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New expressway linking Bangkok’s west with inner capital ready to open ahead of schedule

Residents living in the western part of the capital will soon travel to the inner zones of the capital faster as now the new expressway, Si Rat-Outer Ringroad, is 99.2% finished and is expected to open ahead of schedule in August.

This 16.7 kilometres long expressway will allow them to travel into central Bangkok much more convenient.

The Si Rat Expressway Project – Outer Ring Road is part of a plan to extend Bangkok’s Metropolitan Expressway network to the western portions of the capital.​

Full report: http://www.pattayamail.com/thailandnews/new-expressway-linking-bangkoks-west-inner-capital-ready-open-ahead-schedule-140270



The new elevated expressway is very well visible on Google Earth imagery dating back from January 2016.
 

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Motorway 7

There are plans to add elevated structures to Motorway 7 east of Bangkok. The elevated highway features 3 lanes in each direction, consisting of two 16 kilometer long viaducts.

The viaducts will be constructed between the existing main carriageways and frontage roads, increasing motorway capacity from 8 to 14 lanes, and overall capacity - including frontage roads - to up to 20 lanes.

Source in Thai: http://www.svn-motorway7.com/news_detail.php?WP=oGSaG3FDnoy44UOaoFM3BRjloH9axUF5nrO4Ljo7o3Qo7o3Q







 

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Construction work for Bang Pa-in - Nakhon Ratchasima Motorway (M6) commenced by Prime Minister Prayuth Chan-o-cha on this day :

  • Total length of 196 kilometers with construction cost of THB 84.6 billion.
  • A route from Phahonyothin Road (Highway 1) and Kanchanaphisek Road (M9; Eastern Outer Ring Road) to Nakhon Ratchasima's Western Bypass Road (Highway 204).
  • Linking Bang Pa-in District in Ayutthaya Province to Nakhon Ratchasima City.
  • Comprising of 2 sections (6-lane and 4-lane carriage ways).
  • 9 interchanges, 5 rest areas, 2 service areas and 1 service center along the route.
  • Part of the 535 km. motorway network to Nong Khai Province in the northeastern region.
  • Operational within 2020.
Work begins on new Ayutthaya-Ratchasima motorway

ฺBangkok Post, 3 Aug 2016 at 12:12

Prime Minister Prayut Chan-o-cha on Wednesday inaugurated the construction of a new 196-kilometre inter-city tollway being built at a cost of 84.6 billion baht from Ayutthaya province via Saraburi to Nakhon Ratchasima. The launching ceremony for Highway No.6 was held at the 99 kilometre marker of the Phahon Yothin Highway in Nong Khae district, Saraburi. It is scheduled for completion in four years.

More details : http://www.bangkokpost.com/news/general/1051821/work-begins-on-new-ayutthaya-ratchasima-motorway

Credit: Bangkok Post, POSTgraphics


Credit: Wekorat.com




Credit: สำนักสำรวจและออกแบบ
 

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There are plans to add elevated structures to Motorway 7 east of Bangkok. The elevated highway features 3 lanes in each direction, consisting of two 16 kilometer long viaducts.

The viaducts will be constructed between the existing main carriageways and frontage roads, increasing motorway capacity from 8 to 14 lanes, and overall capacity - including frontage roads - to up to 20 lanes.
Looks like access to the new carriageways will be partly achieved via an extra pair of loops at the Srinagarinda cloverleaf, making six loops in total.

A little further South, this 'double looping' strategy is used at the interchange between the Bang Na-Chon Buri Expressway and Motorway 9. The expressway underwent a similar upgrade to the one on Motorway 7, with new elevated carriageways. Full access (both carriageways in both directions) is provided via four loops (two pairs stacked on top of each other) and four windmill-style connectors. It is basically two full 'clovermill' interchanges built on top of each other. This is one of very few interchanges in the world providing full four-way freeflow access to/from the express AND local lanes.
 

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Si Rat - Outer Ring Road Expressway progress :

  • Trial opening between 15 August (5:30 am.) - 17 August (11:59 pm.) without any toll charges.
  • Official opening on 22 August with 50 baht toll charged from 4-wheel vehicle.
Free use of new expressway next week

Bangkok Post 11/08/2016 at 06:34 PM

The new tollway links to the existing expressway north of the Mor Chit 2 bus terminal. But the link between the two lines will not be opened during the trial test run and drivers who want to use the new elevated road have to go through the Khampheng Phet 2 toll gate free of charge.

http://www.bangkokpost.com/news/general/1058945/free-use-of-new-expressway-next-week

First day of trial opening :

Kanchanaphisek Road - Kampaengphet 2 Road (Inbound), Montage by Khun Kittiphong Bhurikitti on 15 August 2016

 

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Here's a dashcam video of the new Taling Chan - Bang Sue Expressway in Bangkok. This video is taken eastbound into the city


observations;
* the entire expressway is elevated
* the expressway is at a high elevation, giving a nice view over the city. It runs mostly over a railroad corridor, which means its elevation is higher than most other elevated highways.
* there is exit numbering, exits 11, 13 & 17 eastbound
* most interchanges only allow eastbound access into the city.
* the first eastbound exit is not until Charan Sanitwong Road (near the Chao Phraya River), after 11 kilometers.
* the expressway can only be accessed from the frontage roads of the Ring Road. Traffic needs to exit early to access the new expressway.
 

