Original sentence: It has a single standard gauge track that can accommodate all freight cars currently in service in North America; for this reason, the rail ferries were also retired in 1994 when the new tunnel opened.It measures  from portal to portal with a bore diameter of.It was anticipated that import/export traffic on CN's corridor would increase dramatically as a result.Signs bearing his name were installed over each tunnel portal.The new tunnel was dedicated on May 5, 1995.The tunnel opened in late 1994 whereupon trains stopped using the adjacent original tunnel, whose bore was sealed.Unlike the first tunnel, which was hand dug from both ends, the new tunnel was constructed using a tunnel boring machine named Excalibore.[The] tunnel will give CN the efficiencies it needs to become a strong competitive force in North American transportation
Edited sentence: "[the] tunnel will give CN the efficiencies it needs to become a strong competitive force in North American transportation".A sign now hangs over each tunnel portal with this name.It could accommodate all freight cars currently in service in North America, thus the rail ferries were also retired in 1994 at the time of the tunnel's completion and opening for service.It was only logical that import/export traffic on CN's corridor would increase dramatically.The new tunnel was dedicated on May 5, 1995, and measures  from portal to portal with a bore diameter of  with a single standard gauge track.The tunnel opened later in 1994 whereupon freight and passenger trains stopped using the adjacent original tunnel, whose bore was sealed.Unlike the first tunnel, which was hand dug from both ends, an earth boring machine called the Excalibore made by the Lovat Tunnel Equipment Inc.was used