The Metropolitan Transit Rapid Authority (MRTA) has announced that it is preparing to close off parts of Phahonyothin Road at night between 22:00 – 05:00 hours every night for four years starting this August 17.
The closure will make way for the contractors to start working on the BTS Green Line extension from Morchit to Kukhot.
Source: Springnews 3/8/2015