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Old October 26th, 2016, 01:28 PM   #701
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Turkey announces ' Western Marmara Motorway ' to complete a minimum 3+3 outer ring of Istanbul by 2023

http://www.hurriyetdailynews.com/ank...&NewsCatID=345

It will connect to the 4+4 Northern marmara in Kinali and proceed via the Canakalle Bridge over the Dardanelles to (I assume) the Bursa-Izmir motorway at its southern end.

To go round the circle you must cross all 3 of the great bridges.
Is there any plan for a spur connection to this road towards the Greek-Turkish border near Alexandroupolis? I remember the road connecting the border to Istanbul was really bad.
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Old October 29th, 2016, 07:10 PM   #702
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Gümüşhane ringroad,
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Old November 3rd, 2016, 05:58 PM   #703
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Turkeys PPP Black Hole.

Turkey is double exposed to the Izmir - Gebze / Northern Marmara (3rd Bosphorous) /Western Marmara (Canakkale) motorway megaprojects.

http://www.al-monitor.com/pulse/orig...le-coffer.html

1. Traffic Guarantees. The 3rd Bosphorous bridge is reliant on unfinished Northern Marmara sections west and east of the bridge to deliver traffic ( have these even started since tenders were accepted some months back. )

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The Gebze-Izmir Motorway project, for instance, involves a demand guarantee of 40 billion Turkish liras (some $13 billion) for the contractors, who will hold the operational rights for 15 years. In the North Marmara Motorway project, which includes the third Bosporus bridge, the demand guarantee is nearly $6 billion for an operation period of about eight years.
2. If the traffic guarantees do not result in stable finances for the PPP operators the Treasury has ALSO guaranteed their many billions of loans if they collapse.

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the Treasury’s debt guarantees for the third Bosporus bridge, the Eurasia Tunnel and the Gebze-Izmir Motorway. The Treasury, which puts the total investment volume of the three projects at $11 billion and the loans they have used at $8.7 billion, has guaranteed that it will assume all financial obligations, including external financing burdens,
And we never mentioned that Airport.

This being Turkey nobody is quite sure how large these guarantees are in total and one SERIOUSLY risks being purged for even asking.

Safe to say the state is looking at a potential $50bn black hole over the next 10 years. Thats without starting the Western Marmara/ Canakkale Bridge section to finish the Ring Road of Istanbul....never mind that big canal.
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Old December 18th, 2016, 04:59 PM   #704
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Renovation of European Side coastal road for Eurasia Tunnel,















http://www.ibb.istanbul/tr-TR/Pages/...x?NewsID=23536
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Old December 18th, 2016, 05:14 PM   #705
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Even if the approach highway's width and vehicle limitations, will the tunnel's 2+2 lane system cause inside congestion?
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Old December 18th, 2016, 05:18 PM   #706
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It helps that trucks will be banned. The last photo was taken from Zeytinburnu, which is a good 5 kilometers west of the tunnel entrance.
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Old December 18th, 2016, 05:47 PM   #707
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There won't be any traffic in the tunnel because they'll close the entrance before that. Vehicles will wait outside of the tunnel.
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Old December 19th, 2016, 06:23 PM   #708
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Istanbul’s Eurasia Tunnel set to open on Dec 20 in official ceremony



The 3.34-km-long tunnel crossing under the sea, which is also dubbed as the “Istanbul Straight Road Crossing Project,” will connect the two continents for a second time under the water. The total distance of the tunnel will be 5.4 kilometers, 3.34 kilometers of which will be under the sea. Together with access roads, the Eurasia Tunnel Project’s total distance will be 14.6 kilometers. At its deepest point, the tunnel will be 106.4 meters below the surface of the Bosphorus Strait.

The tunnel, linking Kazlıçeşme on Istanbul’s European side and Göztepe in Asia, aims to reduce chronic traffic congestion in Turkey’s most populous city.

