Precast Segmental Technology in Bangkok - 300 km of Viaducts

In the 1980s, Bangkok was taken by a fever of demolition and reconstruction fueled by speculative real state business that marked the beginning of a cycle of explosive growth. This change was too extreme and the city sunk under a flood of air pollution, noise and the worst traffic jams of our times. This led the authorities to launch, by the end of the 1980s, one of the most ambitious programs of urban transportation in the region. The three projects presented in the article, are exceptional by their size, by the specific process that conditioned their conception and development, and by their interface within the city. The projects constructed in Bangkok during the last decade, brings an exemplary solution to the problem of construction of urban transportation infrastructure, in large metropolises of developing countries.