The Red Line commuter train service will fully open in December, marking the end of free rides available since August.

Currently serving 6,105 people a day, the electric train line, due in large part to it terminating at the Bang Sue Grand Station, the Bangkok area’s biggest Covid-19 vacciantion center.

Transport Minister Saksayam Chidchob said the service made its soft opening on Aug. 2 and has been free to ride since then. Traffic is growing 13 percent a month, he said.

Free rides will come to an end with the December official opening. Fares will be frozen for three years at 12 baht plus 1.5 baht a kilometer traveled.

The service will join a common ticketing system with EMV compatibility which will also cover passenger buses and MINE Smart Ferry as well as the Blue Line and the Purple Line in February.