Instruct: Given a question, retrieve relevant documents that can help answer the question.
Query: What's the longest highway in the world?
The Pan-American Highway is a network of roads stretching across the American continents and measuring about in total length. Except for a rainforest break of approximately , called the Darién Gap, the roads link almost all of the Pacific coastal countries of the Americas in a connected highway system. According to "Guinness World Records", the Pan-American Highway is the world's longest "motorable road". However, because of the Darién Gap, it is not possible to cross between South America and Central America with conventional highway vehicles. Without an all-terrain vehicle, it is necessary to circumnavigate this terrestrial stretch by sea.
Highway 3 is a major provincial paved undivided highway in the Canadian province of Saskatchewan. It runs from the Alberta border, where it continues west as Alberta Highway 45, to the Manitoba border, and then continues east as Highway 77. Highway 3 is about 615 km (382 mi.) long. The CanAm Highway comprises Saskatchewan Highways 35, 39, 6, 2, as well as 2. of Saskatchewan Highway 3 contribute to the CanAm Highway between Melfort and Prince Albert.
Provincial downloading separated Yonge Street from Highway 11 during the 1990s. As a result, Highway 11 does not start until Crown Hill just outside Barrie, several kilometres north of where the name "Yonge Street" ends. The Guinness Book of World Records no longer lists Yonge Street as the longest street in the world and has not chosen a replacement street, but cites the Pan-American Highway as the world's longest "motorable road".
China's highway network is the second most extensive in the world, with a total length of about . China's expressway network is the longest Expressway system in the world, and it is quickly expanding, stretching some at the end of 2011. In 2008 alone, expressways were added to the network.Some countries incorporate bus lanes onto highways.
In South Korea, in February 1995 a bus lane (essentially an HOV-9) was established between the northern terminus and Sintanjin for important holidays and on 1 July 2008 bus lane enforcement between Seoul and Osan (Sintanjin on weekends) became daily between 6 a.m. and 10 p.m. On 1 October this was adjusted to 7 a.m. to 9 p.m. weekdays, and 9 a.m. to 9 p.m. weekends.
Highway 180 connects at the Mexico–United States border with U.S. Route 83, one of the longest north-south U.S. Highways in the United States at . Federal Highway 180 also connects to both Interstate 69E and U.S. Route 77 at the border. U.S. Route 83 (along with both Interstate 69E and U.S. Route 77) starts the northern terminus of Highway 180 in Brownsville, Texas, at the Veterans International Bridge on the Mexican border. After crossing the bridge into the United States, Federal Highway 180 continues as U.S. Route 83 in Brownsville which then runs northward to the U.S. highway's northern terminus, north of Westhope, North Dakota, at the Canada–United States border. From here, the highway continues further as Manitoba Highway 83 until it ends at Swan River, Manitoba. In total, the three highways total in length.
CanAm Highway is an international highway that connects Mexico to Canada through the United States. It travels along U.S. Route 85 (US 85) and Interstate 25 (I-25), passing through six U.S. states (Texas, New Mexico, Colorado, Wyoming, South Dakota, North Dakota) and the Canadian province of Saskatchewan. The CanAm highway in Canada comprises Saskatchewan Highway 35 (SK 35), SK 39, SK 6, SK 3, and SK 2. The route continues south in Mexico as Mexican Federal Highway 45 (Fed. 45), and north in Canada as SK 102 but are not labeled the CanAm highway.
The Interstate Highways in Michigan are the segments of the national Dwight D. Eisenhower System of Interstate and Defense Highways that are owned and maintained by the U.S. state of Michigan, totaling about . The longest of these, Interstate 75 (I-75), is also the longest highway of any kind in the state. On a national level, the standards and numbering for the system are handled by the Federal Highway Administration (FHWA) and the American Association of State Highway and Transportation Officials (AASHTO), while the highways in Michigan are maintained by the Michigan Department of Transportation (MDOT) and the Mackinac Bridge Authority (MBA). The Interstates in Michigan have their origins in World War II-era expressways built in the Detroit area. After the system was created in 1956, the state highway department completed its first border-to-border Interstate in 1960. The last highway was completed in 1992, giving Michigan a total of 13 Interstate freeways. The original allotment of mileage to Michigan which would receive federal funding was expanded in 1968, and the United States Congress designated an additional highway in the 1990s that has not yet been built.
