Ring III
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Kehä III (''"ring three"'', ''National road 50''; or fi, Kehä III or ; or ) is an important
highway A highway is any public or private road or other public way on land. It is used for major roads, but also includes other public roads and public tracks. In some areas of the United States, it is used as an equivalent term to controlled-access ...
in
Southern Finland Southern Finland ( fi, Etelä-Suomen lääni, sv, Södra Finlands län) was a province of Finland from 1997 to 2009. It bordered the provinces of Western Finland and Eastern Finland. It also bordered the Gulf of Finland and Russia. History O ...
. It is the outermost of the three
beltway A ring road (also known as circular road, beltline, beltway, circumferential (high)way, loop, bypass or orbital) is a road or a series of connected roads encircling a town, city, or country. The most common purpose of a ring road is to assist i ...
s in the Helsinki region, and the first one to be built. It lies across the four Finnish municipalities of
Kirkkonummi Kirkkonummi (; sv, Kyrkslätt, , Sweden ) is a Municipalities of Finland, municipality of inhabitants () in southern Finland. The literal meaning of the words "''Kirkkonummi''" and "''Kyrkslätt''" in English language, English is "church heath". ...
,
Espoo Espoo (, ; sv, Esbo) is a city and municipality in the region of Uusimaa in the Republic of Finland. It is located on the northern shore of the Gulf of Finland, bordering the cities of Helsinki, Vantaa, Kirkkonummi, Vihti and Nurmijärvi ...
,
Vantaa Vantaa (; sv, Vanda, ) is a city and Municipalities of Finland, municipality in Finland. It is part of the inner core of the Greater Helsinki, Finnish Capital Region along with Helsinki, Espoo, and Kauniainen. With a population of (), Vantaa i ...
and
Helsinki Helsinki ( or ; ; sv, Helsingfors, ) is the Capital city, capital, primate city, primate, and List of cities and towns in Finland, most populous city of Finland. Located on the shore of the Gulf of Finland, it is the seat of the region of U ...
. Shaped like an
arch An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaul ...
, the road is long, of which only a very small fraction passes within the borders of Helsinki itself.


Overview

Work on Kehä III started in 1962, on the base of an existing road. The construction was finished in 1972, initially with only one
lane In road transport, a lane is part of a roadway that is designated to be used by a single line of vehicles to control and guide drivers and reduce traffic conflicts. Most public roads (highways) have at least two lanes, one for traffic in each ...
per direction. Most parts of the road have since been expanded to at least two lanes per direction, although the westernmost end is still one-lane per direction in places. The most recent construction work has been extensive renovation on its busiest stretch in Vantaa, where several
interchanges Interchange may refer to: Transport * Interchange (road), a collection of ramps, exits, and entrances between two or more highways * Interchange (freight rail), the transfer of freight cars between railroad companies * Interchange station, a rai ...
have been built or improved, and lanes added. Industrial development along the road has introduced higher volumes of heavy traffic. The
European route E18 European route E18 runs from Craigavon in Northern Ireland to Saint Petersburg in Russia, passing through Scotland, England, Norway, Sweden and Finland. It is about in length. Although the designation implies the possibility of a through jour ...
is routed through Kehä III, bypassing central Helsinki. Kehä III is often informally or jokingly considered the outer border of the Helsinki area, because most of the urban development of the capital region is inside the ring. The road itself doesn't follow any legal border and rural and urban landscapes can be found on both sides of it. The new zone system for fares in the HSL area follows the borders of Kehä III.


