Walmers Avenue Higham, Gravesham
65 addresses across 2 postcodes (ME3), about 570 m (0.4 miles) long, classed as a local road. USRN 15700843.
- Sales: 52 recorded sales since 1995; in 2025 the median was £601,000 across 3 sales.
- Prices and rents: A typical home in Gravesham cost £342,498 in August 2026 (+0.3% on a year); private rents averaged £1,345 a month.
- Energy: 31 homes have an energy certificate (B: 1, C: 10, D: 14, E: 6).
- Flood: No address on its postcodes is in an area at high or medium risk of flooding from rivers, the sea or surface water.
- Recorded floods: No recorded flood covers the centre of any of its postcodes.
- Radon: Up to 1 to 3% of homes in the 1 km squares around it are estimated to be at or above the radon Action Level.
- Traffic: The busiest counted road within 500 m (0.3 miles), the A226, carries 12,161 motor vehicles a day on average (2025).
- Council tax: Most homes around it are in council tax band E; Band D in Gravesham costs £2,408 a year in 2026-27.
- Broadband: Gigabit broadband is available to 95% to 100% of premises.
- Transport: The nearest railway station is Higham, about 1.6 km (1 mile) away in a straight line.
- Green space: The nearest park or garden, Shorne Wood Country Park, is about 1.9 km (1.2 miles) away.
- Air: Background air pollution in 2024 was 10.2 µg/m³ of nitrogen dioxide and 7.4 of PM2.5, within UK legal limits.
- Height: Its addresses are 55 to 70 m above sea level.
- Noise: 5 of its 65 addresses are modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Court View Surgery, about 3.5 km (2.2 miles) away.
- People: About 310 people lived in the census areas around it in 2021; 97% of households owned their home and 32% of adults held a degree or other higher qualification.
- Crime: 11 crimes were recorded within 250 m between September 2025 and August 2026, most often other theft.
- Road safety: No collisions in which someone was hurt were reported on and around it in 2021 to 2025.
£9.99 The Street Dossier Full Report for a home on Walmers Avenue: its own records, questions to ask the seller and everything on this page, in one PDF. Choose the home
House sales on this street
| Year | Sales | Median price | Lowest | Highest |
|---|---|---|---|---|
| 2025 | 3 | £601,000 | £455,000 | £725,000 |
| 2024 | 2 | £430,000 | £410,000 | £450,000 |
| 2023 | 2 | £513,750 | £380,000 | £647,500 |
| 2022 | 2 | £650,000 | £550,000 | £750,000 |
| 2021 | 4 | £485,000 | £420,000 | £735,000 |
| 2020 | 1 | £610,000 | £610,000 | £610,000 |
| 2019 | 2 | £696,000 | £557,000 | £835,000 |
| 2018 | 1 | £495,000 | £495,000 | £495,000 |
| 2017 | 3 | £345,000 | £323,250 | £415,000 |
| 2016 | 2 | £349,000 | £340,000 | £358,000 |
| 2015 | 2 | £400,000 | £390,000 | £410,000 |
| 2014 | 1 | £360,000 | £360,000 | £360,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 7 Dec 2023 | 1 ME3 7EJ | Semi-detached | £380,000 | |
