The District is in the last stages of developing a handbook for moving tens of thousands of people in and out of the Washington Nationals new ballpark on game days.

The handbook “will define exactly how everything is going to be done on game days,” one planner said, including traffic and pedestrian movement, police presence, ambulance staging and fan parking. It will put in place specific mechanisms for movement, from when to restrict on-street parking to which roads to close for pedestrians.