This week I'm on solo talking about the NTSB and Helmets, walkability and the economic ladder, and affordable housing's impact on bond ratings and health care. News NTSB gaga over helmets - Streetsblog NYC Children in walkable communities have leg up - UVA Today Housing's effects on health care costs - Bloomberg Odds and Ends Housing and bond ratings - Bloomberg Seattle has less car ownership - Seattle Times Story of the Week Apple's $2.5B housing push - Curbed SF Augsburg mobility flat rate - Intelligent Transport Democrats blind spot on cars - Huffington Post Housing pushback - Willamette Week Providence shows way on environmental justice plans - Grist