Cross-departmental collaboration is one of the necessary elements for effective Vision Zero efforts. Traffic safety is not the purview of any single department, and Vision Zero projects often demand buy-in and leadership from multiple agencies within a city structure, including Transportation, Public Works, Police, and Public Health, among others. While it’s not glamorous or even visible to most of the public, one of the most important things a city can do is make sure its internal processes allow for – and even incentivize – strong cooperation between agencies to advance Vision Zero.