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- Thailand's Transport Ministry has prepared 11 infrastructure megaprojects, valued at over THB359.8 billion, for Cabinet approval in 2026.
- The projects are divided into three main categories: six road and expressway developments, three double-track railway sections, and four major airport expansions.
- Key rail projects include three sections of a double-track railway worth a combined THB101.25 billion, while aviation investments total THB90.66 billion to upgrade four airports.
- Notable road projects include the Nakhon Pathom–Cha-am Motorway (THB61.15 billion) and the Phuket Expressway (THB46.75 billion).
Thailand will enter another political transition in 2026 after the Election Commission (EC) set a new House of Representatives election for February 8, with advance voting on February 1.
Amid continued political uncertainty, one immediate impact has been the inability to move forward with approvals for projects that carry long-term budget commitments.
The Ministry of Transport, a key driver of infrastructure investment, has been allocated THB265.41 billion for 2026, up THB20.83 billion, or about 8.52%, from 2025.
The ministry has compiled a list of projects awaiting submission to a new Cabinet for approval, saying these could be pushed ahead immediately once a new government is in place.
In total, 11 projects are currently in the queue for Cabinet consideration, with a combined value of THB359.80 billion.
If approved in 2026, the ministry believes it would serve as an important tool to stimulate the economy and create employment in the construction sector.
Road and expressway projects
1. Chalong Rat Expressway–Outer Bangkok Ring Road (East), valued at THB13.67 billion.
The Ministry of Transport has submitted the proposal to the Cabinet Secretariat, and it is awaiting placement on the Cabinet agenda.
2. Bang Pa-in Junction development, split into two parts:
A junction linking Motorway M6 with Highway 32, worth THB5.55 billion; and
A junction linking Motorway Route 9, worth THB4.10 billion.
Both projects are being consolidated by the Department of Highways for submission to the Ministry of Transport.
3. Western Outer Ring Road Motorway (M9), Bang Bua Thong–Bang Pa-in, worth THB15.86 billion.
The Ministry of Transport has submitted it to the Cabinet Secretariat, and it is awaiting agenda placement.
4. Srinakarin–Suvarnabhumi Airport Expressway, worth THB20.81 billion.
The Expressway Authority of Thailand (EXAT) is preparing to submit the proposal to the Ministry of Transport.
5. Nakhon Pathom–Cha-am Motorway (M8) and a Public-Private Partnership (PPP) systems package for the Nakhon Pathom–Pak Tho section, worth THB61.15 billion.
The Ministry of Transport is currently seeking feedback from relevant agencies and is awaiting responses.
6. Phuket Expressway project (Muang Mai–Koh Kaew–Kathu), worth THB46.75 billion.
The project is in the agency consultation stage before being consolidated for submission to the Cabinet.
Source: The Nation Transport Ministry unveils 11 megaprojects for 2026 worth over THB359.8 billion (JANUARY 01, 2026)