High Quality Content by WIKIPEDIA articles! The Outer Ring Road System, or more commonly known as ORRS, is a network of major arterial roads in Singapore that forms a 'ring' along the towns outside the city. The ORRS is a semi-expressway, just like the West Coast Highway. Since 1994, roads along the ORRS have been upgraded in stages to provide a smoother route to travel across the island. Construction currently in progress includes Paya Lebar Viaduct and MacRitchie Viaduct. Once the ORRS is completed, traffic volume on city-bound roads will be reduced. It also provides an alternative route for motorists to travel between the east and west of Singapore without going through the city. Since ORRS is extensively linked to expressways and other arterial roads, such as Bukit Timah Road, motorists can get from one traffic route to another easily. It also serve as alternative bypass routes in the East-West corridor for motorists to travel without going through the city centre.The first upgrading stage started in 1994. Two junctions along Farrer Road were the first to be upgraded. The upgrading project had to be carried out in stages in order to minimise disruption to traffic.

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