Please take a look on https://wiki.openstreetmap.org/wiki/OSM_Inspector/Views/Routing to get information about the Openstreetmap Inspector Routing view.
The connectivity quality in the US is not the best as can be seen on e.g. https://tools.geofabrik.de/osmi/?view=routing&lon=-76.65727&lat=40.26253&zoom=9&baselayer=Geofabrik%20Standard&overlays=snap_points%2Cunconnected_open_ends_1
In the particular case I created the missing junction node between Tyrion Drive and Sunspear Drive.
