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Incident somewhere East of Bassendean, so Midland line will be busses from Basso to Midland

"Attention passengers, this train will be terminating at Bayswater and replacement busses should be organised" Driver didn't inspire confidence with that one

"Change of plans again, we'll be going all the way through to Bassendean"

To be fair, weed out the Midland passengers to not crowd out Bayswater. Handy bus interchange and crossovers.