Which Liverpool roads will have the new high-tech pollution sensors?

Major routes in Halton, Knowsley, Liverpool, Sefton, St Helens and Wirral will feature the new technology.

A high-tech pollution sensor on a traffic light. Image: LCR

More than 30 air quality sensors are to be installed across the Liverpool City Region road network in a bid to reduce congestion and emissions.

The technology will be linked to traffic signals and located on major routes in Halton, Knowsley, Liverpool, Sefton, St Helens and Wirral.

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The sensors will give local authorities access to real-time updates on air quality on key roads for the first time.

The technology will also be linked to Urban Traffic Control systems and signals that can be used to manage and divert traffic when pollution reaches elevated levels.

Funding for the project is being delivered through the region’s Transforming Cities Fund.

The devices will be fitted to traffic lights on 37 key road areas, including the Strand, Dunnings Bridge Road in Sefton and the Bridgewater Expressway in Halton.

A Liverpool City Region spokesperson said the roads weren’t selected specifically because they are in areas with highest air pollution but because they are major road corridors across the region.

A high-tech pollution sensor on a traffic light. Image: LCR

The sensors will monitor harmful gases and particles then the data will be sent live to local authority highways management teams as they control traffic signals and electronic signage on major corridors.

This will allow traffic flow to be managed, and even diverted, to help avoid serious congestion and reduce harmful emissions particularly in built up areas most affected by air pollution.

Traffic pollution contributes to overall poor air quality which is estimated to be responsible for an average of 800 deaths every year in the Liverpool City Region.

When will the sensors be installed?

The sensors, which are set to be installed by spring 2022, are part of Metro Mayor Steve Rotheram’s plan to deliver a cleaner, more sustainable London-style transport network that will help the Liverpool City Region meet a target of becoming net zero carbon by 2040.

Which roads have the new sensors?

1 Arrowe Park Road, Upton

2 Poulton Road, Wallasey

3 Wallasey Road, Liscard

4 Chester Street, Birkenhead

5 New Chester Road (A41) , Eastham

6 Moor Lane, Thornton

7 Crosby Road South, Crosby

8 Southport Road, Bootle

9 Dunnings Bridge Road, Netherton

10 Dunnings Bridge Road, Bootle

11 Northway, Maghull

12 Rimrose Road, Bootle

13 A49 Church Road, Newton

14 A58 Borough Rd/Prescot Rd, St Helens

15 A58 Linkway West, St Helens

16 A580 East Lancashire Rd, Blackbrook

17 M62 J7, Rainhill

18 Kingsway, Widnes

19 Deacon Rd, Widnes

20 Liverpool Rd, Widnes

21 Bridgewater Expressway, Runcorn

22 Busway, Runcorn

23 Cronton Road, Tarbock

24 County Road, Kirkby

25 Hall Lane, Kirkby

26 County Road, Kirkby

27 Old Rough Lane, Kirkby

28 A5080 Edge Lane, Liverpool

29 A561 Speke Road, Liverpool

30 Everton Valley, Liverpool

31 A5038 Lime Street, Liverpool

32 A5058 (Queens Drive), Liverpool

33 A59 (Rice Lane), Liverpool

34 A41 (Queensway Tunnel), Liverpool

35 A5036 (The Strand), Liverpool

36 A5047 (London Road / Pembroke Place), Liverpool

37 A57 (Kensington), Liverpool


Mayor Rotheram said: “Air pollution has a really damaging effect on the environment and on people’s health. This new technology will allow us to monitor air quality along congested routes in real time and enable local councils to reduce congestion.

“Too many journeys across our region are currently taken by car. I’m working to build a modern London-style transport network that will give people a sustainable alternative to the car. It will make using public transport to get around our region cheap, reliable and quick.”

But some local residents have expressed their doubts about how the system will work.

Green campaigner and avid cyclist Edward Lamb, from Wirral, questioned whether the traffic would be diverted to residential streets.