Can a car with a trailer travel on a lane opened to traffic in the opposite direction to normal?
A)Yes, always.
B)Yes, when it has been opened for reasons of traffic flow.
C)Yes, when it has been opened due to roadworks on the carriageway.Correct
On lanes enabled in the opposite direction to the usual one for reasons of traffic flow, only motorcycles, with or without a sidecar, and cars may travel. However, when they are enabled due to roadworks, all vehicles authorised to travel on the road may use them, including cars with trailers, unless expressly prohibited.