According to a report in Reuters, the makeshift wards are for those who experience less severe symptoms.

The train wards have started to house patients beginning July 31, said the report citing the Bangkok Metropolitan Administration (BMA).

Serving those with mild symptoms

ดัดเเปลง โบกี้ รถไฟ รับผู้ป่วย #โควิดเขียว รองรับ240คน ชั้นบนไม่ใช้เพราะผู้ป่วยต้องปีนขึ้นลง จะให้นอนด้านล่าง ติดตั้งระบบ น้ำ ไฟ มุ้งลวด เปิดเข้าพักศุกร์นี้ #โควิด19 #COVID19 #ศูนย์พักคอย pic.twitter.com/xz23rHTnwP

— ittipat pinrarod (@ittipat_tv) July 27, 2021

The report also said that the wards will most likely serve as isolation wards for patients who are on the hospital’s waiting list, for easier monitoring.

There will be 240 beds available in the trains when the authorities are done with modification.

"Some modifications are still to be done such as removing the top bunk beds, installing window nets, as well as water and electricity systems," BMA reportedly said in a statement, adding that more toilets and bathrooms will be built outside the carriages.