All road users should remember trucks have blind spots. In the yellow area? The driver can’t see you.
The graphic off the above link very clearly identifies the huge challenges for truck drivers including how large blind spot areas actually are. Other road users also need reminding of the risks when in the vicinity of all vehicles from small to large – as every vehicle has their own blind spots. Also remember when travelling behind large vehicles – if you can’t see their mirrors, they can’t see you.