**6. Conclusions**

This study reports on a systematic assessment of 52 peer-reviewed articles using the term "urban greenway" or "urban greenways" in the title, abstract, or keywords, and covering seven research categories plus definitions. The review finds that there has been an uptick in urban greenway scholarship over the past decade; that urban greenway scholarship and definitions reflect a strong orientation towards human needs and concerns; that many urban greenways adaptively reuse already developed lands; and that the materiality of urban greenways ranges from naturalistic to highly constructed. In urban areas, "green" coupled with "ways" may signify a sustainability and livability agenda that goes beyond vegetation per se. The paper offers a definition of urban greenways and outlines an urban greenways typology that includes: freeway-to-greenway, rail-to-trail, waterfront, active travel corridor, and nature trail. As a subset of greenways writ large, urban greenways reflect an evolving form of landscape planning and design, and an opportunity for associated scholarship and practice.

**Author Contributions:** Conceptualization: T.S.E. Methodology T.S.E., O.S.H. Formal analysis: O.S.H., T.S.E. Investigation: O.S.H., T.S.E. Data curation: O.S.H. Writing-original draft preparation: O.S.H., T.S.E. Writing-review and editing: T.S.E., O.S.H. Visualization: O.S.H. Supervision: T.S.E. Project administration: O.S.H., T.S.E. All authors have read and agree to the published version of the manuscript.

**Funding:** This research received no external funding. However, much of the open access publishing fee was provided by the University of Massachusetts-Amherst.

**Acknowledgments:** We would like to thank Jack Ahern for providing constructive comments on the first author's University of Massachusetts-Amherst Commonwealth Honors College senior thesis, which undergirds this study. We also extend thanks to Maria Håkansson and Tigran Haas in the Department of Urban Planning and Environment at KTH Royal Institute of Technology in Stockholm, Sweden for supporting the corresponding author as a visiting scholar in fall 2019. Additionally, we thank The Rose Kennedy Greenway Conservancy for providing time for the first author to work on this article.

**Conflicts of Interest:** The authors declare no conflict of interest.