| 7 Jun 1999 | 1 ME3 7EJ | Semi-detached | £130,000 | |
| 29 Sep 2021 | 2 ME3 7EJ | Detached | £545,000 | |
| 14 Aug 2013 | 2 ME3 7EJ | Detached | £380,000 | |
| 6 Mar 1995 | 2 ME3 7EJ | Detached | £105,000 | |
| 5 Aug 2021 | 4 ME3 7EJ | Detached | £420,000 | |
| 10 Sep 2009 | 5 ME3 7EJ | Semi-detached | £165,000 | |
| 31 Mar 2016 | 8 ME3 7EJ | Semi-detached | £358,000 | |
| 22 Apr 2016 | 9 ME3 7EJ | Detached | £340,000 | |
| 7 Sep 2011 | 9 ME3 7EJ | Detached | £225,000 | |
| 5 Mar 2008 | 12 ME3 7EJ | Detached | £350,000 | |
| 9 Feb 2024 | 13 ME3 7EJ | Detached | £450,000 | |
| 18 Nov 2011 | 14A ME3 7EJ | Detached | £335,000 | |
| 20 Feb 1997 | 15 ME3 7EJ | Detached | £110,000 | |
| 6 Aug 2015 | 16 ME3 7EJ | Detached | £390,000 | |
| 19 Dec 2025 | 17 ME3 7EJ | Detached | £455,000 | |
| 16 Jun 2023 | 18 ME3 7EJ | Semi-detached | £647,500 | |
| 30 Aug 1996 | 18 ME3 7EJ | Semi-detached | £92,000 | |
| 22 Feb 2017 | 20 ME3 7EJ | Detached | £345,000 | |
| 26 May 2021 | 22 ME3 7EJ | Detached | £425,000 | |
| 12 Dec 2019 | 26 ME3 7EH | Detached | £835,000 | |
| 29 Mar 2001 | 26 ME3 7EH | Detached | £215,000 | |
| 4 Jul 2014 | 28 ME3 7EH | Detached | £360,000 | |
| 21 Jan 2005 | 28 ME3 7EH | Detached | £323,000 | |
| 4 Jun 2025 | 29 ME3 7EH | Detached | £601,000 | |
| 27 Mar 2025 | 30 ME3 7EH | Detached | £725,000 | |
| 19 Aug 2011 | 30 ME3 7EH | Detached | £356,000 | |
| 11 Jul 2007 | 31 ME3 7EH | Detached | £500,000 | |
| 5 Jul 2019 | 33 ME3 7EH | Detached | £557,000 | |
| 16 Dec 2011 | 34 ME3 7EH | Detached | £267,000 | |
| 21 Mar 2001 | 34A ME3 7EH | Detached | £230,000 | |
| 19 Oct 2018 | 35 ME3 7EH | Detached | £495,000 | |
| 24 Jul 2015 | 35 ME3 7EH | Detached | £410,000 | |
| 27 Nov 1998 | 36 ME3 7EH | Detached | £120,000 | |
| 27 Mar 2020 | 38 ME3 7EH | Detached | £610,000 | |
| 26 Aug 2022 | 39 ME3 7EH | Detached | £550,000 | |
| 2 Feb 2007 | 39 ME3 7EH | Detached | £352,000 | |
| 13 Dec 1999 | 39 ME3 7EH | Detached | £215,000 | |
| 30 Jun 2017 | 41 ME3 7EH | Detached | £415,000 | |
| 18 Oct 1996 | 41 ME3 7EH | Detached | £95,000 | |
| 25 Aug 2005 | 43 ME3 7EH | Detached | £249,995 | |
| 2 Apr 2024 | 45 ME3 7EH | Semi-detached | £410,000 | |
| 16 Mar 2017 | 51 ME3 7EH | Semi-detached | £323,250 | |
| 11 Dec 2006 | 52 ME3 7EH | Detached | £415,000 | |
| 27 Mar 1996 | 54 ME3 7EH | Detached | £124,450 | |
| 30 Sep 1999 | 55 ME3 7EH | Detached | £265,000 | |
| 15 Mar 2022 | 58 ME3 7EH | Detached | £750,000 | |
| 29 Jun 2011 | 58 ME3 7EH | Detached | £367,500 | |
| 7 Feb 2005 | 59 ME3 7EH | Detached | £381,500 | |
| 10 Apr 1996 | 61 ME3 7EH | Detached | £34,950 | |
| 27 Aug 2021 | THE BANKS ME3 7EH | Detached | £735,000 | |
| 1 Nov 2002 | THE BANKS ME3 7EH | Detached | £249,000 |
House prices and rents in Gravesham
A typical home in Gravesham cost £342,498 in August 2026, 0.3% more than a year before. That is 7% more than five years earlier and 23% more than ten years earlier.
