Singapore Underground Road System

The Singapore Underground Road System, SURS (Chinese: -- ;Malay: Sistem Jalan Bawah Tanah Singapura) is a proposed road underground system in Singapore. The project will comprise two 15 km-long, 2-4 lane concentric ring tunnels around the central business district, with 8 interchanges and 33 entrances and exits. Capital cost estimated at $2.4 billion and overall construction period 15 years.

Expressways and semi-expressways of Singapore

Expressways	Ayer Rajah Expressway Bukit Timah Expressway Central Expressway East Coast Parkway Kallang–Paya Lebar Expressway Kranji Expressway Marina Coastal Expressway North–South Expressway (planned) Pan Island Expressway Seletar Expressway Tampines Expressway

Semi-expressways	Bukit Timah Road Jurong Island Highway Nicoll Highway Outer Ring Road System West Coast Highway Singapore Underground Road System

Future developments in Singapore

Skyscrapers	Marina One Asia Square DUO

Other buildings	South Beach National Art Gallery of Singapore One Shenton Way Ng Teng Fong General Hospital Changi Airport Terminal 4 Jewel Changi Airport

Other projects	Coney Island Singapore University of Technology and Design

Transport	Tuas West Extension North South Line Extension Downtown Line Thomson-East Coast Line Changi Airport Terminal Four North–South Expressway Jurong Region Line Cross Island Line Circle Line Stage 6 Downtown Line 3 Extension North East Line Extension Singapore Underground Road System

Architecture of Singapore