Hundreds of musicians are heading to Cornwall for the Bugle Band Contest.
The speed limit was installed while engineers continued working on the road.
People in Bugle say there has been no difference in the amount of traffic in the village.
The family of an 18-year-old who in a crash on the A391 in Bugle pay tribute to him.
Benjamin George Lightfoot was "an adored part of the community", his family says.
Devon and Cornwall Police refers itself to a watchdog due to prior contact with the victim.
The van, which has a hob, fridge and sink, offers food, clothes and health services, organisers say.
Cornwall Council fines a driver £150 after a passenger drops takeaway rubbish out of a car.
Devon and Cornwall Police said the crash happened on Thursday evening and involved a car.
