TEL4 connects Singapore’s East Coast communities

Enhancing station design to increase value

Bayshore Station, the last station on TEL4, brings rail connectivity to schools and residential areas. The original concept design featured an underground stacked station requiring extensive underground excavation. We held a value-engineering workshop with various agencies including LTA and SAA Architects to assess the design. Together we generated ideas and proposed solutions to increase the project’s value.  
 
Our team assessed the site’s challenges and proposed revised alignment which would allow space for a shallower island-platform station configuration requiring less excavation. At this new location, we could also design the excavation using the simplest method, open cut, which significantly reduced construction time and cost. The island-platform design has one single platform positioned between two tracks, improving wayfinding, and providing easy passenger transfers between the two tracks. It provides passengers with an easier travel experience. 
 
This station will serve existing and future developments such as Bayshore Park and Econ Medical Centre. In a first for Singapore, Bayshore Station and Marine Terrace Station provide underground parking for around 200 bicycles, offering cyclists a more convenient commuting journey.

Unique tunnelling approach

We designed twin bored tunnels to connect the line’s last four stations which run under existing infrastructure. At Marine Terrace and Siglap Stations, the bored tunnels needed to cross beneath the proposed underground subway connecting the station and entrance. 

We designed an L-shaped diaphragm wall panel for the proposed subway undercrossed by the bored tunnel. This wall panel allowed the bored tunnel to cross to pass beneath the proposed subway without needing to cut through the thick diaphragm wall, resulting in safer and efficient working conditions.