The Street Worth, Dover

144 addresses across 14 postcodes (CT14), about 1.8 km (1.1 miles) long, classed as a local road. USRN 11301275.

  • Sales: 94 recorded sales since 1995; in 2026 the median was £525,000 across 1 sale.
  • Energy: 66 homes have an energy certificate (B: 16, C: 9, D: 27, E: 11, F: 2, G: 1).
  • Flood: 6 addresses on its postcodes are in areas at high or medium risk of flooding from rivers, the sea or surface water.
  • Council tax: Most homes around it are in council tax band C; Band D in Dover costs £2,462 a year in 2026-27.
  • Broadband: Gigabit broadband is available to 0% to 100% of premises.
  • Transport: The nearest railway station is Sandwich, about 1.4 km (0.9 miles) away in a straight line.
  • Green space: The nearest park or garden is about 1.6 km (1 mile) away.
  • Air: Background air pollution in 2024 was 5.8 µg/m³ of nitrogen dioxide and 6.4 of PM2.5, within UK legal limits.
  • Height: Its addresses are 0 to 8 m above sea level.
  • Noise: 31 of its 144 addresses are modelled at 55 dB or more from road traffic.
  • Doctors: The nearest GP surgery is Sandwich Medical Practice, about 2 km (1.3 miles) away.
  • People: About 1,240 people lived in the census areas around it in 2021; 81% of households owned their home and 36% of adults held a degree or other higher qualification.

Sales on this street

Source: HM Land Registry Price Paid Data, sales registered up to 28 August 2026, loaded 28 October 2026. Sales reach the register two weeks to two months after completion, so the last two months are incomplete. Matched by postcode and street name.

Sales by year (standard sales only; repossessions and buy-to-let transfers excluded)
YearSalesMedian priceLowestHighest
20261£525,000£525,000£525,000
20251£450,000£450,000£450,000
20231£395,000£395,000£395,000
20221£575,000£575,000£575,000
20218£517,500£369,000£710,000
20201£375,000£375,000£375,000
20193£388,000£325,000£450,000
20184£312,498£182,000£378,000
20176£468,500£387,500£635,000
20163£278,000£267,500£410,000
20153£412,000£230,000£415,000
20143£280,000£260,000£395,000
Most recent sales (latest 50 of 94)
DateAddressTypePriceNotes
12 Feb 20261, FORSTALL HOUSE CT14 0DGSemi-detached£525,000
25 Nov 2025WORTH FARM CT14 0DFOther£1,450,000Not a standard sale (repossession, buy-to-let or transfer).
21 Mar 2025LINKSFIELD CT14 0BYDetached£450,000
5 Jan 2024THE BLUE PIGEONS AT WORTH CT14 0DEDetached£1,200,000Not a standard sale (repossession, buy-to-let or transfer).
19 Sep 2023CAIRNGORMS CT14 0DFSemi-detached£395,000
25 May 2022GLENCROFT CT14 0DEDetached£575,000
12 Nov 2021RANMORE HOUSE CT14 0BYSemi-detached£525,000
6 Sep 2021THE OLD VILLAGE STORES CT14 0DGTerraced£710,000
16 Apr 2021HORBURY CT14 0BYDetached£510,000
12 Mar 2021TEMPTYE FARMHOUSE CT14 0DJDetached£600,000
12 Feb 2021PEMBERLEY CT14 0DFDetached£369,000
11 Feb 2021WILLOW HOUSE CT14 0BYDetached£575,000
29 Jan 2021CAPE TENY CT14 0BYDetached£440,000
28 Jan 2021THAMANI CT14 0BYSemi-detached£420,000
4 Nov 2020ORCHARD COTTAGE CT14 0BYSemi-detached£375,000
25 Oct 20191, FORSTALL HOUSE CT14 0DGSemi-detached£450,000
1 Aug 20192, FORSTALL HOUSE CT14 0DGSemi-detached£325,000
26 Apr 2019MARIANNA CT14 0BYDetached£388,000
9 Nov 2018REDLANDS CT14 0BYSemi-detached£378,000
18 Sep 2018THE OLD BLUE PIGEONS CT14 0DEDetached£300,000
13 Sep 2018STORES COTTAGE CT14 0DGTerraced£182,000
13 Jul 2018HOLLY END CT14 0DFDetached£324,995
8 Jan 2018BISLEY CT14 0DDOther£3,300,000Not a standard sale (repossession, buy-to-let or transfer).
23 Aug 2017RANMORE HOUSE CT14 0BYSemi-detached£387,500
11 Aug 2017WHITEWALLS CT14 0BYDetached£505,000
3 Aug 2017THE STORES CT14 0DGTerraced£442,000
31 Jul 2017STREET FARM HOUSE CT14 0DESemi-detached£635,000
28 Jun 2017ROSE COTTAGE CT14 0DEDetached£495,000
7 Apr 2017YEW TREE COTTAGE CT14 0DGDetached£390,000
28 Oct 2016THE JAYS CT14 0BYDetached£410,000
30 Sep 2016LYNDHURST CT14 0DESemi-detached£267,500
3 Jun 2016MARIANNA CT14 0BYDetached£278,000
19 Aug 2015ST LEDGER COTTAGE CT14 0DEDetached£415,000
29 Jul 2015WORTH END CT14 0DFDetached£412,000
24 Apr 2015JONDORA CT14 0DESemi-detached£230,000
1 Dec 2014WOODKIRK HOUSE CT14 0BYDetached£280,000
11 Apr 2014PROSPECT HOUSE CT14 0DDSemi-detached£395,000
28 Mar 2014REDLANDS CT14 0BYSemi-detached£260,000
8 May 2013THE OLD VICARAGE CT14 0DEDetached£662,500
3 May 2013HOLLY END CT14 0DFDetached£230,000
31 Oct 2012RAYMONDE CT14 0DEDetached£245,000
3 Jul 2012NORTHBROOK HOUSE CT14 0DGDetached£390,000
17 May 2012FAIRVIEW CT14 0BYDetached£340,000
14 May 2012GLENCROFT CT14 0DEDetached£340,000
10 Apr 2012ROSE COTTAGE CT14 0DEDetached£300,000
19 Jul 2011PEACEHAVEN CT14 0BYSemi-detached£325,000
4 May 2011LINKSFIELD CT14 0BYDetached£312,500
18 Jun 2010RHODA FARM HOUSE CT14 0DFDetached£455,251
3 Dec 2009LITTLE TEMPTYE CT14 0DJDetached£430,000
27 Oct 2009HOLM HOUSE CT14 0DEDetached£430,000