| Home | Typical price, Aug 2026 |
|---|---|
| Detached | £611,046 |
| Semi-detached | £395,086 |
| Terraced | £312,316 |
| Flat or maisonette | £172,575 |
| Bought by a first-time buyer | £295,313 |
Private renters in Gravesham paid £1,345 a month on average in September 2026, 5% more than a year before. That is 35% more than five years earlier.
| Home | Average rent a month, Sep 2026 |
|---|---|
| One bedroom | £915 |
| Two bedrooms | £1,209 |
| Three bedrooms | £1,476 |
| Four or more bedrooms | £2,096 |
Energy performance certificates
31 homes with a current certificate; median floor area 128 m². Most common: Bungalow, detached (14); House, detached (13); Bungalow, semi-detached (3). Built: 1950-1966 (14); 1967-1975 (6); 1976-1982 (3). Tenure at assessment: owner-occupied (27); rented (private) (1).
Each home's certificates and sales (31 addresses)
- 1 Walmers Avenue, Higham
- 2 WALMERS AVENUE, HIGHAM
- 4 WALMERS AVENUE, HIGHAM, ROCHESTER
- 8 Walmers Avenue, Higham
- 9, Walmers Avenue, Higham
- 12 Walmers Avenue, Higham
- 13 Walmers Avenue, Higham
- 14a, Walmers Avenue, Higham
- 16, Walmers Avenue, Higham
- 17 Walmers Avenue, Higham
- 18 Walmers Avenue, Higham
- 20, Walmers Avenue, Higham
- 22, Walmers Avenue, Higham
- 26, Walmers Avenue, Higham
- 28, Walmers Avenue, Higham
- 29 Walmers Avenue, Higham
- 30 Walmers Avenue, Higham
- 33, Walmers Avenue, Higham
- 34, Walmers Avenue, Higham
- 34a, Walmers Avenue, Higham
- 35 Walmers Avenue, Higham
- 37 Walmers Avenue, Higham
- 38, Walmers Avenue, Higham
- 39, Walmers Avenue, Higham
- 40, Walmers Avenue, Higham
- 41, Walmers Avenue, Higham
- 45 Walmers Avenue, Higham
- 51, Walmers Avenue, Higham
- 52, Walmers Avenue, Higham
- 58 Walmers Avenue, Higham
- The Banks, Walmers Avenue, Higham
Gas and electricity use
Homes with gas used 15,572 kWh of it on average in 2024, 45% more than the district's 10,736 kWh, and 3,478 kWh of electricity, 10% less than the district's 3,845 kWh. There are gas meters for about 100% of the homes.
| Postcode | Electricity meters | Typical electricity | Gas meters | Typical gas |
|---|---|---|---|---|
| ME3 7EH | 38 | 3,069 kWh | 39 | 16,595 kWh |
| ME3 7EJ | 22 | 2,422 kWh | 23 | 12,083 kWh |
These are all the homes on each postcode, whatever their size and however many live in them, so they show the kind of homes and heating here rather than what any one home uses. The typical figure is the median: half the homes used less. The district is ME3.
Council tax
What each band costs in Gravesham in 2026-27: Band D £2,408 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,605 | £1,873 | £2,141 | £2,408 | £2,943 | £3,479 | £4,014 | £4,816 |
Homes by band in the neighbourhood around this street: most are in band E (31% of about 540 homes).
Planning and heritage
- Conservation area: no postcode centre in this street's postcodes is in one.
- Listed buildings on or by this street: none.
- Article 4 direction (removing permitted development rights): none recorded, though not every council has published theirs.
- Tree preservation orders: 6 protected trees on or by this street.
- Green belt: no.
Energy projects nearby
No wind turbine or waste plant within 5 km (3.1 miles), and no solar farm, battery site or other project of 1 MW or more within 2 km (1.2 miles), of the street's postcodes, operating or planned.
Roadworks
Finished in the last three months
- 27 August 2026: BT, Utility repair and maintenance works, temp obstruction 15 minute delay, on the verge (minor works)
Flood risk
Rivers, the sea or surface water: in this street's postcodes, 0 addresses are in areas at high risk, 0 at medium risk and 3 at low risk. Each address counts once, at the higher of its rivers-and-sea and surface-water risk.
