After graduating from Imperial College, London, UK in the field of structural civil engineering, Mr Sirilak Chandrangsu, Second Assistant Engineer of Construction Sub-Division, Construction Division, Department of State Highways came back to work for the government for a period before he was awarded a scholarship from the International Cooperation Agency – ICA of the United States of America to further his PhD studies in traffic engineering at Ohio State University during 1957 – 1958 through contact made by the International Road Federation (IRF). When Dr. Sirilak completed his studies and returned to Thailand, IRF offered to award scholarships to Thai graduate students to further studies in highway engineering in the US for one academic year on the condition that the scholarship will be awarded through any association in Thailand dealing with highways. The scholarship was offered through the Department of Highways. There was then an effort to establish a contact centre by companies, shops and engineers doing highway-related works to promote the exchange of both domestic and international knowledge and experience. On 27 December 1963, Lieutenant General Sathian Pojananand, Director-General of the Department of State Highways, submitted an application to the Police Special Branch Division to register the establishment of ‘Road Association of Thailand’ having the initial place of establishment at the Department of State Highways, Sri Ayudhya Road, Phyathai District, Bangkok.