Energy performance certificates

Source: Energy Performance of Buildings Register (MHCLG), register as at 1 November 2026. Latest certificate per address; certificates last ten years, so the oldest here dates from July 2009 and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

66 homes with a current certificate; median floor area 117 m². Most common: House, detached (31); Bungalow, detached (10); House, semi-detached (9). Built: before 1900 (20); 2017 (15); 1950-1966 (9). Tenure at assessment: owner-occupied (41); rented (private) (1).

Each home's certificates and sales (39 addresses)

Council tax

What each band costs in Dover in 2026-27: Band D £2,462 a year on average, including the police, fire and any county and parish charges.

ABCDEFGH
£1,641£1,915£2,188£2,462£3,009£3,556£4,103£4,923

Homes by band in the neighbourhoods around this street: most are in band C (26% of about 1,610 homes).

Sources: Valuation Office Agency, Council Tax: stock of properties, homes at 31 March 2026 (counts rounded to the nearest 10; some small counts withheld), for the 2 neighbourhoods (census areas of about 700 homes each) around it, not just this street; Ministry of Housing, Communities and Local Government, council tax levels 2026-27. Bands are charged as fixed shares of Band D; the actual bill depends on the parish and on discounts such as the single-person discount. Check a home's own band with the official council tax band checker.

Planning and heritage

  • Conservation area: yes, Worth. Extensions, demolition, some windows and doors, and work on trees need consent.
  • Listed buildings on or by this street: 14.
  • Article 4 direction (removing permitted development rights): none recorded, though not every council has published theirs.
  • Tree preservation orders: 1 protected tree on or by this street.
  • Green belt: no.

Listed buildings

Source: planning.data.gov.uk (Ministry of Housing, Communities and Local Government), compiled from councils and, for listed buildings, Historic England's National Heritage List. Conservation areas, Article 4 directions, tree preservation areas and the green belt are checked at each postcode's centre. Listed buildings and protected trees are counted on or by this street. Councils publish Article 4 directions, tree preservation orders and brownfield registers to different standards, and some not yet. Planning applications are not here: there is no national open record of them yet.

