M4 (Istanbul Metro)

M4 Kadıköy–Kartal

Yenisahra station
Overview
Type Rapid Transit
System İstanbul Metro
Status Opened (3 stations are still under construction)
Locale İstanbul, Turkey
Termini Kadıköy
Kartal
Stations 16 (3 more under construction)
Services 1
Daily ridership 134,524 (2013)
Operation
Opened 17 August 2012 (2012-08-17)
Owner İstanbul Metropolitan Municipality
Operator(s) İstanbul Ulaşım A.Ş.
Depot(s) Maltepe
Rolling stock 144 CAF[1]
Technical
Line length 21.7 km (13.5 mi)
Number of tracks 2
Track gauge 1,435 mm (4 ft 8 1⁄2 in) standard gauge
Electrification 1,500 V DC Overhead line
Operating speed 80 km/h (50 mph)
Route number M4
Route map
Legend
Line M4
 KadıköyLine T3İDO
 Ayrılık ÇeşmesiMarmaray
 Acıbadem
 ÜnalanMetrobus (Istanbul)
 Göztepe
 Yenisahra
 Kozyatağı
 Bostancı
 Küçükyalı
Maltepe Depot
 Maltepe
 Huzurevi
 Gülsuyu
 Esenkent
 Hastane - Adliye
 Soğanlık
 Kartal
 Yakacık
 Pendik
 Kaynarca
 Marmara E.A Hastanesi
 Şeyhli
 Sanayi
Sabiha Gökçen
International Airport

Sabiha Gökçen International AirportParking

M4, officially referred to as the M4 Kadıköy–Kartal line (Turkish: M4 Kadıköy–Kartal Metro Hattı), is a 21.7-kilometre (13.5 mi), 16-station[2] rapid transit line of the Istanbul Metro. Running between Kadıköy and Kartal, it is the only rapid transit line operating on the Asian side of Istanbul. The M4 mostly runs under State road D100, parallel to the Istanbul-Ankara Main Line and is entirely underground.

The M4 opened on 17 August 2012[3] with a large ceremony in Kadıköy, in which Recep Tayyip Erdoğan personally took part in. On 29 October 2013, with the opening of Marmaray rail service under the Bosphorus, Ayrılık Çeşmesi station was opened to allow passengers to transfer between lines.[4][5]

History

A plan to build a subway line on the Asian side of İstanbul was approved in 2005. In 2008, a €751 million construction contract was awarded to a consortium of Astaldi, Makyol and Gülermak. The rolling stock was ordered from the Spanish company CAF.[6] In mid-2010, the construction of the tunnels was completes, and the track laying started. The route has connections with TCDD's Marmaray system at Ayrılıkçeşmesi and the İstanbul Metrobus system at Ünalan. Scheduled opening date was December 2011 up to Kartal, however it was postponed due to signalization works.[7]

Stations

Specifications

The stations Kadıköy, Ayrılıkçeşmesi, Ünalan and Göztepe are situated below sea level. The average distance between the stations is 1,300 m (1,400 yd). The distance between the stations at Maltepe and Huzurevi is the shortest at 800 m (870 yd). The distance between Bostancı and Küçükyalı is the longest with 2,300 m (2,500 yd). The operations control center of the line is situated in Esenkent, and the depot is located in Maltepe. Another depot is to be built in Kaynarca in 2015 when the line extends there .[8]

Train frequency is currently every 150 seconds, and will be shortened to 90 seconds later on. Trains remain at stations for an average of 15 seconds. Four-car trains have a 1,000 passenger capacity and eight-car trains have the double capacity. Ridership capacity in one direction is 70,000 passengers hourly. Total travel time of the entire line is 35 minutes.[8]

Rolling Stock

M4 is operated by CAF trains (144 cars in total) every 3.5 minutes during peak hours. The frequency is less on weekends and during off-peak hours.

See also

References

  1. ↑ "Kadıköy-Kartal Metro Hattı 144 Adet Metro Aracı Alımı İşi" (in Turkish). İstanbul Büyükşehir Belediyesi. Retrieved 2013-11-16.
  2. ↑ "M4 Kadıköy-Kartal Metro Hattı" (in Turkish). İstanbul Ulaşım. Retrieved 2015-10-04.
  3. ↑ "Yüzde 50 müjdesiyle geliyor". Hürriyet (in Turkish). 2012-08-17. Retrieved 2013-11-16.
  4. ↑ "Kadıköy - Kartal Metrosu Ayrılıkçeşme İstasyonu ihalesi" (in Turkish). Emlak Kulisi. 2012-07-11. Retrieved 2013-11-16.
  5. ↑ "Marmaray tunnel opens to link Europe with Asia". Railway Gazette International. 29 October 2013. Retrieved 4 October 2015.
  6. ↑ "Kadiköy - Kartal metro opened by Prime Minister". Railway Gazette International. 17 August 2012. Retrieved 4 October 2015.
  7. ↑ "Kadıköy-Kartal Metro Hattı Temmuzda Açılacak" (in Turkish). İstanbul Net. 2012-03-02. Retrieved 2013-11-16.
  8. 1 2 "Kadıköy-Kartal Metro Hattı" (in Turkish). İBB. Retrieved 2012-12-11.

External links

Media related to Istanbul Metro line M4 at Wikimedia Commons

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