With SEPTA Key’s long-anticipated arrival on the region’s buses, subways and trolleys finally here, some riders think it’s time for SEPTA to update another part of its fare system: transfers.

5th Square, an urbanist political action committee, has circulated a petition urging SEPTA to drop the $1 transfer fee riders pay when switching from one form of mass transit to another. With a modern fare card, SEPTA can now process a transfer automatically — no need to ask an employee for a paper…