Road & rail noise map for Potters Bar
Town in Hertfordshire, Eastern
We analysed 1,278 postcodes in and around Potters Bar, Hertfordshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 30% of them (387) have mapped road noise of 55 dB or more by day, and 4% have mapped rail noise. 67% 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 EN5 5UE (road noise 75.0 dB or more by day).
Noise map of Potters Bar
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 | 17% (223) | 9% (110) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 8% (108) | 5% (67) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 4% (45) | 3% (40) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | <1% (10) | <1% (7) |
| 75.0 dB or more day · 70.0 dB or more night | <1% (1) | <1% (1) |
| Below mapped bands / not mapped | 70% | 82% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | 2% (23) | 2% (20) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 1% (18) | 1% (15) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | <1% (6) | <1% (4) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | <1% (1) | <1% (1) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 96% | 97% |
Share of the 1,278 postcodes within ~5 km of the Potters Bar centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Potters Bar
Check a specific postcode
Example searches: EN5 5UE · EN5 5SY · EN5 2HE · EN5 4PD · EN5 5SJ · EN5 5SB
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 Potters Bar?
- We analysed 1,278 postcodes in and around Potters Bar, Hertfordshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 30% of them (387) have mapped road noise of 55 dB or more by day, and 4% have mapped rail noise. 67% 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 EN5 5UE (road noise 75.0 dB or more by day).
- Where is the most road noise in Potters Bar?
- The postcodes with the highest modelled daytime levels in and around Potters Bar are EN5 5UE, EN5 5SB, EN5 5SY, based on DEFRA's 2022 model of major roads and railways.