A report by Highways England has shown that traffic jams have been made worse on dozens of major roads in England by a project to tackle bottlenecks. Click here to read the full story.
Evaluation of the first year of Highways England's (HE) £317m programme showed rush hour benefits but delays at other times.
The A5 and A49 junction in Shropshire, parts of the M6 in Merseyside and M40 in Oxfordshire were the most affected.
The RAC said it was "very disappointing" but some schemes had led to fewer road casualties.
The pinch-point programme was started in 2011 to relieve congestion, stimulate growth in local economies and improve safety.