What is the term for a road that is specifically designed for high-speed traffic?

Veronica, some highways charge toll

Yes highways are for fast traffic but during certain times there slow goings as cars and trucks are so slow because of so many commuters.

In the UK, a 'Highway' might be limited to 30mph - high speed traffic travel is by 'motorway'.

Be wise, what,s the different between a freeway and a highway?

What’s the difference between a freeway and a highway?