We have made significant investments in our road infrastructure over the years. Today, there are 8,774 lane-km of roads in Singapore, which takes up some 12  per cent of the land in Singapore. We will continue to build new roads and expressways, but this expansion can be expected to decline because of the scarcity of land and the high road building costs. For the last 15 years, the rate of road growth has been approximately 1 per cent a year. Over the next 10 to 15 years, road growth is expected to trend down to about half that rate, at 0.5 per cent per annum.

Nevertheless, there is still a need to build new road infrastructure to cater to the travel demands of new developments and residential sites. However, the limited land resources means that future major roads will likely be build underground, which will be more expensive.

One such road project that was completed recently is the 12-m Kallang-Paya Lebar Expressway (KPE), which features a 9km stretch that is entirely underground. Advancing forward, LTA will be embarking on other major road projects, such as the construction of the 5km Marina Coastal Expressway and 21km North-South Expressway.