There are 70 primary Interstate Highways in the Interstate Highway System, a network of controlled-access freeways in the United States. They are assigned one- or two-digit route numbers, whereas their associated "auxiliary" Interstate Highways receive three-digit route numbers. Typically, odd-numbered Interstates run south-north, with lower numbers in the west and higher numbers in the east; even-numbered Interstates run west-east, with lower numbers in the south and higher numbers in the north. Highways whose route numbers are divisible by "5" usually represent major coast-to-coast or border-to-border routes (ex. I-10 travels from Santa Monica, California, to Jacksonville, Florida, traveling from the Pacific to Atlantic oceans). Additionally, auxiliary highways have their numbering system where a different number prefixes the number of its parent highway.
U.S. Route 61 (US 61) is the official designation for a major United States highway which extends between New Orleans, Louisiana and the city of Wyoming, Minnesota. The highway generally follows the course of the Mississippi River, and is designated the Great River Road for much of its route. As of 2004, the highway's northern terminus in Wyoming, Minnesota, is at an intersection with Interstate 35 (I-35). Until 1991, the highway extended north on what is now Minnesota State Highway 61 (MN 61) through Duluth and across the Canada–U.S. border, near Grand Portage. Its southern terminus in New Orleans, Louisiana, is at an intersection with Tulane Avenue at South Broad Street. The highway is often called the Blues Highway because it connects Saint Paul, Minnesota; St. Louis, Missouri; Memphis, Tennessee; the Mississippi Delta, and New Orleans.
This trail offers a view of the border area Quebec-Maine which bounds the south of Zec Jaro. Lying about 8891 km, the Canada-U.S. border proves the longest on the planet. The border line is managed by a dedicated team appointed by the two governments to maintain visibility and accessibility are constant. Its layout from the Atlantic ocean to Pacific is marked by a series of numbered terminals entrenched in the soil. These terminals are obvious marks on the line between the two countries. Segment boundary between the province of Quebec and U.S. is 813 km long. The portion defining Zec Jaro south is about 24 km.
The North-South Road was the longest terrestrial road in J. R. R. Tolkien's fictional world of Middle-earth during its Third Age: about 1275 miles (2050 km). (The longest-ever terrestrial road in Middle-earth had been the full Great East Road in the First Age, but it was much reduced in length when its Beleriand sections were forever drowned in the War of Wrath.) Originally known as the Royal Road, it ran from the realm of Arnor in the north to the capital of Gondor in the south. In the early Third Age, the highway was the main overland linkage between Gondor and Arnor. However, as the Third Age progressed, both kingdoms declined, and the road became neglected, especially its central stretches. After the end of the War of the Ring, there were plans by King Elessar to restore the ancient royal highway.
U.S. Route 101 (US 101) in the state of California is one of the last remaining and longest U.S. Routes still active in the state, and the longest highway of any kind in California. US 101 was also one of the original national routes established in 1926. Significant portions of US 101 between the Los Angeles area and the San Francisco Bay Area follow El Camino Real, the historic road connecting the former Alta California's 21 missions.
Originally numbered as Highway 1, Highway 2 is the oldest major highway in Alberta and the first to stretch north into the Peace Country. It was historically known as the Calgary and Edmonton Trail, Sunshine Trail, and the Blue Trail. Major changes include the construction of a divided freeway between Calgary and Edmonton in the 1960s, realignment along Deerfoot Trail in the 1980s, and twinning south of Calgary in the 1990s. A Highway 43 realignment in 1998 shortened Highway 2 by nearly to its current northern terminus in Grande Prairie; it previously extended west to British Columbia Highway 2 at the border. Several projects including median widening and interchange upgrades have been undertaken in the 2010s to increase the safety of the highway's busier sections, with further improvements either under construction or awaiting funding. Bypasses of Fort Macleod, Claresholm, and Nanton are planned as part of Alberta's effort to make its portion of the CANAMEX Corridor free-flowing from border to border.
