| Country: | TUR |
| Type: | O |
| Route: | 7 |
| Alternate Name: | Northern Marmara Motorway Kuzey Marmara Otoyolu |
| Established: | As Connector 1987-2016, 2016 |
| Terminus A: | in Kınalı, Silivri |
| Junction: |
|
| Terminus B: | in Akyazı |
| Length Km: | 462.7 |
| Length Notes: | 952NaN2 open 3362NaN2 newly tendered (including connecting roads) |
| Regions: | Marmara |
| Provinces: | Istanbul Province, Kocaeli Province, Sakarya Province |
| Cities: | Kınalı, Istanbul, Gebze, İzmit, Adapazarı, Akyazı |
| Map: | Karte KMO TR.svg |
| Previous Type: | O |
| Previous Route: | 6 |
| Next Type: | O |
| Next Route: | 20 |
The Otoyol 7[1] (O-7; English: Motorway 7), or Kuzey Marmara Otoyolu, is a toll motorway in Turkey that bypasses Istanbul to the north. The motorway is 243 km in length between the Kınalı junction and the Akyazı junction, and is 8 lanes wide (4+4 lanes).
The completed section of highway crosses the Bosphorus Strait via the Yavuz Sultan Selim Bridge, which was opened in August 2016. The route is intended to serve as the outermost beltway of Istanbul as well as being the third road crossing of the Bosphorus. The route stretches 431km (268miles)[2] from Silivri, on the European side, to Akyazı on the Asian side. Connections to the O-4 as well as both the Bosphorus and Fatih Sultan Mehmet bridges will be built as the Northern Marmara Motorway and will bypass Istanbul to the north.
Up to 2016, the only section under construction was the 90km (60miles) section from Odayeri to Paşaköy. In this section, 14 tunnels, 61 viaducts, 45 underpasses, and 63 overpasses will be constructed.
The western (Silivri-Odayeri) and eastern (Kurtköy-Akyazı) sections were tendered in early May 2016. Construction was then estimated to take three years and to start in 2016.[3] The section of motorway south of O-3 was constructed in 1987 and was listed as a connector of the O-3 until 2016. The T1 and T2 tunnels on this highway were the location for the world's longest flight through a tunnel.
| District | Exit | Destination | Notes | |||
|---|---|---|---|---|---|---|
| Istanbul | Silivri (Kınalı) | 0.00 | 0.00 | K1 | -Istanbul/Edirne (Kınalı junction) | |
| Silivri | 12.15 | 7.55 | K2 | Silivri junction | ||
| Çatalca | 19.00 | 11.81 | Çatalca Service Area | |||
| 20.37 | 12.66 | Çatalca KMO - T1 Tunnel | ||||
| 22.45 | 13.95 | Çatalca KMO - T2 Tunnel | ||||
| 27.94 | 17.36 | K3 | , Çatalca junction | |||
| Çatalca (Nakkaş) | 34.43 | 21.40 | K4 | Nakkaş junction | ||
| Arnavutköy | 37.50 | 23.30 | Yassıören Service Area | |||
| 41.60 | 25.85 | K5 | Yassıören junction | |||
| 48.28 | 30 | K6 | Tayakadın junction | |||
| 51.00 | 31.69 | Tayakadın Service Area | ||||
| 54.13 | 33.64 | K7 | Terminal 1-Istanbul Airport | |||
| 56.52 | 35.12 | K8 | Terminal 2-Istanbul Airport | |||
| 58.21 | 36.17 | K9 | Cargo Terminal-Istanbul Airport | |||
| Eyüpsultan | 61.00 | 37.90 | K10 | -Mahmutbey | Connects to, Atatürk Airport | |
| 64.40 | 40.02 | Odayeri Service Area | ||||
| 77.00 | 47.85 | K11 | Kilyos Cd. | |||
| Sarıyer–Beykoz | 85.00 | 52.82 | Yavuz Sultan Selim Bridge | (Toll $3) | ||
| Beykoz | 93.00 | 57.79 | K12 | Riva Cd. | ||
| 101.00 | 62.76 | Riva Tunnel | ||||
| Çekmeköy | 105.00 | 65.25 | K13 | Şile Yolu Cd. | ||
| 107.00 | 66.49 | Reşadiye Service Area | ||||
| 113.00 | 70.22 | K14 | O-2/O-6 Connector-Ümraniye, | |||
| Sancaktepe | 115 | 71 | K15 | -Sultançiftliği,Şile | ||
| 117.00 | 71.46 | K16 | Atatürk Cd. | |||
| Pendik | 125.00 | 77.67 | K17 | O-4/O-6 Connector-Pendik, | Connects to Sabiha Gökçen Airport | |
| Tuzla, Istanbul | 137.26 | 85.29 | K18 | Formula (Istanbul Park) junction | ||
| 139.17 | 86.48 | Istanbul Park Service Area | ||||
