement green streets with a reduced concern for overconsuming resources. They also maintain all functions of conventional streets by forming the image of a city, connecting destinations, and improving the flow of water. This naturally leads to the study of urban livability at the street level. Green streets should be understood as an approach with multiple visions which include stormwater treatment, green infrastructure, and sustainable development strategies. Openness to the larger sense of what green street projects entail will enable planners and citizens to realize the potential benefits to surrounding communities and help in the planning and promotion of successful green street applications.

**Funding:** This research received no external funding.

**Acknowledgments:** I am grateful to my co-chairs of the dissertation committee, Patrick Miller and Dean Bork, for their extensive guidance and the expert panels from different municipalities who provided professional insight about green street implementation. I also thank UTA graduate research assistants Melissa Lemuz and Tricia Mikal for their assistance.

**Conflicts of Interest:** The author declares no conflict of interest.
