The West Midlands has been one of the worst-affected areas by severe roadwork delays in England this year, according to new research.

Four of the 32 sets of roadworks from the Highways Agency classed as 'severe' so far in 2015 have been in this region.

These delays are estimated to have cost 30 minutes or more for motorists each journey.

Two of the 32 projects have been in Birmingham, one in Walsall and another in Sandwell and all of them have, perhaps unsurprisingly, involved the M6.

Analysis of data from the Highways Agency shows that, of England's other major cities, only Leeds has had to deal with severe delays this year.

In Birmingham, the two projects causing headaches for drivers are the closure of slip roads onto the M6 at Spaghetti Junction from the Salford Circus island on the A38.

A lane is also closed in both directions on the M6 where it meets the A38M as part of the same road same works.

This disruption is projected to continue for another four months until the end of November.

In Sandwell, there were planned major works listed for a day in March between junctions eight and seven southbound on the M6, while further north there were severe delays listed in April for planned resurfacing and work on the bridge between junctions ten and eight southbound in Walsall.