Rivers and the sea alone: no home is in an area at risk.
High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. Very low: under 0.1%. The rivers and sea figures allow for flood defences. Counts cover whole postcodes, which can include other streets.
Flood zone for planning: no postcode centre on this street is in flood zone 2 or 3.
| Postcode | Planning zone | Addresses at high / medium / low risk | Groundwater |
|---|---|---|---|
| ME3 7EH | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| ME3 7EJ | not in 2 or 3 | 0 / 0 / 3 | unlikely |
Recorded floods
No recorded flood covers the centre of any of this street's postcodes.
Recorded floods are where floodwater was seen or surveyed after a flood. Many floods were never mapped, an outline over a postcode's centre does not mean every home in it flooded, and homes outside one may have. Ask the seller whether the home itself has flooded.
Coastal erosion
No projected coastal erosion zone is within 1 km (0.6 miles) of the street's postcodes.
Storm overflows
No storm overflow outlet is within 1 km (0.6 miles) of the street's postcodes.
Coal mining
No postcode centre on the street is in a coalfield: the Mining Remediation Authority records no coal mining risk here.
Radon
The highest radon potential in the 1 km squares around the street's postcodes is 1 to 3%: up to that share of homes there is estimated to be at or above the Action Level of 200 becquerels per cubic metre. At least part of that area is a radon Affected Area, where 1% or more of homes are.
Radon is a natural radioactive gas from the ground that can build up indoors; long exposure raises the risk of lung cancer. A three-month test with two small detectors is the only way to know a home's level, and a high level can usually be brought down with a sump or better ventilation. UKHSA sells a radon report for a single address from its detailed map at ukradon.org.
Historic landfill
No historic landfill site is within 500 m (0.3 miles) of the street's postcodes.
Height above sea level
The street's 65 addresses are between 55 m and 70 m above sea level (62 m on average); the ground rises about 15 m from the lowest to the highest.
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| ME3 7EH | 100% | 95% | 95% | 0% |
| ME3 7EJ | 100% | 100% | 100% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Higham 138,000 journeys in 2024–25 | 1.6 km (1 mile) |
| Strood (Kent) 1.2 million journeys in 2024–25 | 4.2 km (2.6 miles) | |
| Cuxton 61,000 journeys in 2024–25 | 4.9 km (3 miles) | |
| Bus stops | 3 stops within 400 m (0.2 miles), 12 within 800 m (0.5 miles); nearest The Manor House Higham | 170 m |
| Bus or coach station | Waterfront Bus Station Chatham | 6.3 km (3.9 miles) |
| Ferry terminal | Town Pier Gravesend | 6.4 km (4 miles) |
| EV charging points | Commercial Road Car Park | 4 km (2.5 miles) |
| Airport with scheduled flights | London Southend Airport SEN | 24.1 km (15 miles) |
| Nearest large airport | London Gatwick Airport LGW | 53.4 km (33 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | Court View Surgery Good Jul 2018 | 3.5 km (2.2 miles) |
| Pharmacies | 1 pharmacy within 1.6 km (1 mile); nearest Lawsat Pharm LTD | 730 m (0.5 miles) |
| NHS dentists | Louise Lunness-Barnes Dental Clinic | 2.6 km (1.6 miles) |
| Hospital | Gravesham Community Hospital | 6.5 km (4 miles) |
| Care homes | The Kent Autistic Trust - 11a Curlew Crescent Good Apr 2026 | 2.9 km (1.8 miles) |
| Police station | Metropolitan Police Specialist Training Centre | 4.1 km (2.5 miles) |
| Cash machines | Asda Strood - Salters Cross Pfs, Strood | 2.5 km (1.6 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | Shorne Wood Country Park 129 ha | 1.9 km (1.2 miles) |
| Play area | Unnamed 1,220 m² | 1.2 km (0.8 miles) |
| Playing field | Unnamed 1.4 ha | 1.2 km (0.7 miles) |
| Allotments | Unnamed 1.2 ha | 1 km (0.6 miles) |
Landmarks
The nearest historic landmark is Gadshill Place, a listed building (Grade I), 900 m (0.6 miles) south-east. 4 listed buildings are within 1 km (0.6 miles), 1 of them Grade I.