History

The beginning was constructed between 1962 and 1965 from Bemböle to Länsisalmi and the continuation to Jorvas was completed in 1968. Originally, each road was two lanes wide. The amount of traffic grew considerably over time and as a result the original intersections with Helsinki's exit roads became dangerous. Therefore, all intersections with the city exits had been rebuilt as merging loops by the beginning of the 1970s. The road has undergone almost continual modification and widening throughout its existence as traffic has increased in the region. In the mid-1970s, the road between
Tikkurila Tikkurila (; sv, Dickursby) is a district and major region of the municipality of Vantaa, Finland. Located in the eastern half of the Helsinki conurbation, some north of the capital's downtown district, it is the administrative and commercial h ...
and
Helsinki-Vantaa Airport Helsinki-Vantaa Airport (; fi, Helsinki-Vantaan lentoasema, sv, Helsingfors-Vanda flygplats), or simply Helsinki Airport, is the main international airport of the city of Helsinki, its surrounding metropolitan area, and the Uusimaa region. ...
was renovated and 10 years later the road was expanded to four lanes up to
Vihdintie Finnish regional road 120 ( fi, Seututie 120, sv, Regionalväg 120), or Vihti Road ( fi, Vihdintie, sv, Vichtisvägen), is a regional road from Haaga in Helsinki to Maikkala in Vihti. The road is part of the former Pori Highway. Regional road 1 ...
. At the end of the 1980s, the road was extended to Muurala and then once again one kilometer farther to the west. This same stretch was rebuilt shortly afterwards when it was expanded to four lanes up through Gumböle during the 1990s. Throughout the 1980s, stretches of Kehä III were completed to the
Lahti Lahti (; sv, Lahtis) is a city and municipality in Finland. It is the capital of the region of Päijänne Tavastia (Päijät-Häme) and its growing region is one of the main economic hubs of Finland. Lahti is situated on a bay at the southern e ...
motorway and in the 1990s to the
Porvoo Porvoo (; sv, Borgå ; la, Borgoa) is a city and a municipality in the Uusimaa region of Finland, situated on the southern coast about east of the city border of Helsinki and about from the city centre. Porvoo was one of the six medieval to ...
motorway. The road to
Vuosaari Harbour Vuosaari Harbour (''Vuosaaren satama'' in Finnish; ''Nordsjö hamn'' in Swedish) is a seaport facility in Helsinki, Finland, opened in November 2008. It is also the 19th tallest building in Finland. Pillu Kolehmainen is the most famous stevedorer ...
, completed in 2007, extends from the eastern endpoint of Kehä III. At the start of 2000s major improvements were made to the heavily used stretch from Tikkurila to Helsinki-Vantaa Airport: the road was widened to 6 lanes and
Tuusulanväylä The Finnish national road 45 ( fi, Kantatie 45; sv, Stamväg 45) is the 2nd class main route between the major cities of Helsinki and Hyvinkää in southern Finland. It runs from Käpylä in Helsinki to the Hyrylä in Tuusula as a motorway calle ...
motorway's intersection was rebuilt as a large system connection. When the road was originally built, it was simply called the "Ring road", but the planning of the other two major roads caused confusion. Therefore, it was called Kehä III from the 1970s onward.


See also

*
Kehä I Ring I (pronounced "ring one", fi, Kehä I, sv, Ring I) is the busiest road in Finland, carrying up to 113,000 vehicles per day. It is the innermost of the three beltways in the Greater Helsinki region, numbered as regional route 101 and r ...
* Kehä II *
Vihdintie Finnish regional road 120 ( fi, Seututie 120, sv, Regionalväg 120), or Vihti Road ( fi, Vihdintie, sv, Vichtisvägen), is a regional road from Haaga in Helsinki to Maikkala in Vihti. The road is part of the former Pori Highway. Regional road 1 ...
*
Tuusulanväylä The Finnish national road 45 ( fi, Kantatie 45; sv, Stamväg 45) is the 2nd class main route between the major cities of Helsinki and Hyvinkää in southern Finland. It runs from Käpylä in Helsinki to the Hyrylä in Tuusula as a motorway calle ...


External links

{{DEFAULTSORT:Ring Iii Ring roads in Finland Roads in Finland Streets in Helsinki Transport in Helsinki Transport in Espoo Transport in Vantaa