Quadkeys

This article explains how to estimate travel times using known speed vectors indexed by quadkeysPhoto by Dino Reichmuth on UnsplashHow long is your road trip going to last? If you are like me, you go to Google maps or Here maps and query the route directly. You will not only get the fastest or shortest paths, but you will also get estimates of your travel times. These services report the most common speeds according to the learned time patterns and live traffic information and do so for the typical vehicles on the…

This article explains how to create geofences with square partitionsThe picture above displays a hierarchical square discretization of continental Portugal using the algorithm described here. Image by the author made with the Folium package and OpenStreetMap imagery.A geofence is a virtual border delimiting an arbitrary geographic region. We use these constructs to classify whether an object lies inside the area of interest, like when we want to determine if a car has entered a specific parking lot. Geofences do not have…