| Name | What it is | From the middle of the street |
|---|---|---|
| Gadshill Place | Listed building, Grade I | 900 m (0.6 miles) south-east |
| Name | What it is | From the middle of the street |
|---|---|---|
| Court Wood | Wood | 470 m (0.3 miles) south |
| Chilton Hills Wood | Wood | 500 m (0.3 miles) north-east |
| Telegraph Hill | Hill | 1.1 km (0.7 miles) east |
| Shorne Marshes | Wetland | 2.9 km (1.8 miles) north |
| New Fish Pond | Lake or reservoir | 3.3 km (2.1 miles) south-west |
| Bridge Reach | Tidal water | 4.5 km (2.8 miles) south-east |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 10.2 | 40 | 10 |
| Fine particles (PM2.5) | 7.4 | 20 | 5 |
| Particles (PM10) | 12.3 | 40 | 15 |
All three are within the UK legal limits; nitrogen dioxide and PM2.5 are above the WHO guideline, as in most towns and cities.
Road and rail noise
| Level | Road traffic | Railways |
|---|---|---|
| 60 to 64 | 2 | 0 |
| 55 to 59 | 3 | 0 |
| Under 55 | 60 | 65 |
5 of the street's 65 addresses are modelled at 55 dB or more from road traffic, above the WHO guidelines.
Climate, daylight and earthquakes
Monthly temperatures and rainfall, sunrise and sunset through the year, and earthquakes recorded nearby since 1970 are much the same across the area, so they are worked out once for Gravesham: see them on the Gravesham page.
Nearest schools
| School | Phase | Ages | Distance | Inspection | Exam results |
|---|---|---|---|---|---|
| Shorne Church of England Primary School | Primary | 5–11 | 1.2 km (0.7 miles) | No published inspection | 69% at the expected standard in reading, writing and maths, 14% at the higher standard (2025; 53% in 2024 and 50% in 2023) |
| Higham Primary School | Primary | 4–11 | 1.2 km (0.7 miles) | Good (Jan 2024, overall grade under the previous framework) | 57% at the expected standard in reading, writing and maths, 3% at the higher standard (2025; 52% in 2024 and 40% in 2023) |
Exam results are from the Department for Education's school performance tables (Explore Education Statistics, Open Government Licence), for all pupils at each school. The middle school in England had 63% at the expected standard at the end of primary school (2025), Attainment 8 of 46.0 at GCSE (2026) and an A level average of C+ (2025). Attainment 8 adds up a pupil's grades in eight GCSEs, with English and maths counted twice (90 is the most), averaged over the school's pupils. Progress 8 compares pupils with others who had the same results at the end of primary school; it is not published for GCSEs in 2025 and 2026, as those pupils sat no primary tests during the pandemic. Small year groups swing from year to year, and figures for very small ones are withheld.
Nurseries and childcare
3 nurseries, pre-schools and clubs within 1.5 km (0.9 miles), the nearest 1.2 km (0.7 miles) from the middle of the street.
| Provider | Kind | Places | Latest inspection | Distance |
|---|---|---|---|---|
| Higham Village Pre-School ME3 7JL | Sessional day care | 30 | Good (Feb 2025, overall grade under the previous framework) | 1.2 km (0.7 miles) |
| Stagecoach Strood DA12 3DU | Out-of-school day care (over fives) | Not inspected yet | 1.2 km (0.8 miles) | |
| Progressive Sports @ Shorne DA12 3DU | Out-of-school day care | 20 | Not inspected yet | 1.2 km (0.8 miles) |
Ofsted also registers 757 childminders and 217 home childcarers (nannies) in Kent. It does not publish their addresses, so they cannot be shown here; the council's family information service lists those taking children.
