Complex sentence: All surface routes which pass the McCowan station also stop at Scarborough Centre station, located almost directly across McCowan Road, effectively leaving McCowan as a dead-end in the system.
Split into simpler sentences: All surface routes which pass the McCowan station are also available at the Scarborough Centre station, located almost directly across McCowan Road. This effectively leaves the McCowan station as a dead-end in the system.