First: Sign up for the mailing list. We won’t spam you, but we’ll keep you up to date on major events relating to the greenway once in a while.
Second: Find out who represents you, at the Municipal, County, and State Level: http://www.votesmart.org, then contact your commissioners and representatives and tell them to support adding parks and safe corridors for humans in Miami Dade County.
Third: Join Florida’s Rails to Trails Conservancy. They are dedicated to preserving the public’s access to railway corridors, and a worthy organization to support.