toilets with collection bins that will send human waste out of the shelter. Like all other NEL stations, the platforms are wheelchair-accessible. A tactile system, consisting of tiles with rounded or elongated raised studs, guides visually impaired commuters through the station. Dedicated tactile routes connect the station entrances to the platforms. Public artwork Commissioned as part of the MRT network's Art-in-Transit programme, a showcase of public artworks on the MRT network, April Ng's Slow Motion is displayed on the station walls at the concourse level. A "snapshot" of Singapore's urban life, the work is printed on thirty zinc panels, and depicts commuters going about their daily lives. Ng had previously used photo etching to create pictures of her friends as their farewell gifts; the gifts were well-received and hence she decided to use the technique again for Slow Motion. Ng used photos that showed the diversity of Singapore's culture, representing people of all races and ages. She took the photos herself, using LTA staff and the Woodleigh station construction crew as subjects, along with photos of her friends and her husband and son. The LTA wanted the Art-in-Transit works to have a "wayfinding" element to help guide commuters towards the platforms or out of the station, and Ng attempted to achieve this by making sure that some of the photos were of people moving in the appropriate direction. Ng chose zinc instead of copper because the photos she took reproduced better in zinc. The choice of zinc fit in well with the station's design, which used zinc in the roof materials. Singapore's high humidity caused problems during the photo-engraving process. To create the images, a polymer film had to be applied to the zinc plates. The humidity caused the film to stick to the plates immediately, so that it could not be adjusted. Ng was able to resolve the problem by spraying the film and plates with water before applying the film. References Bibliography External links Official website Railway stations in Serangoon Mass Rapid Transit (Singapore) stations 2011 establishments in Singapore Railway stations opened in 2011