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Here's another video of the expressway in both directions (first eastbound, then westbound).


Exit numbering;

Eastbound:
* Exit ? Suan Phak Road
* Exit 11 Charan Sanitwong Road
* Exit 13 Pracha Rat Sai Road
* Exit 17 Chatuchak
* Exit ? Sirat Expressway

Westbound:
* Exit? Sirat Expressway
* Exit 15 Pracha Rat Sai Road
* Exit 12 Charan Sanitwong Road
* Exit 9 Sirindhorn Road
* Exit 6 Ratchapruk Road
* Exit 2 Kanchanaphisek Road
* Exit ? U-turn
* Exit? Outer Ring Road

All westbound traffic has to leave the expressway at Exit 2 Kanchanphisek Road. There is no toll plaza there. I wonder how they charge tolls there, as there is a toll plaza at the beginning and ending when going towards Bangkok, but there is only a toll plaza at the beginning when leaving Bangkok.
 

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Si Rat - Outer Ring Road Expressway is officially opened today :
Bangkok, August 22, 2016, 9:00 a.m - Prime Minister Prayuth Chan-Ocha, accompanied by Minister of Transport, EXAT Governor and BEM Chairman, officially open the 16.7-kilometer expressway linking the existing Si Rat Expressway in Bangsue to Outer Ring Road (Kanchanaphisek Road) in western Bangkok. The newly constructed expressway helps easing traffic congestions between the two sides of Chao Praya river, shortens the commuting time to around 13 - 20 minutes. Total cost of the project is around THB 32.82 billion.
Photographs by Expressway Authority of Thailand (EXAT) :







Photographs by Ministry of Transport :



 

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Construction contracts for new motorways are singed today at Department of Highway :

  • M6 Bang Pa-in - Nakhon Ratchasima (196 km.) : 17 contracts (additional), THB 23,095.18 million in total.
  • M81 Bang Yai - Kanchanaburi (96 km.) : 7 contracts (new), THB 8,884.80 million in total.
Current bidding progress :
Code:
[U]Route[/U]     [U]Total[/U]     [U]Awarded[/U]     [U]Signed[/U]     [U]Unsigned[/U]     [U]Remaining[/U]*

 M6        40         25          21          4            15        contracts
 M81       25          9           7          2            16        contracts
* The remaining contracts for both routes will be awarded between October - November 2016, the process is expected to be complete within December 2016.




Source (in Thai) : Department of Highway, Banmuang Newspaper
 

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What has caused this construction boom of new motorways in Thailand? If I'm correct it has been a while since new motorways were constructed outside of Bangkok. And now they're constructing hundreds of kilometers of them.
 

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As Khun Codename B said, these projects are part of Thailand's Infrastructure Master Plan (2015 - 2022). Department of Highway is currently implementing 6 motorway projects in total, 3 of them are flagship projects (summary can be found here; Pulished by Stock Exchange of Thailand).

Flagship Motorway Projects :
Code:
[U]Route[/U]    [U]Route Section[/U]                         [U]Length[/U]      [U]Budget framework[/U]     [U]Status[/U]

 M6      Bang Pa-in - Nakhon Ratchasima        196 km.       THB 84.60 b.        U/C
 M7      Pattaya - Map Ta Phut (extension)     32  km.       THB 20.20 b.        U/C
 M81     Bang Yai - Kanchanaburi               96  km.       THB 55.62 b.        C/S

[I]C/S = Contracts signed, construction likely to start soon[/I]
Upcoming Motorway Projects :
Code:
[U]Route[/U]    [U]Route Section[/U]                         [U]Length[/U]      [U]Budget framework[/U]     [U]Status[/U]

 M5      Bang Pa-in - Nakhon Sawan             180 km.       THB 2 - 3 b.        P/D
 M8      Nakhon Pathom - Cha Am                109 km.       THB 80.60 b.        P/D
 M8      Hat Yai - Sadao (Malaysia border)     62  km.       THB 35.00 b.        P/D

[I]P/D = Included in the government's public - private partnership plan, currently under
planning and design process. Construction of M8 is expected to begin in 2017.[/I]

Source : [URL="http://www.nationmultimedia.com/business/Govt-likely-to-open-bidding-for-Nakhon-Pathom-Cha--30290511.html"]The Nation[/URL] | [URL="http://www.prachachat.net/news_detail.php?newsid=1474879098"]Prachachat[/URL] (in Thai)
M5 route (Bang Pa-in - Nakhon Sawan section) :



Source : http://www.skyscrapercity.com/showpost.php?p=82674670&postcount=1558

M8 route (Nakhon Pathom - Cha Am section) :



Source : http://kpi2.playwebagency.com/index.php?name=event&file=detail&orderpage=all&event_id=112

M8 route (Hat Yai - Sadao [Malaysia border] section) :



Source : http://www.skyscrapercity.com/showpost.php?p=124941731&postcount=68
 
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