A surprise surge in serious injury crashes on a Norwich road is to be investigated further.

https://infogr.am/killed_or_seriously_injured_on_norfolks_roads

Norfolk's road casualty reduction partnership heard how figures for people killed or seriously injured on a stretch of the A11 from Thickthorn to the Daniels Road roundabout had shot up over the past 12 months.

In 2014 there were nine such crashes, but last year that number had soared to 26.

The increase was discussed after Jonathon Childs, UKIP county councillor, asked whether the dualling of the A11 had contributed to an increase in crashes.

Dave Stephens, from Norfolk County Council, said: 'Generally speaking the route is operating well within the expected rates of killed or seriously injured casualties.'

But he added the point at which the A11 became Newmarket Road in Norwich was a worry.

He said: 'The situation we are concerned about is the section from Thickthorn to the outer ring road, where the numbers have gone up very significantly.

'It's gone up from nine to 26 in just one year and we are starting to do detailed analysis of the cause.

'It's hard to understand what is happening there.

'It's not a section of road where there has been significant changes which have taken place and the traffic flow has not changed considerably.

'What we do know is that a large number of the casualties are in the vulnerable groups.'

He added a new crossing was due to be installed on Newmarket Road as part of the city Push The Pedalways project.