Chief Inspector Kevin Greenhow told ITV Border:
"The event has grown and grown and we're expecting in excess of 40,000 people over the course of the Fair. We're asking motorists throughout the North of England and South Scotland to be aware that there will be carriages and caravans on the road and they must be passed with caution.
Respect other road users and be patient. Last year was successful and safe, let's have the same again this year."
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Over a hundred youngsters in Coniston were let out of lessons today to join their school's long tradition of an annual fell race.
A campaign has been launched to push for the restoration of the historic Union Chain Bridge.
Rain overnight. Brighter but cooler Friday. Windy weekend