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Many parts of Singapore, including islands such as Sentosa and Jurong Island are accessible by road. The other major form of transportation within Singapore is rail: the Mass Rapid Transit which runs the length and width of Singapore, and the Light Rail Transit which runs within a few neighbourhoods.

Singapore’s road network connects all corners of the island with more than 9,000 land-km of roads and expressways. LTA builds, manages and maintains this extensive network and infrastructure. With roads already occupying 12 per cent of our total land area, LTA takes into account the projected growth in both existing and future areas to plan road use carefully.

To achieve a vision of a car-lite nation,LTA prioritise movement for the masses, with priority lanes for buses and efforts to improve first-and-last-mile connectivity to our public transport hubs.

LTA also manages vehicle ownership and usage to ensure that the traffic flows smoothly and efficiently. 

The Expressways of Singapore is a network of controlled-access highways that spans throughout the city-state of Singapore. Construction of the system was authorized when construction of the Pan Island Expressway began in 1962. All of them are dual carriageways with grade-separated access. They usually have three to four lanes in each direction, although there are two-lane carriageways at many expressway intersections and five-lane carriageways in some places.

Construction on the first expressway, the Pan Island Expressway, was completed in 1969. As of 2014, there are ten expressways in Singapore totalling 163 kilometres (101 mi).

In addition to the main expressways, there are also five semi-expressways: Bukit Timah Road, Jurong Island Highway, Nicoll Highway, the Outer Ring Road System (ORRS) and West Coast Highway. These semi-expressways are scaled down versions of the main expressways. Semi-expressways do not have a uniform speed limit through its entire length, and some sections still feature traffic light controlled junctions, such as the eastern section of the ORRS, some of Bukit Timah, the southern section of the Jurong Island Highway and the western sections of Nicoll Highway and West Coast Highway. Still, just like expressways, semi-expressways allow motorists to travel quickly from one urban area to another with the use of viaducts, overpasses and tunnels.


Like all other global controlled-access expressway network, there are no traffic lights on the expressways. At an interchange with another road, an expressway is connected to it via slip roads. This allows traffic to change routes without having to stop or slow down. Due to the need to conserve space in land-scarce Singapore, there are no cloverleaf interchanges on the entire island as they are too large. Instead, traffic efficiency and land space are maximized by having traffic lights on terrestrial roads, as well as the usage of interchanges such as stack interchanges. The most common forms of highway-road or highway-highway intersections are single-point urban, diamond, and trumpet interchanges. Newer expressways such as the Kallang-Paya Lebar Expressway and the future North South Corridor uses on-ramps and off-ramps to conserve space even further and minimize disruption to the road system, through the construction of viaducts and tunnels.

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