Vision Zero
Vision Zero is a multi-national traffic safety project that aims to achieve a system with no predestrian or bicyclist fatalities or serious injuries involving road traffic. The project encompasses engineering, education and enforcement, collectively referred to as the three "E's."
The City of San Diego Vision Zero site is an excellent place to start to get a better understanding of the goals, strategic plan, and initiatives. The 2015 Vision Zero Report from Circulate San Diego includes the corridors, impact stats, and links to relevant plans.