I’ve recently deployed a flexdashboard on shinyapps.io that allows a user to compare the EMS call counts and dispatch/response times between boroughs of NYC. You can check out the application here. EMS Flexdashboard Screencap The data used by the dashboard is read directly from the NYC Open data API and it covers each call for all 5 boroughs from 2013-2017 inclusive. The data contains 7.2M individual observations (emergency calls into the system) with a variety of features including call type, severity level, borough, and zip code.