Highway 2 is a core route in the National Highway System of Canada. The speed limit along most parts of the highway between Fort Macleod and Morinville is and in urban areas, such as through Claresholm, Nanton, Calgary and Edmonton, it ranges from to . During the winter, accidents are common on the stretch of the highway between Calgary and Edmonton as the weather can change rapidly and drivers underestimate the conditions, overwhelming emergency services attempting to respond. As the main north-south access in Alberta, Highway 2 is the preferred path of the CANAMEX Corridor. Between Fort Macleod and Edmonton, Highway 2 maintains no fewer than four lanes of traffic and is largely a freeway between Okotoks and Edmonton, with improvements underway to eliminate the at-grade crossings that remain.
Interstate 90 (I-90) is the longest primary Interstate Highway in Washington, which connects Seattle to Spokane and the Idaho border, measuring , while I-82, connecting the Oregon border city of Umatilla to Elensburg via Yakima, is the shortest at . The longest auxiliary Interstate Highway in Washington is I-405, a bypass of Seattle through the Eastside, at , and the shortest is I-705, a spur into downtown Tacoma, at . One route, I-605, has been proposed over the years to form another Eastside bypass, however there are no plans to construct this fifth auxiliary route.
After passage of the Federal Aid Highway Act of 1956, which formed the Interstate Highway System, the American Association of State Highway Officials had approved I-5 and I-90 across Washington on August 17, 1957. I-82 was approved on October 17, 1957, two months after I-5 and I-90, as part of a addition to the Interstate Highway System.
As of August 2016, the U.S. portion of the highway is paved from the Taylor Highway junction almost as far as Chicken, Alaska, and again for the final 10 kilometers from the Eagle turnoff to the Canada–United States border. Most of the Canadian portion is unpaved. The paved Canadian sections are from kilometer 0 (at Dawson) to km 9 (mile 0 to mi 5.4), km 74 to 76 (mi 46.0 to 47.2), km 79 to 82 (mi 49.1 to 51.0), km 83 to 94 (mi 51.6 to 58.4) and km 99 to 104 (mi 61.5 to 64.6) at the Canada–US border.
The CanAm Highway follows US 85 from El Paso, Texas, for to the border between the United States and Canada. It continues north on SK 35 to Weyburn, Saskatchewan, where it switches to SK 39. Then it runs north to Corinne where it continues on SK 6 until Melfort. There it changes highways again, this time to follow SK 3. That carries the CanAm Highway to Prince Albert where it continues on SK 2. The northern end is at La Ronge. The portion of the highway within Canada is ; the total length is .
Highway 2 has a wide range of traffic levels along its length. At the south end, the highway is a lightly travelled two lane road from the United States border to Fort Macleod. It then doubles to four lanes and volume progressively increases until De Winton north of Okotoks, but remains relatively light. Within Calgary, volume climbs exponentially on Deerfoot Trail through the southern suburbs of the city reaching nearly 170,000 vehicles per day at Memorial Drive near downtown, making that stretch of Highway 2 the busiest roadway in western Canada. Volume swiftly drops north of Beddington Trail in Calgary, but remains moderate on the Queen Elizabeth II Highway until Edmonton where it again increases to nearly 95,000 vehicles per day in the vicinity of Ellerslie Road. Whitemud Drive, Anthony Henday Drive, Yellowhead Trail, and St. Albert Trail are all busy expressways carrying large volumes of local traffic, especially at peak hours. North of St. Albert the drop in traffic is brisk, increasingly so after Morinville where the highway is no longer divided. Volume remains very light through most of the Peace Country before briefly exceeding 20,000 vehicles per day near the northern terminus in Grande Prairie.
