Motorists are advised to be aware of potential disruption and delays in the Royal Hillsborough area.
A one-way system is in place in the town, and increased footfall is expected following the death of Her Majesty Queen Elizabeth II.
King Charles is leading tributes to the Queen, as the UK mourns the death of its longest-serving monarch.
The Queen died on Thursday aged 96.
Lizz Truss, who became prime minister this week called her “the rock upon which modern Britain was built.”