Niklas Karlsson writes:
I just got back from a holiday in Crimea, in Ukraine. There is a
trolleybus route there between Simferopol and Yalta, something like
45 miles long!

Did you ride it, or otherwise travel the same roads? I'd be interested
to know the highest speed limit on the road and whether the trolleybuses
actually reach that speed -- unless the overhead wire and the road
surface are very good, I wouldn't think trolley poles would provide
reliable contact for a road vehicle at much above city speeds.
--
Mark Brader, Toronto Rocket, 1829: The first 30 mph train.
TGV-A, 1989: The first 300 mph train.

My text in this article is in the public domain.