Driving routes from each fleet vehicle to a breakdown
Prototype web map for fleet breakdowns: type the breakdown address and it draws the driving route from each fleet vehicle to it. It is a single Google Maps page (Places autocomplete plus Directions) with hardcoded vehicle and staff positions, inside an empty Shiny app.
Put a Google Maps API key in www/index.html line 7, from a Google Cloud project with billing on and the Maps JavaScript API, Places API and Directions API enabled, then open www/index.html in a browser and type a breakdown address; you compare the routes yourself. The Shiny files (server.R, ui.R) hold no logic: server.R is an empty server and ui.R is commented out.