Gültepe Tunnel
The Gültepe Tunnel ( tr, Gültepe Tüneli), is a motorway tunnel constructed on the Istanbul–Ankara motorway in Kocaeli Province, northwestern Turkey. It was opened to traffic in 1984. It is situated on the Gültepe Hill west of İzmit. The long twin-tube tunnel carries two lanes of traffic in each direction. The tunnel was constructed in the 1980s. During the 1999 İzmit earthquake, the tunnel was light damaged. In 2012, the tunnel's both tubes were reinforced. In the time period of 2013–2014, the tunnel was modernized for traffic safety. Around 55,000 vehicles pass through the tunnel in both directions daily. See also * List of motorway tunnels in Turkey References External links Map of road tunnels in Turkey at General Directorate of Highways (Turkey) The General Directorate Of Highways ( tr, Karayolları Genel Müdürlüğü) (KGM) is a state agency in charge of the construction and maintenance of all public roadways outside of cities and towns in Turkey. It w ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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İzmit
İzmit () is a district and the central district of Kocaeli province, Turkey. It is located at the Gulf of İzmit in the Sea of Marmara, about east of Istanbul, on the northwestern part of Anatolia. As of the last 31/12/2019 estimation, the city center had a population of 367,990. Kocaeli province (including rural areas) had a population of 1,953,035 inhabitants whom 1,111,789 lived in the Izmit City built-up (or metro) area made of Kartepe, Basiksele, Korfez, Golcuk, Derince and even Sapanca (in Sakaria Province) largely being conurbated. Unlike other provinces in Turkey, apart from Istanbul, the whole province is included within the municipality of the metropolitan center. İzmit was known as Nicomedia (Greek: Νικομήδεια) in antiquity, and was the eastern and most senior capital city of the Roman Empire between 286 and 324, during the Tetrarchy introduced by Diocletian. Following Constantine the Great's victory over co-emperor Licinius at the Battle of Chrysopolis ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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General Directorate Of Highways (Turkey)
The General Directorate Of Highways ( tr, Karayolları Genel Müdürlüğü) (KGM) is a state agency in charge of the construction and maintenance of all public roadways outside of cities and towns in Turkey. It was established on 1 March 1950, following the acceptance of the International Highways Act in 1949. The agency is a sub unit of the Ministry of Transport and Communication. Current head of the agency is Abdulkadir Uraloğlu . With its 18 divisions across the country, The KGM maintains a road network of motorways (''Otoyol'', prefixed by O), State highways (''Devlet yolu'', prefixed by D) and Province roads (İl yolu, prefixed by the two-digit province code) including related bridges, viaducts and tunnels on them, in total 68,633 km. The KGM administers the toll plazas on the toll roads and toll bridges collecting tolls, automated methods of transponder type OGS and RFID type HGS. Divisions * 1st - Istanbul Province, Northern Marmara Region * 2nd - Izmir Provinc ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Road Tunnel
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in the tunnel. Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment. Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossings, are built to allow wildlife to cross human-made barriers safely. Tu ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Istanbul
Istanbul ( , ; tr, İstanbul ), formerly known as Constantinople ( grc-gre, Κωνσταντινούπολις; la, Constantinopolis), is the List of largest cities and towns in Turkey, largest city in Turkey, serving as the country's economic, cultural and historic hub. The city straddles the Bosporus strait, lying in both Europe and Asia, and has a population of over 15 million residents, comprising 19% of the population of Turkey. Istanbul is the list of European cities by population within city limits, most populous European city, and the world's List of largest cities, 15th-largest city. The city was founded as Byzantium ( grc-gre, Βυζάντιον, ) in the 7th century BCE by Ancient Greece, Greek settlers from Megara. In 330 CE, the Roman emperor Constantine the Great made it his imperial capital, renaming it first as New Rome ( grc-gre, Νέα Ῥώμη, ; la, Nova Roma) and then as Constantinople () after himself. The city grew in size and influence, eventually becom ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Ankara
Ankara ( , ; ), historically known as Ancyra and Angora, is the capital of Turkey. Located in the central part of Anatolia, the city has a population of 5.1 million in its urban center and over 5.7 million in Ankara Province, making it Turkey's second-largest city after Istanbul. Serving as the capital of the ancient Celtic state of Galatia (280–64 BC), and later of the Roman province with the same name (25 BC–7th century), the city is very old, with various Hattian, Hittite, Lydian, Phrygian, Galatian, Greek, Persian, Roman, Byzantine, and Ottoman archeological sites. The Ottomans made the city the capital first of the Anatolia Eyalet (1393 – late 15th century) and then the Angora Vilayet (1867–1922). The historical center of Ankara is a rocky hill rising over the left bank of the Ankara River, a tributary of the Sakarya River. The hill remains crowned by the ruins of Ankara Castle. Although few of its outworks have survived, there are ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Kocaeli Province
