<P> By the end of 1952 , three individual highways were numbered `` Highway 401 '' : the partially completed Toronto Bypass between Weston Road and Highway 11 ( Yonge Street ) ; Highway 2A between West Hill and Newcastle ; and the Scenic Highway between Gananoque and Brockville , now known as the Thousand Islands Parkway . These three sections of highway were 11.8 , 54.7 and 41.2 km , ( 7.3 , 34.0 and 25.6 mi ) , respectively . In 1964 , the route became fully navigable from Windsor to the Ontario -- Quebec border . In 1965 it was given a second designation , the Macdonald -- Cartier Freeway , in honour of two Fathers of Confederation . At the end of 1968 , the Gananoque -- Brockville section was bypassed and the final intersection grade - separated near Kingston , making Highway 401 a freeway for its entire 817.9 - km length . On August 24 , 2007 , the portion of the highway between Glen Miller Road in Trenton and the Don Valley Parkway / Highway 404 Junction in Toronto was designated the Highway of Heroes , as the road is travelled by funeral convoys for fallen Canadian Forces personnel from CFB Trenton to the coroner 's office in Toronto . On September 27 , 2013 , the Highway of Heroes designation was extended west to Keele Street in Toronto , to coincide with the move of the coroner 's office to the new Forensic Services and Coroner 's Complex at the Humber River Hospital . </P>
where does the highway of heroes start and end
between Glen Miller Road in Trenton and the Don Valley Parkway / Highway 404 Junction in Toronto