Road & rail noise map for Great Harwood
Town in Lancashire, North West
We analysed 519 postcodes in and around Great Harwood, Lancashire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 37% of them (191) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 63% 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 BB6 7DE (road noise 65.0–69.9 dB by day).
Noise map of Great Harwood
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 | 25% (132) | 5% (28) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 10% (51) | 5% (24) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 2% (8) | <1% (1) |
| 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 | 63% | 90% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | <1% (1) | 0% (0) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 0% (0) | 0% (0) |
| 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 | 100% | 100% |
Share of the 519 postcodes within ~5 km of the Great Harwood centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Great Harwood
Check a specific postcode
Example searches: BB6 7RE · BB6 8BU · BB6 7DE · BB6 7QB · BB6 8BT · BB6 8BX
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 Great Harwood?
- We analysed 519 postcodes in and around Great Harwood, Lancashire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 37% of them (191) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 63% 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 BB6 7DE (road noise 65.0–69.9 dB by day).
- Where is the most road noise in Great Harwood?
- The postcodes with the highest modelled daytime levels in and around Great Harwood are BB6 7DE, BB6 7QB, BB6 8BU, based on DEFRA's 2022 model of major roads and railways.