State Route 11 (SR 11) is a state highway in the U.S. state of Georgia, traveling through portions of Echols, Lanier, Berrien, Irwin, Ben Hill, Wilcox, Pulaski, Houston, Peach, Bibb, Jones, Jasper, Newton, Walton, Barrow, Jackson, Hall, White, Lumpkin, and Union counties. It travels the entire length of the state from south to north, connecting the Florida state line with the North Carolina state line, roughly bisecting the state into two equal parts. It travels through Warner Robins, Macon, and Gainesville It is the longest route in the state. The portion from the southeastern city limits of Monticello to the Jasper–Newton county line is included in the Monticello Crossroads Scenic Byway.
The U.S. Highways in Utah are painted by the Utah Department of Transportation (UDOT). The United States Numbered Highway System is a nationwide system with only a small portion of its routes entering Utah. Originally, the State Road Commission of Utah, created on March 23, 1909 was responsible for maintenance, but these duties were rolled into the new UDOT in 1975. There are of U.S. Highways in the state. The longest is U.S. Route 89 at and the shortest is U.S. Route 89A at . Five former U.S. Highways exist in the state of Utah, all of which have been replaced by current interstate and U.S. Highways, with the most recent change being U.S. Route 666 redesignated as U.S. Route 491 in 2003.
I-80 is the Interstate Highway that most closely approximates the route of the historic Lincoln Highway, the first road across the United States. The highway roughly traces other historically significant travel routes in the Western United States: the Oregon Trail across Wyoming and Nebraska, the California Trail across most of Nevada and California, the first transcontinental airmail route, and except in the Great Salt Lake area, the entire route of the First Transcontinental Railroad. From near Chicago east to near Youngstown, Ohio, I-80 is a toll road, containing the majority of both the Indiana Toll Road and the Ohio Turnpike. I-80 runs concurrently with I-90 from near Portage, Indiana, to Elyria, Ohio. In Pennsylvania, I-80 is known as the Keystone Shortway, a non-tolled freeway that crosses rural north-central portions of the state on the way to New Jersey and New York City.
I-75 is the longest Interstate Highway within Georgia. It enters near Valdosta, and it continues northward through the towns of Tifton and Cordele until it reaches the Macon area, where it intersects with I-16 eastbound towards Savannah. For northbound traffic wishing to avoid potential congestion in Macon, I-475 provides a relatively straight bypass west of that city and I-75's route.
Interstate 70 was dedicated on December 5, 1970, at the Ghost Rocks view area inside the swell, even though it would take another 20 years to fully complete the freeway. At the ceremony the mayors of cities recently made neighbors, including Grand Junction, Colorado, introduced themselves. Then Governor Calvin L. Rampton noted that I-70 was the longest road the U.S. had built over a completely new route since the Alaska Highway, during World War II. It was also noted this was the longest piece of the Interstate Highway System to open at a given time.
Initially only two lanes, now the eastbound lanes, through the swell were constructed. The official highway map for Utah noted the new freeway, but qualified its existence with the words "two lanes open". The first portions of I-70 to be constructed to Interstate Highway standards were along the non-disputed portion of the route east of Green River.
Yonge Street was formerly a part of Highway 11, which led to claims that Yonge Street was the longest street in the world. Running (mostly) concurrent with Yonge as far north as Barrie, then continuing beyond through central and northern Ontario to the Ontario-Minnesota border at Rainy River, the highway was over long. But Yonge Street could only be called the longest street in the world if were fully synonymous with Highway 11, which has never been the case.
The Manchac Swamp Bridge is a twin concrete trestle bridge in the U.S. state of Louisiana. With a total length of it is one of the longest bridges in the world over water. It is the longest bridge on the interstate system. Some claim it is the longest toll-free road bridge in the world. The bridge carries Interstate 55 and U.S. Route 51 over the Manchac Swamp in Louisiana, and represents one-third of the highway's approximately 66 miles in Louisiana. Opening in 1979, its piles were driven beneath the swamp and with the cost of the span being $7 million per mile to complete.
RN40 is the longest route in Argentina and one of the longest in the world alongside such routes as U.S. Route 66, Canada's Trans-Canada Highway, and Australia's Stuart Highway, more than long. At its traditional southern end near the city of Río Gallegos, it starts at sea level. It then crosses 20 national parks, 18 major rivers, and 27 passes in the Andes. Route 40's highest point is in Abra del Acay in Salta Province.