The goal of Vision Zero is nothing short of lasting, institutionalized, systems-level change. And it is possible, as communities across the nation and world are showing. Although Vision Zero will not develop the same in every community, there are core principles that are essential to a traffic safety approach being a Vision Zero commitment. This case study aims to define the core principles and the corresponding, high-level policies and practices needed to create and sustain a meaningful Vision Zero program. Download a PDF here.