"without the issue being open for community input"
Are you sure this is an accurate description? Many neighborhood groups will ignore opportunities for input, sometimes for years, so they can later block the project and retroactively claim they "weren't given a voice".
For example, when San Francisco put bus-only lanes on Mission Street a few months ago, neighborhood activists said:
"“SFMTA’s red carpet bombing of the Mission was a surprise attack and is wholly unwelcome,” Raeleen Valle-Brenes, an activist from the Cultural Action Network told the board."
Mike Schiraldi describes what really happened:
"Actually, the MTA took out multiple ads in 8 different local papers, notified 31 neighborhood and merchant groups, 8 schools, neighborhood senior centers, posted on Twitter and Facebook, rode the 14-Mission Bus to distribute 1500 postcards, handed out 1700 flyers, and mailed out more than 25,000 more postcards.
They also had these community meetings:
Public Open House #1 (2/18/15)
Mission Merchants Association (2/18/15)
Mission Bernal Merchants (3/9/15 & 3/27/15)
Calle 24 (3/10/15)
Mission High School Principal (3/12/15)
14 Mission Rider Open House @ 24th BART Plaza (3/25/15)
MEDA (4/16/15)
Public Open House #2 (4/21/15)
Public Open House #3 (5/30/15)
Public Hearing (10/16/15)
SFMTA Board of Directors meeting, with public comment (12/1/15)
Prior to all that, the Chronicle wrote about it in 2014:
http://www.sfchronicle.com/bayarea/article/Muni-overhaul-spe...
And before that, they wrote about it in 2012:
http://www.sfgate.com/bayarea/article/S-F-transit-agency-s-p...
And that last article says they'd been trying to get this done since 2008."
(source: https://www.reddit.com/r/sanfrancisco/comments/4i5n66/critic...)