The Routes feature enables you to explore activity between two specific points of interest to understand route choices people are making.
Move the origin and destination anchors to your desired points. Here you can see the most direct route between those two places in blue, and compare it to the most popular route, in red. A divergence between these two lines suggests there may be obstacles to completing this trip directly – physical barriers such as hills, or that people are choosing longer alternative routes in order to use better infrastructure.