Food hygiene ratings nearby
| Business | Type | Distance | Rating | Rated |
|---|---|---|---|---|
| Anisa Indian Cuisine ME3 7DZ | Restaurant/Cafe/Canteen | 380 m | 5 Very good | 3 Jun 2026 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Other theft | 4 |
| Criminal damage and arson | 1 |
| Violence and sexual offences | 1 |
| Drugs | 1 |
| Robbery | 1 |
| Anti-social behaviour | 1 |
| Vehicle crime | 1 |
| Burglary | 1 |
Most of these are attached to: On or near Walmers Avenue (6); On or near Briar Dale (3); On or near Hollytree Drive (2).
Road safety
No collisions in which someone was hurt were reported on and around the street in 2021 to 2025.
Only collisions in which someone was hurt and which the police were told about are here: damage-only collisions and near misses are not, and some injuries are never reported. Positions are recorded by the police, usually to within a few metres. Each year's figures are published the following September.
Traffic on nearby roads
The busiest counted road within 500 m (0.3 miles) is the A226 between Castle Lane, Gravesend and A289, with 12,161 motor vehicles a day on average in 2025, 410 m (0.3 miles) from the street's postcodes.
| Road | Between | Vehicles a day | Lorries | Ten years before | Distance |
|---|---|---|---|---|---|
| A226 | Castle Lane, Gravesend to A289 | 12,161 estimated; counted 2024 | 3% | +5% since 2015 | 410 m (0.3 miles) |
Each figure is the annual average daily flow: the motor vehicles passing the count point, both ways, on an average day of the year. A point is counted by hand on a weekday every few years and estimated from the trend on similar roads in between. Lorries are heavy goods vehicles, as a share of all motor vehicles.
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 53 | 40 |
| Children under 15 | 12% | 17% |
| Aged 65 and over | 34% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 97% | 61% |
| Owned outright | 62% | 33% |
| Shared ownership | 0% | 1% |
| Social rented | under 1% | 17% |
| Private rented | 3% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 49% | 57% |
| Unemployment (of those working or looking for work) | 5% | 6% |
| Retired (of adults) | 37% | 22% |
| Long-term sick or disabled (of adults) | 1% | 4% |
| Work mainly from home (of those in work) | 43% | 32% |
| Travel to work by car or van | 52% | 48% |
| By train, Underground, metro or tram | 3% | 4% |
| By any public transport, including bus | 4% | 8% |
| On foot or by bicycle | 2% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 55% | 65% |
| Work 30 km (19 miles) or more away | 15% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 32% | 34% |
| No qualifications | 20% | 18% |
| Apprenticeship as highest qualification | 6% | 5% |
| Main language English (aged 3 and over) | 98% | 91% |
| Cannot speak English well or at all | 0% | 2% |
Deprivation
The neighbourhood around this street is in decile 8 of 10 on the English Indices of Deprivation 2025, where 1 is the most deprived tenth of England's 33,755 neighbourhoods and 10 the least.
What has changed
Nothing new since the change feed started on 30 October 2026. New sales and energy certificates, and hygiene ratings, school inspections and flood figures nearby, will be listed here as the sources update.
Postcodes on this street
Nearby streets
Evergreen Close · Briar Dale · Hollytree Drive · Carton Road
What this page cannot tell you
- Whether a particular house is at risk of flooding, subsiding or anything else: the flood map is a model of areas and there is no property-level data here.
- What a home is worth now: sales are historic prices for the homes that happened to sell.
- How safe the street is: crime points are moved to anonymised locations and many crimes are never reported; road collisions count only those in which someone was hurt and the police were told.
- Whether you would get a place at a school: distances are straight lines, not catchments.
- Who lives on the street now: census figures describe the small areas around it in March 2021, during a lockdown.
- How long a journey takes or how often anything runs: transport distances are straight lines to the nearest stops.
- Whether a GP practice is taking new patients, or a dentist new NHS patients.
- How loud a home is inside, or noise from industry, neighbours or smaller airfields: noise figures are models of road, rail and air traffic outside.
How each figure on this page is matched to the street and worked out: methodology.