The MTA is bracing for a possible Long Island Rail Road strike next week as five unions representing nearly half the workforce vote on whether to walk out. Meanwhile, the City Council has passed legislation requiring the city to track and report thousands of supportive housing units that remain vacant despite record demand in shelters. Also, Clifton Park resident Joseph Macken has gone viral after completing a 20-year project: a 50-by-30-foot scale model of New York City built from balsa wood and Styrofoam. Plus, in this week’s transportation segment, we break down what’s at stake in the LIRR contract talks and the state comptroller’s new audit of subway service.