1The metalled road was smoother and safer to drive on than the dirt track it replaced.
2Is the entire highway metalled, or are there still sections of gravel road?
3The local government decided to metal the main street to reduce dust and improve traffic flow.
4If the road were metalled, it would be easier to maintain and less prone to potholes.
5There are plans to metal the rural roads in the area to facilitate faster and safer travel.