Nhổn-Hà Nội elevated urban rail to complete trial operation next month stockbot 0 14 03.13 13:08 https://vietnamnews.vn/society/1651871/nhon-ha-noi-elevated-urban-rail… + 6 https://vietnamnews.vn/rss/society.rss + 1 MRB said that trial operation is a simulation of line operation without passengers with the purpose of checking the operational readiness of the entire system.