The evidence on land use and travel shows that employment access has a larger association with travel than population density. In a policy world that is focused on links between residential density and travel, the more important path is possibly (likely) from employment density to travel. SB 375 is at heart an attempt to change urban form in ways that will meet specified greenhouse gas reduction targets. This requires clear evidence that links from urban spatial structure to travel behavior. In this research, we will analyze the links between employment sub-centering and the spatial distribution of jobs in Los Angeles and travel behavior outcomes.