Planners in San Francisco have completed a public outreach process called Subway Vision. The goal is to create a framework for subway expansion in the city.

"San Francisco transportation planners will review over 2,500 maps drawn by city residents and transit riders to help create an expanded subway system in the city," according to an article by Ericka Cruz Guevarra.
The so-called Subway Vision initiative is a component of the Connect SF long-range transportation "vision" process, which coordinates planning for several projects and plans.
The Subway Vision process completed its crowdsourcing exercise on September 6, according to the website for the project. Cruz Guevarra reports in more detail on the outreach program, speaking with some of the planners who ran the program and some of the participants who provided information.
The Connect SF project also has a frequently-asked-questions page, to help parse out the scope of work for the overall visioning process.
Astute observers will recall that the Subway Vision process emerged from a 2015 ordinance championed by San Francisco Supervisor Scott Wiener in the hopes of building a subway system to rival New York's.
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