The project was contracted in 2009 through a joint Turkish-Korean venture later named Eurasia Tunnel Operation Construction and Investment (ATAŞ). After the completion of the project, the company will run the tunnel for the next 24 years and five months, when the tunnel’s operational rights will be transferred to the state.

http://www.hurriyetdailynews.com/ist...&NewsCatID=345
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Old December 19th, 2016, 06:33 PM   #709
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I've recently seen some photos from the tubes, it seems that the upper deck has a significantly higher clearance than the lower deck. But I assume that both decks have a truck ban.
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Old December 19th, 2016, 06:38 PM   #710
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Yep.

Some photos from the inside,
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Old December 19th, 2016, 08:46 PM   #711
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I've recently seen some photos from the tubes, it seems that the upper deck has a significantly higher clearance than the lower deck. But I assume that both decks have a truck ban.
don't you think that it's just an optical illusion? i guess that usefull clearance will be the same at both decks, but upper deck will have higher central part due to parabolic shape of the ceiling.
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Old December 19th, 2016, 08:56 PM   #712
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In part it's the shape of the tube, but if you look at those workers in the distance. The equipment appears to be at least 3.5 meters above the lanes, it's much lower in the lower deck.



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Old December 20th, 2016, 07:02 PM   #713
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I agree with Chris and I'll tell after I use it.



the tunnel has some extra lanes (seen at the left) for emergency,

http://www.dha.com.tr


First road tunnel under İstanbul’s Bosphorus opens

The project is being constructed using a build-operate-transfer (BOT) model that will ultimately cost $1.2 billion. Some 960 million of the amount was provided through international loans, while the remaining amount was financed by the project holders Yapı Merkezi and SK E&K. The project was contracted in 2009 through a joint Turkish-Korean venture later named Eurasia Tunnel Operation Construction and Investment (ATAŞ). After the completion of the project, the company will run the tunnel for the next 24 years and five months, when the tunnel’s operational rights will be transferred to the state.

The tunnel will be open between 7.00 a.m. and 9 p.m. until the end 2016.

The total distance of the tunnel will be 5.4 kilometers, 3.34 kilometers of which will be under the sea.

Together with access roads, the Eurasia Tunnel Project’s total distance will be 14.6 kilometers. At its deepest point, the tunnel will be 106.4 meters below the surface of the Bosphorus Strait.

The tunnel has also been designed in order to be resilient to earthquakes and tsunamis, and can even be used as bunker if necessary.

http://www.hurriyetdailynews.com/fir...&NewsCatID=345
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Old December 21st, 2016, 11:31 PM   #714
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Quote:
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I've recently seen some photos from the tubes, it seems that the upper deck has a significantly higher clearance than the lower deck. But I assume that both decks have a truck ban.
According to the tunnel website, anything more than 5000 kg or two axles is banned.
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Old December 22nd, 2016, 10:39 AM   #715
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Any signs of actual construction of the remaining sections of the Northern Marmara yet?
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Old December 22nd, 2016, 03:54 PM   #716
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According to the tunnel website, anything more than 5000 kg or two axles is banned.
I found this photo specifying a 2.8 m clearance. So they allow higher vans. The A86 Duplex Tunnel in France is similar, but limited to 2.0 m.


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Old December 22nd, 2016, 06:22 PM   #717
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I found this photo specifying a 2.8 m clearance. So they allow higher vans.
The limit 2.8 m is to allow minibuses (dolmus), which are a popular means of transport in Istanbul.
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Old December 22nd, 2016, 10:56 PM   #718
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This year they opened three megaprojects in Istanbul area: the Third Bosphorus bridge, the Izmit Bay bridge and now Eurasia tunnel.
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Old December 22nd, 2016, 11:03 PM   #719
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The Marmaray Rail Tunnel also opened not too long ago. And there are plans for another road/rail tunnel under the Bosphorus, which is called the Great Istanbul Tunnel / Büyük İstanbul Tüneli. They started the tender for the technical design a year ago. I haven't read much about it since.
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Old December 23rd, 2016, 12:06 PM   #720
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Any signs of actual construction of the remaining sections of the Northern Marmara yet?

Anybody??????
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