Highway 4 is the longest east–west main vehicle route on Vancouver Island, British Columbia, Canada, with a total length of 162 km (101 mi). It is known locally as the Alberni Highway to the east of Port Alberni and the Pacific Rim Highway to the west. The original highway from Parksville to Alberni and Port Alberni was completed in 1942 and was originally designated as Highway 1A. It was re-designated as Highway 4 in 1953, and was extended in 1961 to the district of Tofino, on the west coast of the Island. From Wikipedia