sentences:  Although Canada does not have a federal-level network of expressways, all provinces east of Ontario are inter-linked by provincial-level freeways, such as Ontario's 400-series highways network, Quebec's Autoroute network, New Brunswick's upgrades to its portions of the Trans-Canada Highway, and Nova Scotia's 100-series highways.These expressways are the provincial equivalents to the United States' Interstate Highway system.The only gap in the Canadian inter-provincial expressway network (one can travel from Windsor to Halifax using expressways, but this involves crossing into the United States to use their Interstate Highway network, and back into Canada) between Windsor, Ontario, and Halifax, Nova Scotia, is along Route 185/Autoroute 85, which is being twinned and upgraded to become a fully divided Autoroute.