Some major urban highways well separated from pedestrians have higher limits of 60-80 km/h.
Also, he said, the glare of background lighting makes street lights more needed on urban highways.
He said the road "appears to be the first urban elevated highway in the country."
Most of the road is an urban four-lane undivided highway, passing through residential and commercial properties.
The first urban highways have been built also in the 1960s.
Another $588 million would be earmarked for spending on urban highways.
A lucky few even managed to take the car out for a test drive around the Docklands financial district's urban highways.
For example, residents living next to urban highways will benefit from noise barriers.
Most of the route is an urban two-lane highway.
He believes that more rural roads should be built rather than "urban highways."