Introduction to the Elevated Tollway Expansion Project
The Department of Highways (DOH) is advancing plans to extend the elevated Uttraphimuk Tollway, also known as the Don Muang tollway, from Rangsit to Bang Pa-in in Ayutthaya. This ambitious project comes with a price tag exceeding 47 billion baht and aims to address long-standing traffic issues along key roads.
Purpose and Benefits of the Extension
The 22-kilometre extension is part of the Intercity Motorway No.5 (M5). It is expected to ease chronic congestion on Phahonyothin and Vibhavadi-Rangsit roads while improving connectivity between Bangkok, Pathum Thani, and Ayutthaya. According to DOH director-general Pongsakorn Chullabodhi, this development will significantly enhance transportation efficiency in the region.
Market Sounding Session and Private Sector Involvement
To gather insights and attract potential investors, the DOH organized a market sounding session on Thursday in Bangkok. Representatives from over 40 major firms attended, including notable companies such as CH Karnchang, Don Muang Tollway, BTS Group Holdings, Sino-Thai Engineering and Construction, and Gulf Development.
This event aimed to collect private-sector feedback and encourage participation in the Public-Private Partnership (PPP Gross Cost) project. Under this model, the private sector will be responsible for construction, operation, and maintenance, while ownership and toll revenues will remain under state control.
PPP Model Advantages
The PPP model is designed to ensure efficient project management and sustainable returns while mitigating financial risks for the government. This approach allows for shared responsibilities and benefits, promoting collaboration between public and private entities.
Project Timeline and Infrastructure Details
Construction of the tollway is expected to take four years, followed by a 30-year operation and maintenance period. The project will extend the current seven-kilometre route between the National Memorial and Rangsit in Pathum Thani, which currently operates toll-free. This expansion will create a 29-kilometre elevated corridor connecting Bangkok and Bang Pa-in in Ayutthaya province.
Tolls will range from 20 to 40 baht depending on distance, with the six-lane elevated motorway designed to accommodate high traffic volumes. The project will include seven entry and exit points and a rest area near the Rangsit 1 toll plaza.
Advanced Toll Collection System
“The road will also integrate the M-Flow barrier-free toll collection system to improve travel efficiency and reduce congestion at toll booths,” he said. This innovative system aims to streamline the tolling process, making it faster and more convenient for drivers.
Future Steps and Expected Outcomes
The DOH plans to invite bidding proposals early next year and sign contracts later in the year. The motorway is targeted for completion and opening by 2031. According to an economic assessment, the project is expected to generate more than 120 billion baht in total economic value, with net benefits exceeding 7.9 billion baht.
Conclusion
The extended elevated tollway represents a significant investment in infrastructure that promises to alleviate traffic congestion and boost economic activity in the region. With its advanced features and strategic planning, this project is poised to become a vital component of the transportation network in Thailand.