The latest figures released by the Freight Transport Association (FTA) have revealed that freight companies faced deteriorating road journey times between April and June this year.
According to FTA, hauliers faced more problems while on the urban road network than on motorways.
Nearly a quarter of freight companies said that the journey times on roads increased during the quarter ending at the end of June compared with the same period in 2010.
The figure was higher than the 20% firms that witnessed worsened road journey times in the first quarter of 2011.
With companies faced with costs including fuel, tax and van insurance, additional expenditure associated with being sat in traffic is especially unwelcome.
However, freight firms have also reported that rail service reliability has improved.
The FTA said that Scotland, Northern Ireland and northern England witnessed the highest increases in freight activity in the second quarter of this year, while firms in London, south-east England and the Midlands saw a fall in the activity.
The FTA said: "The outlook for the period July-September 2011 continues to show marked regional variation.
"A north-south split appears to be emerging in the pace of recovery, with London and the South East, and Wales and the West (of England) expecting activity levels to fall while the Midlands, the north and Scotland, and Northern Ireland expect an increase in activity levels."
© Press Association 2011