According to Google street view, the road had 3 general car lanes per direction up to and including Nov 2016. Shortly after, the middle lane of each direction

According to Google street view, the road had 3 general car lanes per direction up to and including Nov 2016. Shortly after, the middle lane of each direction became a bus-only lane, but this was implemented with temporary road modifications. (So each direction has 1 bus lane and 2 car lanes.) The middle part of the road was rebuilt from 2019 to 2020, making this feature permanent.