The four stations where the directions change are the square made up of Park Street, State Street, DTX, and Government Center (or Haymarket since Gov Center is

The four stations where the directions change are the square made up of Park Street, State Street, DTX, and Government Center (or Haymarket since Gov Center is down? Not sure, haven't been to Haymarket in at least two years). Directionality (for new folks) or terminus (for more seasoned riders) are infinitely better than Inbound/Outbound.