Kocaeli Province ( tr, Kocaeli ili, ) is a Provinces of Turkey, province of Turkey and one of only three not to have the same official name as its capital, İzmit, which is thus also sometimes called Kocaeli. The province is the successor of the Ottoman Empire, Ottoman-era Sanjak of Kocaeli. The largest towns in the province are İzmit and Gebze. The Turkish car number plates#Location codes, traffic code is 41. The province is located at the easternmost end of the Sea of Marmara around the Gulf of İzmit. Kocaeli is bordered by the province of Istanbul Province, Istanbul and the Marmara Sea to the west, the Black Sea to the north, the province of Sakarya Province, Sakarya to the east, the province of Bursa Province, Bursa to the south and the province of Yalova Province, Yalova to the southwest. The metropolitan area of Istanbul extends to the Kocaeli-Istanbul provincial border. The size and natural conditions of the Bay of İzmit allow for extensive port facilities, including the ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with a East Thrace, small portion on the Balkans, Balkan Peninsula in Southeast Europe. It shares borders with the Black Sea to the north; Georgia (country), Georgia to the northeast; Armenia, Azerbaijan, and Iran to the east; Iraq to the southeast; Syria and the Mediterranean Sea to the south; the Aegean Sea to the west; and Greece and Bulgaria to the northwest. Cyprus is located off the south coast. Turkish people, Turks form the vast majority of the nation's population and Kurds are the largest minority. Ankara is Turkey's capital, while Istanbul is its list of largest cities and towns in Turkey, largest city and financial centre. One of the world's earliest permanently Settler, settled regions, present-day Turkey was home to important Neol ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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1999 İzmit Earthquake
On the 17th of August, 1999 at 3:01 AM local time, a catastrophic magnitude 7.6 earthquake struck the Kocaeli Province of Turkey, causing monumental damage and 17,127–18,373 deaths. Named for the quakes proximity to the northeastern city of Izmit, the earthquake is also commonly referred to as the August 17 Earthquake or the 1999 Gölcük Earthquake. The earthquake occurred on 00:01 UTC at a shallow depth of 15 km. A maximum Mercalli intensity of X (''Extreme'') was observed, marking this event as one of the most destructive earthquakes in the history of the region. The earthquake lasted for 37 seconds, causing seismic damage and becoming widely remembered as one of the deadliest natural disasters in modern Turkish history. The 1999 earthquake was part of a sequence along the North Anatolian Fault that started in 1939, causing large earthquakes that moved progressively from east to west over a period of 60 years. Tectonic setting The North Anatolian Fault Zone (NAFZ), which t ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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List Of Motorway Tunnels In Turkey
Below is the list of highway tunnels on Turkish motorways. Motorway Tunnels Motorway Tunnels (under construction) Motorway Tunnels (projected) * Yalova-İzmit Motorway, Yalova-Elmalık, T1 Motorway Tunnel (projected) - 2 x 942 m * Yalova-İzmit Motorway, Yalova-Elmalık, T2 Motorway Tunnel (projected) - 2 x 1.045 m * Yalova-İzmit Motorway, Çukurköy-Gölcük, T1 Motorway Tunnel (projected) - 2 x 480 m * Yalova-İzmit Motorway, Çukurköy-Gölcük, T2 Motorway Tunnel (projected) - 2 x 880 m * Yalova-İzmit Motorway, Çukurköy-Gölcük, T3 Motorway Tunnel (projected) - 2 x 1.560 m * Yalova-İzmit Motorway, Çukurköy-Gölcük, T4 Motorway Tunnel (projected) - 2 x 3.730 m * Yalova-İzmit Motorway, Gölcük-Bahçecik, T5 Motorway Tunnel (projected) - 2 x 830 m * Yalova-İzmit Motorway, Bahçecik-Karatepe, T6 Motorway Tunnel (projected) - 2 x 3.155 m * Kınalı-Balıkesir Motorway, Çorlu Cut-Cover T1 Motorway Tunnel (projected) - 2 x 500 m * Kınalı-Balıkesir Motorway, Tekirda ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Road Tunnels In Turkey
A road is a linear way for the conveyance of traffic that mostly has an improved surface for use by vehicles (motorized and non-motorized) and pedestrians. Unlike streets, the main function of roads is transportation. There are many types of roads, including parkways, avenues, controlled-access highways (freeways, motorways, and expressways), tollways, interstates, highways, thoroughfares, and local roads. The primary features of roads include lanes, sidewalks (pavement), roadways (carriageways), medians, shoulders, verges, bike paths (cycle paths), and shared-use paths. Definitions Historically many roads were simply recognizable routes without any formal construction or some maintenance. The Organization for Economic Co-operation and Development (OECD) defines a road as "a line of communication (travelled way) using a stabilized base other than rails or air strips open to public traffic, primarily for the use of road motor vehicles running on their own wheels", which in ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Transport In Kocaeli Province
Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land (rail and road), water, cable, pipeline, and space. The field can be divided into infrastructure, vehicles, and operations. Transport enables human trade, which is essential for the development of civilizations. Transport infrastructure consists of both fixed installations, including roads, railways, airways, waterways, canals, and pipelines, and terminals such as airports, railway stations, bus stations, warehouses, trucking terminals, refueling depots (including fueling docks and fuel stations), and seaports. Terminals may be used both for interchange of passengers and cargo and for maintenance. Means of transport are any of the different kinds of transport facilities used to carry people or cargo. They may include vehicles, riding animals, and pack animals. Vehicles may inclu ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |