Drivers in Wales are being urged to to not depend on sat nav gadgets when a nationwide pace restrict discount is launched on Sunday.

Most Welsh roads that presently have 30mph limits will change to 20mph - and the RAC has stated motorists ought to "pay full attention" to street indicators somewhat than digital gadgets.

First Minister Mark Drakeford has stated the change will shield lives and scale back the pressure on the NHS in Wales - saving the nation's well being service £92m a yr.

RAC head of coverage Simon Williams stated: "It's vitally important that drivers are fully aware of the arrival of the 20mph limit in Wales, and pay full attention to all road signage.

"And, till sat nav methods have been absolutely up to date, they should not depend on them to know what the pace restrict is on any specific stretch of Welsh street."

He added that compliance with 20mph limits is "quite poor" and argued that it could be "more effective to target areas where they are most needed" corresponding to residential roads or streets with excessive footfall.

"Even if compliance with new 20mph limits is poor, it should lead to an overall reduction in speeds which will have a positive effect on road safety," Mr Williams stated.

Some of the brand new pace restrict indicators in areas corresponding to Conwy, Gwynedd, Newport, Torfaen, Wrexham and Flintshire have been defaced, in response to studies.

Meanwhile, the Welsh Conservatives, who're towards the change, have highlighted authorities paperwork which estimate that elevated journey instances might price the nation's financial system between £2.7bn and £8.9bn.

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Mr Drakeford has addressed considerations over how the brand new pace limits will likely be enforced.

"It is not a change that is being introduced in order to make life difficult for people and therefore the enforcement authorities will approach it in that way," he stated.

"The approach will be a reasonable one in which we give people a chance to get used to the new regime.

"And then, because the police say, individuals who flagrantly and intentionally usually are not ready to obey the foundations that everyone else will likely be following, then that will likely be a distinct matter."

The first minister has additionally insisted that there are a number of upsides to the lowered restrict.

"It will help make our streets quieter, decreasing noise air pollution, and slower speeds will give extra individuals the boldness to cycle and stroll round their native areas and encourage kids to play open air," he stated earlier this month.