Buckinghamshire's A4128 is 'most improved' road
A Buckinghamshire road has been named as the most improved in Britain when it comes to safety.
On a section of the A4128, fatal and serious crashes have reduced by 89%, according to this year's tracking survey by the Road Safety Foundation.
In the 6.9-mile stretch from Great Missenden to High Wycombe, there were 19 severe incidents in 2004-06 but just two in 2007-09.
However, a fatal accident occurred on the road on 18 May 2011.
A 62-year-old woman died after the car she was driving was involved in a collision with a heavy goods vehicle between Prestwood and Great Kingshill.
The incident would not have been included in the most recent figures.
The foundation said the road had previously been one of the most dangerous.
The single carriageway road is a busy route connecting local villages and carries high volumes of commuter traffic.
The safety measures put in place include new lower speed restrictions in some areas, improving signing and using solar-powered road studs to improve night-time visibility.
Caroline Starrs, from the Road Safety Foundation, said that as it had not been possible to change the layout of the road, speed restrictions were an effective way of improving safety.
"They've made sure that the speed suits the nature of the road," she said.
"A lot of these rural roads have speed limits of 60mph and if somebody crashes at that speed then a fatality is likely to happen.
"Unless the engineering layout of these roads can be improved then setting a speed limit that's lower is the best option."
The Road Safety Foundation said it hoped other authorities would be encouraged to make similar changes, adding that it aimed to show that implementing simple measures like speed restrictions are an affordable investment.
RSF director Dr Joanne Hill said: "These are practical, largely inexpensive solutions. Much of this remedial work can be done as part of routine maintenance."