Roadworks

Finished in the last three months

  • 19 August 2026: SOUTHERN WATER, Utility repair and maintenance works, no carriageway incursion, on the carriageway, verge (immediate - urgent works)
  • 12 August 2026: KENT COUNTY COUNCIL, Highway repair and maintenance works, some carriageway incursion, on the footway (immediate - urgent works)
  • 7 August 2026 to 10 August 2026: SOUTHERN WATER, Utility repair and maintenance works, some carriageway incursion, on the footway (minor works)

Source: Department for Transport, Street Manager open data, permits and works up to 31 October 2026. It is published once a month, so works arranged or started since then are not shown, and dates are the ones planned unless the works have started or finished. Emergency works are often permitted after they begin.

Flood risk

Rivers, the sea or surface water: in this street's postcodes, 1 address is in areas at high risk, 5 at medium risk and 9 at low risk. Each address counts once, at the higher of its rivers-and-sea and surface-water risk.

Rivers and the sea alone: of the 95 homes the Environment Agency counts, 0 are in areas at high risk, 0 medium, 0 low and 81 very low.

Groundwater flooding is possible in 14 of these postcodes: an address there is in a groundwater flood alert area.

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: at least one postcode centre is in flood zone 3. Zone 3 is a 1% (1 in 100) or greater annual chance of flooding from rivers, or 0.5% from the sea, ignoring defences.

PostcodePlanning zoneAddresses at high / medium / low riskGroundwater
CT14 0BYnot in 2 or 3 1 / 1 / 1 possible
CT14 0DEnot in 2 or 3 0 / 2 / 0 possible
CT14 0DFzone 2 0 / 0 / 1 possible
CT14 0DJzone 2 0 / 0 / 0 possible
CT14 0DDnot in 2 or 3 0 / 0 / 0 possible
CT14 0DGzone 2 0 / 1 / 0 possible
CT14 0FDnot in 2 or 3 0 / 0 / 1 possible
CT14 0FAnot in 2 or 3 0 / 1 / 4 possible
CT14 0DHzone 3 0 / 0 / 0 possible
CT14 0BZnot in 2 or 3 0 / 0 / 0 possible
CT14 0DQzone 3 0 / 0 / 2 possible
CT14 0DAnot in 2 or 3 0 / 0 / 0 possible
CT14 0DUnot in 2 or 3 0 / 0 / 0 possible
CT14 6RGzone 3 0 / 0 / 0 possible

Sources: Environment Agency Flood risk: postcode search tool data (loaded 29 October 2026), Risk of Flooding from Rivers and Sea: postcodes in areas at risk (loaded 29 October 2026) and Flood Map for Planning (loaded 28 October 2026). Flood zones are checked at each postcode's centre point. These are models of areas, which their publishers say are not suitable for showing whether an individual property is at risk, and they do not cover flooding from sewers or drains. Check an address on the official long-term flood risk service.

© Environment Agency copyright and/or database right 2026. All rights reserved. Some features are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH); the postcode data is produced in part from PAF® and Multiple Residence Data, © Royal Mail Group Limited.

Height above sea level

The street's 144 addresses are between 0 m and 8 m above sea level (4 m on average); the ground rises about 8 m from the lowest to the highest.

Source: Ordnance Survey, OS Terrain 50, July 2026: the height of the ground on a 50 m grid, read at each address, in metres above Ordnance Datum (mean sea level at Newlyn). It is the lie of the land, not floor or threshold levels, and is accurate to a few metres. Being low-lying is not in itself a flood risk; the flood section above says what the flood maps show.

Broadband

Source: Ofcom Connected Nations, data as at January 2026. Percentages are of premises in each postcode that can get the service, not take-up or speed achieved.

Availability by postcode (% of premises)
PostcodeSuperfast (30 Mbit/s+)Ultrafast (300 Mbit/s+)GigabitBelow 10 Mbit/s
CT14 0BY100%100%100%0%
CT14 0BZ100%100%100%0%
CT14 0DA100%100%100%0%
CT14 0DD100%100%100%0%
CT14 0DE100%100%100%0%
CT14 0DF100%100%100%0%
CT14 0DG100%100%100%0%
CT14 0DH0%0%0%0%
CT14 0DJ0%0%0%0%
CT14 0DQ100%83%83%0%
CT14 0DU100%0%0%0%
CT14 0FA100%100%100%0%
CT14 0FD100%100%100%0%
CT14 6RG0%0%0%0%

