The Detroit River International Crossing is a new bridge project expected to be completed in approximately 2013 ; it will directly connect Highway 401 in Canada to Interstate 75 in the U. S.

* 1999 – An 87-automobile pile-up happens on Highway 401 freeway just East of Windsor, Ontario, Canada after an unusually thick fog from Lake St. Clair.

Ontario Highway 401, the busiest highway in North America

* Busiest highway: Highway 401 in Ontario, Canada, has volumes surpassing an average of 500, 000 vehicles per day in some sections of Toronto.

Its southern terminus is at Interstate 40 in Dandridge, Tennessee ; its northern terminus is on Wellesley Island ( near Fishers Landing, New York ) at the Canadian border, where the Thousand Islands Bridge connects it to Highway 401, the main Ontario freeway connecting Detroit via Toronto to Montreal.

The city's boundaries now encompass large rural areas north of Highway 401 and east of the Cataraqui River.

Highway 401, which runs in the north part of the city, is the principal access route into Kingston.

From the south, Interstate 81 connects with Highway 401 east of Kingston.

In February 2011, various groups have proposed naming the Detroit River International Crossing bridge, a proposed bridge that will connect Detroit and Windsor by linking Highway 401 in Ontario with Interstate 75 and Interstate 94 in Michigan, in honor of Gordie Howe.

* Port Darlington, Ontario, a rural community in Clarington on Highway 401

The Thousand Islands Bridge connects New York State and Ontario by traversing Wellesley Island at the northernmost point of Interstate 81 in Jefferson County and meets Highway 137, which leads to Highway 401.

Prescott is on the mainline of the Canadian National Railway connecting Toronto to Montreal, and is near the junction of the east-west Highway 401 and Highway 416 north to Ottawa.

Highway 401, the busiest highway in North America

Cornwall is Ontario's easternmost city, located on the Saint Lawrence River, in the Quebec City – Windsor Corridor along Ontario Highway 401, and is the urban centre for surrounding communities, including Long Sault and Ingleside to the west, Mohawk Territory of Akwesasne to the south, St. Andrew's and Avonmore to the north, and Glen Walter, Martintown, Williamstown, and Lancaster to the east.

Highway 401 runs through Brockville, with exits at Leeds & Grenville County Road 29 and North Augusta Road.

Chatham-Kent is situated just off Highway 401, connecting Montreal, Toronto, Kitchener-Waterloo, London, and Windsor, Ontario ; and Detroit, Michigan via the Ambassador Bridge.

A major redesign of the U. S. plaza completed in July 2009 provides direct access to Interstate 96 and Interstate 75 on the American side and Highway 3 ( and indirectly with Highway 401 ) on the Canadian side.

Michigan and Canadian authorities continued to support the DRIC proposal, as it would directly connect the Canadian Highway 401 with Interstate 75 and Interstate 96 in Michigan, bypassing Windsor's surface streets and reducing congestion.

Many residents of the various towns in Essex County ( as well as other nearby counties ) are opposed to companies building wind turbines in Lake Erie and Lake St. Clair, as well as in farmers ' fields and along Ontario Highway 401.

Ontario Highway 401 | Highway 401 in Ontario, which passes through Toronto, suffers chronic traffic congestion despite its immense width ( up to 18 lanes ), as its average speed varies between 31km / h and 52km / h in 2008.

Victoria also serves as the western terminus ( Mile Zero ) for Canada's Trans-Canada Highway, the longest national highway in the world.

Later, a highway was built through Kenora in 1932, becoming part of Canada's first coast-to-coast highway in 1943, and then part of the Trans-Canada Highway, placing the community on both of Canada's major transcontinental transportation routes.

* Canada's Yellowhead Highway is designated as Highway 16.

In 1979, with the completion of the Dempster Highway, Inuvik became connected to Canada's highway system, and simultaneously the most northerly town to which one could drive in the summer months — although an ice road through the Mackenzie River delta connects the town to Tuktoyaktuk and Aklavik, on the coast of the Arctic Ocean, in the winter.

