North - South Corridor

The North–South Expressway (Abbreviation: NSE; Chinese: 南北高速公路; pinyin: Nánbĕi Gāosù Gōnglù; Malay: Lebuhraya Utara-Selatan) will be the 11th of Singapore's network of expressways when completed. The North South Expressway will serve increasing traffic along the north-south corridor that is currently served by the Central Expressway (CTE). This new expressway was announced on 30 January 2008 as part of a major review of Singapore's transport network by the Land Transport Authority (LTA). The 21 kilometres (13 mi) expressway would cost about S$7–8 billion when fully completed by 2020 and will connect the East Coast Parkway (ECP) with the northern parts of Singapore.

On 19 Jan 2011, the government gave the green light to build the expressway between Admiralty Road West and Toa Payoh Rise. Advance work will begin in 2013, and major construction works will commence in 2015. The North South Expressway will have a total of 16 entrances and 17 exits to connect towns along the north-south corridor—Woodlands, Sembawang, Yishun, Ang Mo Kio, Bishan and Toa Payoh—with the city centre. The NSE will also provide links to existing expressways, including the Seletar Expressway (SLE), Pan-Island Expressway (PIE) and East Coast Parkway (ECP). On 15 November 2011, LTA unveiled the full alignment of the North-South Expressway.