Getting around

Sources: Department for Transport, NaPTAN (every public transport stop), as at 31 October 2026; Office of Rail and Road, Estimates of station usage 2024–25 (which stations are on the National Rail network, and their journeys: entries and exits in the year to March); OurAirports (public domain, kept by volunteers); car parks and charging points from Overture Maps Foundation, release 2026-10-21.0, which gathers business listings from Meta, Microsoft, Foursquare and others: not an official register, so some will be missing, private or out of date. Distances are straight lines from the middle of the street, not routes, and say nothing about how often anything runs. Stations opened since the end of ORR's year appear when ORR publishes the next one, each December; heritage railways are left out.

NearestDistance
Railway stationsSandwich 320,000 journeys in 2024–251.4 km (0.9 miles)
Deal 530,000 journeys in 2024–255.1 km (3.2 miles)
Walmer 222,000 journeys in 2024–256.6 km (4.1 miles)
Bus stopsNone within 800 m (0.5 miles)
Ferry terminalRamsgate Ferry Terminal8.4 km (5.2 miles)
EV charging pointsThe Quay Car Park1.8 km (1.1 miles)
Airport with scheduled flightsLondon Southend Airport SEN57.6 km (36 miles)
Nearest large airportLondon Stansted Airport STN104 km (65 miles)

Local services

Sources: NHS Organisation Data Service, as at 31 October 2026: GP practices, community pharmacies and dental practices with an NHS contract, open now, each placed at the centre of its postcode; hospitals are NHS trust and Welsh health board sites named as hospitals, and may not have an emergency department. Police stations and cash machines from Overture Maps Foundation, release 2026-10-21.0, which gathers business listings: not an official register, so some will be missing or out of date. Distances are straight lines from the middle of the street. Nothing here says whether a practice is taking new patients or a dentist new NHS patients.

NearestDistance
GP surgeriesSandwich Medical Practice2 km (1.3 miles)
PharmaciesBoots2 km (1.2 miles)
NHS dentistsNew Street Dental Practice1.8 km (1.1 miles)
HospitalVictoria Hospital (Deal)5.1 km (3.2 miles)
Police stationSandwich Police Shop2 km (1.2 miles)
Cash machinesSpar, 16-20 Market Street Cashzone2 km (1.3 miles)

Parks and green space

Source: Ordnance Survey, OS Open Greenspace, April 2026: public parks and gardens, play spaces, playing fields and allotments, with their entrances. Distances are straight lines from the middle of the street to a site's nearest entrance (or its edge where none is recorded), not walking routes; sizes are the area OS maps for each site. Some sites, such as school playing fields, may not be open to the public.

NearestDistance
Park or gardenUnnamed 6,260 m²1.6 km (1 mile)
Play areaUnnamed 670 m²1.7 km (1 mile)
Playing fieldKing George's Field 1.5 ha1.3 km (0.8 miles)
Allotments1 within 800 m (0.5 miles); nearest Unnamed 4,370 m²530 m (0.3 miles)

Landmarks

The nearest historic landmark is Church of St Peter and St Paul, a listed building (Grade II*), 800 m (0.5 miles) south-west. 14 listed buildings are within 1 km (0.6 miles), 1 of them Grade II*.

Historic places
NameWhat it isFrom the middle of the street
Church of St Peter and St PaulListed building, Grade II*800 m (0.5 miles) south-west
Romano-Celtic temple and Iron Age site S of WorthScheduled monument1.4 km (0.9 miles) south-west
Sandwich town walls: section from a point E of gasworks to site of New Gate (including The Bulwark and Mill Wall)Scheduled monument1.6 km (1 mile) north-west
The Salutation, SandwichRegistered park or garden, Grade II1.7 km (1.1 miles) north-west
Sandwich town walls: site of the Round HouseScheduled monument1.8 km (1.1 miles) north-west
Natural landmarks within 5 km (3.1 miles)
NameWhat it isFrom the middle of the street
Great WoodWood590 m (0.4 miles) south
Worth HillHill800 m (0.5 miles) west
The ForksLake or reservoir1 km (0.6 miles) north-east
Cornfield WoodWood1 km (0.7 miles) south
Lydden ValleyValley1.5 km (0.9 miles) south-east
Chalk NealTidal water1.9 km (1.2 miles) north

Sources: Historic England's registers through planning.data.gov.uk (MHCLG), and Cadw through DataMapWales (Welsh Government): World Heritage Sites within 10 km (6.2 miles), battlefields within 5 km (3.1 miles), registered parks and gardens within 3 km (1.9 miles), scheduled monuments within 2 km (1.2 miles), and Grade I and II* listed buildings within 1 km (0.6 miles). Ordnance Survey, OS Open Names, October 2026: named hills, valleys, lakes, woods, wetlands and coast (it has no rivers). Distances are in a straight line to the middle of each site, and being on a register does not mean there is public access.