| Kocaeli | Gebze | 142.25 | 88.40 | K19 | Balçık junction | |
| 146.70 | 91.16 | Mollafenari Service Area | ||||
| 150.50 | 93.52 | K20 | Liman Connector-Gebze,, | |||
| Körfez | 163.65 | 101.69 | Sevindikli Service Area | |||
| 169.38 | 105.25 | K21 | Sevindikli junction | |||
| Derince | 175.70 | 109.18 | K22 | Toylar junction | ||
| 178.15 | 110.70 | Kocaeli KMO - T1 Tunnel | ||||
| İzmit | 183.20 | 113.84 | Kocaeli KMO - T2 Tunnel | |||
| 185.50 | 115.27 | Kocaeli KMO - T3 Tunnel | ||||
| 185.90 | 115.52 | Kocaeli KMO - T4 Tunnel | ||||
| 189.06 | 115.48 | Kocaeli KMO - T5 Tunnel | ||||
| 191.82 | 119.19 | K23 | -İzmit, Kandıra junction | |||
| 194.80 | 121.05 | K24 | İzmit junction/ | |||
| 198.00 | 123.03 | İzmit Service Area | ||||
| 212.83 | 132.25 | K25 | Akmeşe junction | |||
| 218.00 | 135.46 | Akmeşe Service Area | ||||
| Sakarya | Adapazarı | 223.81 | 139.07 | K26 | -Adapazarı, Kaynarca junction | |
| 231.84 | 144.06 | K27 | Karasu junction | |||
| Akyazı | 240.00 | 149.13 | Akyazı Service Area | |||
| 243.35 | 145.62 | K28 | -Ankara, Istanbul, Akyazı junction |
| width=100 | Province ! | width=100 | District ! | width=40 | km ! | width=40 | mi ! | width=30 | Exit ! | width=300 | Destination ! | width=200 | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Istanbul | Eyüpsultan | style='background: #dcdcdc' | 0.0 | style='background: #dcdcdc' | 0.0 | style='background: #ccccff' | - | style='background: #ccccff' | Işıklar-Ağaçlı Rd. — Ağaçlı | style='background: #ccccff' | |||
| style='background: #dcdcdc' | 1.3 | style='background: #dcdcdc' | 0.8 | style='background: #ccccff' | K1 | style='background: #ccccff' | — Sancaktepe, Istanbul | style='background: #ccccff' | via Yavuz Sultan Selim Bridge | ||||
| style='background: #dcdcdc' | 4.6 | style='background: #dcdcdc' | 2.9 | style='background: #ccccff' | K15 | style='background: #ccccff' | style='background: #ccccff' | ||||||
| style='background: #dcdcdc' | 6.3 | style='background: #dcdcdc' | 3.9 | ||||||||||
| Arnavutköy | style='background: #dcdcdc' | 13.2 | style='background: #dcdcdc' | 8.2 | K14 | Arnavutköy-Habibler Rd. - Fenertepe | |||||||
| Başakşehir | style='background: #dcdcdc' | style='background: #dcdcdc' | K13 | Habipler - Hasdal connection | |||||||||
| style='background: #dcdcdc' | 17.3 | style='background: #dcdcdc' | 10.7 | K12 | Kanuni Sultan Süleyman Rd. | ||||||||
| style='background: #dcdcdc' | 19.7 | style='background: #dcdcdc' | 12.2 | K11 | 2720 St. | ||||||||
| style='background: #dcdcdc' | 20.9 | style='background: #dcdcdc' | 13.0 | K10 | 677/19 St. | ||||||||
| style='background: #dcdcdc' | 21.5 | style='background: #dcdcdc' | 13.4 | K9 | Süleyman Demirel Blvd. | ||||||||
| 21.7 | 13.5 | K19 | style='background: #ccccff' | West — Edirne | style='background: #ccccff' | Toll otoyol | |||||||
| East — Fatih | Connection to the and | ||||||||||||
| Bağcılar | style='background: #dcdcdc' | 23.5 | style='background: #dcdcdc' | 14.6 | K181 | Halkalı Ave. | |||||||
| Bahçelievler | style='background: #dcdcdc' | 25.5 | style='background: #dcdcdc' | 15.8 | K182 | Mimar Sinan Ave. | |||||||
| style='background: #dcdcdc' | 28.1 | style='background: #dcdcdc' | 17.5 | K183 | Değirmenbahçe Ave. | ||||||||
| style='background: #dcdcdc' | 29.4 | style='background: #dcdcdc' | 18.3 | K184 | Sanayi Ave. | Northbound exit, southbound entrance and exit | |||||||
| Bakırköy | style='background: #dcdcdc' | 30.1 | style='background: #dcdcdc' | 18.7 | K185 | — Çobançeşme | |||||||
| style='background: #dcdcdc' | 31.7 | style='background: #dcdcdc' | 19.7 | - | Atatürk Havalimanı Ave. — Atatürk Int. Airport | Transition into Boulevard | |||||||
