Open data/geocoding tools
We have developed an R library (googleway development, R CRAN release) which provides a set of convenience functions to access the Google Maps API from the R programming environment. Googleway provides access to Google Maps APIs through specified functions, and the ability to plot a Google Map overlayed with markers, circles, shapes (polygons), lines (polylines) and heatmaps. You can also overlay traffic information, transit and cycling routes.