Construction of four sections of a double-track rail route under joint development by Thailand and China is to start this year, according to plans announced by Transport Minister ACM Prajin Juntong on Thursday. Two sections are expected to be ready in 2017 and the others in 2018, he said. The minister was speaking after a preparation meeting for talks with Chinese counterparts scheduled for Tuesdayand Wednesday in Bangkok on the joint development of the double-track railways