Mandatory With-Flow Cycle Lane

Image of Blank Signs   [Traffic Signs⇐]
A segregated lane for pedal cycles

Mandatory
cycle lane
 ahead
   Mandatory
cycle lane
 
     End of
cycle lane
(Optional)
     End of
cycle lane
 
 
           

Marked by the entry sign and the continuous white line on the road.
Pedal cycles must stay in the cycle lane and cars must stay out of it.
The end of the cycle lane may or may not be marked on the road.
There may or may not be a similar cycle lane on the other side of the road
  to separate cars and cycles travelling in the opposite direction.