How Noisy?

Road & rail noise map for Kirkby

Town in Knowsley, North West

We analysed 2,124 postcodes in and around Kirkby, Knowsley against DEFRA's Strategic Noise Mapping (Round 4, 2022). 21% of them (443) have mapped road noise of 55 dB or more by day, and 0% have mapped rail noise. 79% of postcodes have no mapped road or rail noise at all — though that reflects major-source modelling, not guaranteed quiet. The highest modelled level we found is at L32 4SH (road noise 70.0–74.9 dB by day).

Noise map of Kirkby

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55-59 dB60-64 dB65-69 dB70-74 dB75 dB+Unshaded = below the mapping threshold or not modelled (not necessarily quiet).

How many postcodes are affected?

Road noise

BandDay (LAeq,16h)Night (Lnight)
55.0–59.9 dB day · 50.0–54.9 dB night16% (344)5% (104)
60.0–64.9 dB day · 55.0–59.9 dB night4% (83)2% (44)
65.0–69.9 dB day · 60.0–64.9 dB night<1% (15)<1% (9)
70.0–74.9 dB day · 65.0–69.9 dB night<1% (1)0% (0)
75.0 dB or more day · 70.0 dB or more night0% (0)0% (0)
Below mapped bands / not mapped79%93%

Rail noise

BandDay (LAeq,16h)Night (Lnight)
55.0–59.9 dB day · 50.0–54.9 dB night0% (0)0% (0)
60.0–64.9 dB day · 55.0–59.9 dB night0% (0)0% (0)
65.0–69.9 dB day · 60.0–64.9 dB night0% (0)0% (0)
70.0–74.9 dB day · 65.0–69.9 dB night0% (0)0% (0)
75.0 dB or more day · 70.0 dB or more night0% (0)0% (0)
Below mapped bands / not mapped100%100%

Share of the 2,124 postcodes within ~5 km of the Kirkby centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.

Noisiest postcodes in and around Kirkby

  • L32 4SH road 70.0–74.9 dB by day
  • L31 1LE road 65.0–69.9 dB by day
  • L9 9ER road 65.0–69.9 dB by day
  • L9 9DB road 65.0–69.9 dB by day
  • L32 4SD road 65.0–69.9 dB by day

Check a specific postcode

Example searches: L32 4SH · L31 1FQ · L10 6NF · L11 2ST · L10 1LB · L11 3DN

What this data does — and doesn't — cover

  • Modelled, not measured.These are DEFRA's computer-modelled estimates (Round 4, 2022), not microphone readings at your door.
  • Major sources only. The model covers major roads, major railways and large urban areas. Smaller local roads, neighbours, pubs, building sites and aircraft are not included.
  • No mapped noise ≠ quiet. If a location shows no band, it means it falls outside the mapped contours — not that it is silent.
  • 2022 snapshot.New roads, developments or traffic changes since 2022 won't show. The next DEFRA round is due around 2027.

More detail on the methodology page.

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Nearby areas

Frequently asked questions

How noisy is Kirkby?
We analysed 2,124 postcodes in and around Kirkby, Knowsley against DEFRA's Strategic Noise Mapping (Round 4, 2022). 21% of them (443) have mapped road noise of 55 dB or more by day, and 0% have mapped rail noise. 79% of postcodes have no mapped road or rail noise at all — though that reflects major-source modelling, not guaranteed quiet. The highest modelled level we found is at L32 4SH (road noise 70.0–74.9 dB by day).
Where is the most road noise in Kirkby?
The postcodes with the highest modelled daytime levels in and around Kirkby are L32 4SH, L31 1LE, L9 9ER, based on DEFRA's 2022 model of major roads and railways.