Locating & Interpreting: Graphs

A car accident has prompted the driver, Blanca Ortiz, to take action. She is deeply upset for the boy who had to cross the busy street to reach a playground. It was nobody's fault that the accident occurred–or was it? Upon doing research, the driver draws up the graph to show the increase in traffic on that street. She also learns that the local government turned down earlier proposals to put a stoplight at the playground. It's just about all the evidence she needs to make her case clear to the city council.