Located at Kilometre 1, 934 ( historical mile 1, 202 ) of the Alaska Highway, close to the Alaska-Yukon border, it is Canada's westernmost community.

Gananoque lies directly on three of Canada's busiest transportation routes: the four-lane Highway 401, the double-track Canadian National Railway main line, and the St. Lawrence Seaway.

Canada's length of the Pan-American Highway is not officially defined beyond the end of the Alaska Highway.

Work also began on Canada's first interchange at Highway 10.

The 1000 Islands Parkway in Ontario was originally four lanes and part of Ontario Highway 401, Canada's busiest highway, before 401 traffic was bypassed inland on completion of that freeway in 1968.

A Collection Storage Facility on Highway 50, Gatineau, Quebec, to house the preservation and newspaper collections, will feature a high-density shelving system with a suitable environment to better protect Canada's published heritage.

Until the opening of Canada's Wonderland, Concord had a total of one interchange at Highway 7, it had two until the early-1990s when a partial interchange at Langstaff was opened.

A right-of-way was purchased along the Middle Road and construction began to convert the existing sections to a divided highway, as well as on Canada's first interchange at Highway 10.

It is designated a core route in Canada's National Highway System and forms the Yellowhead branch of the Trans-Canada Highway.

Following the completion of the St. Lawrence Seaway, the construction of the United States's Interstate Highway system, Canada's Queen Elizabeth Highway, and the increase of commercial air travel, the Black Rock Rail Yard lost its passenger service and later most of its commercial freight service.

Interstate H-1 ( abbreviated H-1 ) is the busiest Interstate Highway in Hawaii, United States, located on the island of O ‘ ahu.

Highway 99 and 196th ST SW, one of the busiest intersections in Lynnwood.

Leased to a private consortium in 1999, Highway 407 was formerly planned as a 400-series freeway to bypass the Toronto segment of Highway 401, currently the busiest highway in North America.

Highway 401 in Toronto, the longest, widest and busiest 400-Series highway.

The section of Highway 401 which traverses North York is the busiest section of freeway in North America, exceeding 400, 000 vehicles per day.

With nearly 160, 000 daily crossings, the Champlain Bridge is the busiest bridge in Canada ( the Hogg's Hollow bridge system in Toronto is the busiest multi-structure bridge in North America, with four separate bridges averaging a combined 400, 000 + vehicles a day through Highway 401 ).

It is a part of the National Highway Network and is one of Tasmania's busiest highways.

Highway 427 is the second busiest freeway in Canada with an average of 300, 000 vehicles that use it between the QEW and Highway 401 per day.

The original western Sydney Bypass was Ring Road 5, whose busiest section ( Pennant Hills Road and Woodville Rd ) is between Pacific Highway and Hume Highway with Parramatta in between.

The busiest crossing is at the small town of Rakaia, 20 kilometres from the river mouth, where State Highway 1 and the South Island Main Trunk Railway cross the river using separate bridges.

The Western Highway is the second busiest national highway in Australia, in terms of freight movements, with over five million tonnes annually.

The N1 then heads towards Pretoria along the Ben Schoeman Highway ; this section carries 300, 000 vehicles per day and is purported to be the busiest stretch of road in South Africa.

The Gardens Corner contains one of Dunedin's main retail areas, and also one of its busiest road intersections-here the Northern Motorway ( State Highway 1 ( New Zealand ) joins Dunedin's one-way street system.

The Tri-State Tollway is a U. S. toll road maintained by the Illinois State Toll Highway Authority ( ISTHA ) in northeastern Illinois which is considered one of the most heavily traveled highways in the country ( according to the IBTTA, the tollway is the nation's 4th busiest toll road ).

Reconstruction work began in 1985, and the busiest sections of the Military Highway, mostly a local thoroughfare, were modernized.

The highway serves little more than connectivity between local communities, and is busiest between the towns of Donald and Charlton ( with exception to the section that it shares with the Sunraysia Highway.