Every year, Los Angeles needs more than 4,000 affordable new homes to accommodate low-income residents, but builds only 1,000 -- and loses 3,000. One solution to keeping life affordable in L.A., and the many cities across America following the same trend, may be transportation. At a discussion co-presented by Metro and moderated by Curbed L.A. editor Adrian Glick Kudler, four panelists -urban planning policy analyst Joan Ling, developer Tony Salazar, L.A. City Councilman Mike Bonin, and Metro managing executive officer for countywide planning & development Calvin Hollis -- considered ways new transit projects can connect people to jobs and make city living less expensive.