Commuters from both Malaysia and Singapore share the same frustration over the overcrowded bus service 856.

856 plies between Woodlands Temporary Interchange and Yishun Interchange via Woodlands Train Checkpoint, which is also known as the Woodlands Causeway.

Many Malaysian workers from Singapore will rely on Bus services 856, 950 or TS1 from Marsiling. However, 950 will usually be packed to the door and is therefore unable to stop at the bus stop and TS1 is a privately-operated service, which charges a higher fare.