Thailand’s first expressway tunnel proposed through 36 billion baht investment

[webfact]

 

The Expressway Authority of Thailand (Exat) has put forth a proposal for an underground expressway, aiming to replace a contentious section of the N1 Expressway development. The proposal came after an extensive 17-month initial feasibility study.

 

Exat’s Governor, Surachet Laophulsuk, revealed this plan during the project’s second hearing, stating that multiple factors such as engineering, investment costs, and environmental impact, were thoroughly evaluated. The result revealed that an underpass was the most viable option.

 

This proposed 6.7km underpass would be Thailand’s maiden expressway tunnel. It would stretch along Ngarmwongwan Road via Phongphet Intersection, Bang Khen Intersection, and Kaset Intersection to Prasertmanukit Road, before connecting with the N2 Expressway.

Surachet explained that among the three options studied, the tunnel scored the highest, with a total score of 82.5. The estimated investment cost for this project is 36 billion baht, and it’s expected to generate an economic internal return rate of 17%.

 

by Mitch Connor

Photo by Benjamin Huggett on Unsplash

 

Full story: https://thethaiger.com/news/national/thailands-first-expressway-tunnel-proposed-through-36-billion-baht-investment

 

-- The Thaiger 2023-09-05

 

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[KannikaP]

Just hope they do not use RAAC concrete in the construction.   555

[kingstonkid]

What is the plan for rain and how much is it going to screw up traffic.  The solution should not be making it easier for cars but finding other means to get people around.

[PETERTHEEATER]

The figure of 82.5 is, presumably, the expected number of RTAs per month?

There seems to be a pedestrian level on one side of the main bore accessed by stairways from the upper and lower vehicle lanes to evacuate vehicle occupants in emergency. I love the addition of the large 'running man' posters which my RAF colleagues used to refer to  as "RLF" signs (Run Like F**k)????

At that depth it would be under the water table so "All hands to the pumps"

[hotchilli]

27 minutes ago, PETERTHEEATER said:

At that depth it would be under the water table so "All hands to the pumps"

I was thinking the same thing, and the plan for heavy rainfall?

[impulse]

Never gonna fly because there's no place to build a Central Mall (and parking) under the ground.

 

Edited September 5, 2023 by impulse

[Bundooman]

I wonder which will arrive first, this tunnel or the submersion of Bangkok from global warming?

[josephbloggs]

23 hours ago, hotchilli said:

I was thinking the same thing, and the plan for heavy rainfall?

Wow, I'm sure they hadn't thought of that - quick, give them a ring before it's too late!