On the autopista, the unlined, largely unused main highway, men cleared the endless grass verges with sickles.

`The main highway is okay, but the side roads into the high country are another matter.

We were on the main highway from Calcutta to Madras.

It is also quite demanding, as you have to keep crossing a main highway into London.

He had been there for a few days when he was clocked driving at more than 100mph along the country 's main highway.