Motorists and rail passengers have been warned to choose the time they make their journeys today wisely, to avoid getting caught up in Christmas getaway jams.
The RAC has estimated a staggering 1.9 million journeys could be made today as people rush to get home in time for Christmas eve.
Peak traffic is expected between 4pm and 6pm but the RAC is urging people to avoid the rush by hitting the roads after 8pm.
Traffic is then expected to peak again on Christmas Eve at around lunchtime.
The RAC’s Matt Dallaway said to The Sun: “Plan your journey. Everyone is a hurry to see their loved ones and friends and family, but please think about when you’re going to travel.”
The busiest routes will be the M25, M4, M5 near Bristol, the M1, M6 and M60 near Stockport.
For those travelling by train, rail services are expected to be busier than normal as passengers complete journeys before parts of the network are shut down for engineering work.
Network Rail is planning extensive engineering work across Britain between Sunday 23 and January 1.
There will be no trains on Christmas Day and a limited service will run on Boxing Day.
Reduced services are running from major stations in the capital, including London Victoria, London Liverpool Street, Euston and St Pancras International.
In the north of the country, lines will be disrupted as Northern Rail has planned cancellations in place for today, 23 December.
It’s advisable to check your journey details carefully if you’re travelling by train today.
The RAC’s Mark Souster urged motorists to carry out basic maintenance checks on their cars before hitting the roads.
He said in a statement: “It’s vitally important every driver planning a trip gives their car a once over to make sure it’s up to the job, as a single breakdown can bring some roads to a grinding halt, slowing down the Christmas getaway for all of us.
“A few moments spent checking things like fuel, oil, coolant and screenwash levels and the condition and pressure of tyres could make the difference between a stress-free journey and one plagued by a breakdown.
“It might feel like yet another thing to think about before Christmas but it’s a fact that many of the breakdowns we see are avoidable if drivers just do these few checks before they set out.”