Well - here is an interesting proxy.Via blprnt,
... tweets containing the phrases 'just landed in...' or 'just arrived in...'. Locations from these tweets are located using MetaCarta's Location Finder API. The home location for the traveling users are scraped from their Twitter pages. The system then plots these voyages over time.Over the years you've heard me talk of the Anglosphere, non-Russia Europe and its auxiliaries in Asia constituting the true West. That mostly overlaps a Furfusonesque definition of the West.
This visualizes the concept very well methinks.