Singapore Buses route 171

Service 171 is a trunk route linking Yishun and Marina Centre, passing through Mandai Road, BKE, Bukit Panjang, Upper Bukit Timah, Bukit Timah, Scotts Road, Orchard, Dhoby Ghaut and Suntec City. It shares the Yishun – Marina Centre connection with Service 857, but plies a much longer route to serve more areas.

It is a key inter-town connection between the towns of Yishun and Bukit Panjang, via BKE and Mandai Road, with no other bus routes offering a faster route. It is also well-patronized between the Orchard area and Bukit Timah with few duplicating routes, one of which is 174.

The demand is moderate throughout the day.

Fleet
On 8 February 2016, SMB5016H (Alexander Dennis Enviro500) performed service 171 in the evening as part of the crossover slot (969S151). This bus was however withdrawn at Bukit Panjang, at Blk 217A Carpark, because it is not ready for any double decker bus deployment.

It consists of Mercedes-Benz OC500LE and MAN NL323F buses. Articulated buses are also deployed such as the 2 Mercedes-Benz O405G (Hispano Citaro) buses since September 2015.