Road & rail noise map for Crosby
Town in Sefton, North West
We analysed 990 postcodes in and around Crosby, Sefton against DEFRA's Strategic Noise Mapping (Round 4, 2022). 23% of them (224) have mapped road noise of 55 dB or more by day, and 3% have mapped rail noise. 75% 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 L22 0LH (road noise 70.0–74.9 dB by day).
Noise map of Crosby
How many postcodes are affected?
Road noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | 16% (160) | 3% (30) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 5% (53) | 3% (31) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | <1% (9) | <1% (2) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | <1% (2) | 0% (0) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 77% | 94% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | <1% (6) | 2% (20) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 2% (20) | <1% (1) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 0% (0) | 0% (0) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | 0% (0) | 0% (0) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 97% | 98% |
Share of the 990 postcodes within ~5 km of the Crosby centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Crosby
Check a specific postcode
Example searches: L38 6JH · L22 0LH · L22 1RQ · L22 0LD · L22 0AD · L21 1ER
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 Crosby?
- We analysed 990 postcodes in and around Crosby, Sefton against DEFRA's Strategic Noise Mapping (Round 4, 2022). 23% of them (224) have mapped road noise of 55 dB or more by day, and 3% have mapped rail noise. 75% 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 L22 0LH (road noise 70.0–74.9 dB by day).
- Where is the most road noise in Crosby?
- The postcodes with the highest modelled daytime levels in and around Crosby are L22 0LH, L38 6JH, L22 4QF, based on DEFRA's 2022 model of major roads and railways.