Aural Timetables: checking the network's pulse

The previous post introduced the concept of converting timetable data into sound. The technique was suggested as a means of gauging co-ordination between intersecting routes.

Now I've got some real times. I try to apply this stethoscope-like tool to check the pulse of connectivity at selected suburban railway stations in Melbourne.

Hear the difference between unharmonised and harmonised service frequencies at these interchange points. The tunefulness of the latter demonstrates that not only does good service planning produce good connectivity, but also good sounds as well!