Cities face major challenges managing the proliferation of new transportation technologies and services competing for street space. Each new service brings with it new kinds of data and, often a new representation of the street itself. Making sense of what’s happening requires connecting data that crosses public-private boundaries department lines. SharedStreets is a non-profit initiative collaborating with public and private sector innovators on open source tools, data standards and data infrastructure that allow communities to rethink how they manage street-linked information, automating the connection between public GIS systems, privately managed data and OpenStreetMap. This talk will explore how cities and new transport services are using SharedStreets to collect and aggregate and share dynamic layers of information about the street, ranging from traffic speeds, driver behavior, to parking availability.