Harold is the busiest interlocking on the Long Island Railroad. It also directs Amtrak trains to Boston. All traffic to Sunnyside Yard (Amtrak and New Jersey Transit) passes through Harold.
Description: Harold is the busiest interlocking on the Long Island Railroad. It also directs Amtrak trains to Boston. All traffic to Sunnyside Yard (Amtrak and New Jersey Transit) passes through Harold.
