Thailand: Greater Mekong Subregion Highway Expansion Project | Asian Development Bank

Raising Development Impact through Evaluation

Thailand: Greater Mekong Subregion Highway Expansion Project

Evaluation Document | 20 August 2018

In 2009, the government announced an economic stimulus program to revitalize the economy and help low-income people. One of its key components focused on infrastructure investment on four-lane highway expansion. Thus, the GMS Highway Expansion Project was formulated to upgrade 178 kilometers (km) of two-lane national highways to four-lane highway standard, including National Highway (NH) 12 from Phitsanulok to Lom Sak (105 km) along the East–West Economic Corridor (EWEC), and NH 359 from Phanom Sarakham to Sa Kaeo (73 km) along the Southern Economic Corridor (SEC).

The government could not fund such large investment programs and projects from domestic financial sources alone. Moreover, private sector participation in infrastructure financing in Thailand had suffered from financial and contractual problems and private investors were not ready to reenter the market. Thus, the government sought to diversify the sources of funds for these projects and approached the Asian Development Bank (ADB) as a cofinancier.

This report validates the completion report's assessment of the project. IED overall assessment: Successful