Millions across the UK are facing travel disruptions this bank holiday weekend due to heavy traffic, a rail strike and ongoing engineering work.
The RAC urged drivers to set off as early as possible for their holiday getaways or “be prepared to spend longer in traffic”.
Nearly 18 million drivers are planning holiday trips between Friday and Monday.
Three million journeys for holidays or day trips are expected on Friday, rising to 3.4 million on Saturday. Some 2.4 million leisure journeys are expected on Sunday and 2.7 million on Monday.
The figures are based on responses to a survey of 2,080 UK adults, projected onto the 34 million cars licensed in the UK.
The bank holiday in England, Wales and Northern Ireland on Monday is the last before Christmas.