A overview has been ordered by Rishi Sunak of divisive low visitors neighbourhoods.

The prime minister's move comes as inexperienced insurance policies and the trail to net zero promise to be a key battleground within the run as much as the subsequent common election.

The Tories narrowly held Boris Johnson's former seat after tapping into native issues concerning the growth of London's ultra-low emissions zone (ULEZ) by town's Labour mayor Sadiq Khan.

Read extra:The Conservatives' green policies - and what could be scrapped

But nature campaigners have warned they'll "not stand by" whereas politicians use the surroundings as "a political football".

Mr Sunak is because of meet energy bosses this week to set out his plans for the UK's fossil fuels and inexperienced industries.

So what are low visitors neighbourhoods (LTNs) and why are they controversial?

Designed to encourage biking and strolling by limiting driving in facet roads, the rollout of LTNs was paved by the federal government in 2020 with £225m in funding. They had been applied in areas from spring of that 12 months.

Schemes embrace segregated cycle lanes, wider pavements and shutting roads to motor visitors.

Read extra:LTNs are about 'taking back control' from WhitehallStarmer told to 'get off the fence' and challenge Sadiq Khan on ULEZ

The key purpose is to scale back air air pollution, noise nuisance and visitors accidents by getting folks out of their automobiles and tackling rat-running, the place folks use residential streets as brief cuts.

How do they work?

LTNs use boundaries, bollards, highway indicators, and planters to limit automobiles, vans, and different autos, whereas permitting pedestrians and cyclists by.

How many are there?

There is not any official public tally however it has beforehand been reported there are round 300 schemes already operating or deliberate throughout the nation, together with London, Bristol, Oxford and Newcastle.

Other cities similar to Manchester, Birmingham and Sheffield have additionally launched LTNs.

So LTNs work and are standard?

It relies upon who you speak to with the success of schemes disputed.

Supporters argue the measures have minimize noise and air air pollution, inspired folks to go for extra wholesome and environmentally pleasant kinds of journey, strengthened communities and helped native companies with the additional footfall.

But critics imagine whereas they could have improved areas the place they're positioned, they push the issues elsewhere.

This contains creating congestion and inflicting longer journeys, producing extra polluting emissions.

Many LTNs are additionally not recognised by satnav resulting in visitors snarl-ups.

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Although some declare LTNs make it simpler for emergency providers to achieve their vacation spot, others argue they do the precise reverse, hindering the response to 999 calls as autos can not get by.

It is not only sensible issues, Conservative MP Nick Fletcher has beforehand steered the visitors management measures had been a part of an "international socialist concept" which might take away private liberties.

Some folks have been so infuriated that they've vandalised LTN measures similar to setting hearth to planters blocking roads.

What about ULEZ?

The Ultra Low Emission Zone - extra generally often known as ULEZ - goals to scale back air air pollution in London and different large cities by charging heavy polluting autos to drive on central roads.

Mr Khan needs to expand the zone to the borders of the capital, however he is been met with fierce opposition.

Even Labour chief Sir Keir Starmer has referred to as on his colleague to "reflect" on his decision within the wake of the celebration's defeat on the Uxbridge and South Ruislip by-election.