Two former road traffic police have prepared a document as part of a bid to reduce the number of crashes on Norwich's Northern Distributor Road (NDR).
New police figures have revealed there have been 61 crashes which resulted in injury or fatalities since the road, also known as the Broadland Northway, completely opened in April 2018.
Of those , one was a fatality - the death of 49-year-old David Powell, from Attleborough.
Mel Lacey and Pete Boddy have compiled a document which they have circulated to parish councils, including Rackheath, outlining some of the problems as well as potential remedies.
It is hoped the document will be shared with other parish councils as well as Norfolk County Council.
Mr Lacey said: "In our opinion, there are a number of modifications that can be made by Norfolk County Council.
"We strongly recommend a series of transverse white or yellow lines being painted across the carriageway on the approach to all roundabouts.
"The gaps between the lines should gradually decrease. This will give drivers the impression their vehicle needs to slow even more.
"The word ‘SLOW’ should be painted on all lanes preceding the transverse lines."
Mr Boddy said: "Quite frankly, three lanes on the roundabouts confuse many drivers and this confusion often leads to collisions.
"The lanes need to be reassessed and, in my opinion, reduced to two.
"It is very easy to blame poor driving, but all the drivers who use the NDR must surely drive elsewhere? And where else in Norfolk do we see this level of collisions?"
A Norfolk County Council spokesman, said: “The Broadland Northway has been subject to safety audits during its development and post construction.
"This is a process carried out by qualified road safety auditors to national guidelines and has resulted in safety improvements to the scheme both through the design process and post construction.
"Improvements include revised road markings, additional countdown markers and signage, get in lane signs, and extra SLOW markings on roundabout approaches.
"Over the past year, we have seen a falling trend in personal injury accidents which will be partly due to the reduced level of traffic relating to Covid-19 restrictions.”
The data, obtained following a Freedom of Information (FoI) Act request to Norfolk Constabulary by Mr Boddy, also showed nine of the 61 crashes resulted in serious injuries.
There were slight injuries in 51 of the crashes.
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