Air quality

Source: Defra, modelled background air pollution, annual means for 2024, for the 1 km square that holds the middle of the street. These are background levels, away from the kerb: beside a busy road nitrogen dioxide in particular can be several times higher. UK limits are the legal annual limits for England and Wales; the World Health Organization's 2021 guidelines are much stricter, and most towns and cities are above them.

Annual means in µg/m³ (micrograms per cubic metre of air)
PollutantHereUK limitWHO guideline
Nitrogen dioxide (NO2)5.84010
Fine particles (PM2.5)6.4205
Particles (PM10)11.44015

All three are within the UK legal limits; PM2.5 is above the WHO guideline, as in most towns and cities.

Road and rail noise

Source: Defra, strategic noise mapping Round 4 (England), modelled for 2021 and published in December 2023, and its airport maps of the same round for the fifteen largest English airports, published in April 2026: Lden, the average sound level over a whole day with extra weight for the evening and night, on a 10 m grid, read at each address. These are models of traffic, not measurements; they leave out smaller airports and airfields, industry and neighbours, and a room at the back of a house is often much quieter than the front. The World Health Organization's guidelines are 53 dB for road traffic, 54 dB for railways and 45 dB for aircraft (below the lowest level shown here).

Addresses by modelled noise level (Lden, dB)
LevelRoad trafficRailways
70 to 7410
60 to 6412
55 to 59290
Under 55113142

31 of the street's 144 addresses are modelled at 55 dB or more from road traffic, and 2 from railways, 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 Dover: see them on the Dover page.

Nearest schools

Source: Get Information About Schools (Department for Education), 3 November 2026; Ofsted monthly management information as at September 2026. Distances are straight lines from the middle of the street to the school; catchments and admissions are not shown. Since November 2025 Ofsted gives report-card grades by area, not one overall grade; older grades stand until a school is re-inspected.

SchoolPhaseAgesDistanceInspection
Worth Primary SchoolPrimary4–11690 m (0.4 miles) Good (Feb 2024, overall grade under the previous framework)
Sir Roger Manwood's SchoolSecondary11–181.5 km (0.9 miles) Good (Sep 2022, overall grade under the previous framework)
Sandwich Technology SchoolSecondary11–191.5 km (0.9 miles) No published inspection
Sandwich Junior SchoolPrimary7–111.7 km (1.1 miles) No published inspection

Food hygiene ratings nearby

Source: Food Standards Agency, Food Hygiene Rating Scheme, extract of 3 November 2026. Each rating is shown with the date it was given; a business may have been re-inspected since the extract. Within 500 m (0.3 miles) of the middle of the street.

No rated food businesses within 500 m (0.3 miles).

Crime within 250 m

Source: data.police.uk street-level crime, September 2025 to August 2026. Police forces move every crime to the nearest of about 760,000 anonymised map points before publishing, so these are crimes near this street, not on it, and a busy point can collect crimes from a wider area. Counts are of records, not convictions.

No crimes recorded at anonymised points within 250 m in this period (kent).

People and work

Source: ONS Census 2021, taken on 21 March 2021, for the 4 Output Areas (small census areas of about 125 households each) that this street's postcodes are in: 1,239 residents in 513 households. The census was taken during a lockdown, so working from home is high and travel to work low compared with now. ONS swaps a few records between neighbouring areas and adds small amounts of noise to counts to protect privacy, so small differences mean little. Industry is not published for areas this small.

Who lives here

Around this streetEngland
Median age5540
Children under 1512%17%
Aged 65 and over33%18%

Homes

Around this streetEngland
Owned (outright or with a mortgage)81%61%
Owned outright57%33%
Shared ownership2%1%
Social rented4%17%
Private rented14%21%

Work and commuting

Around this streetEngland
Adults (16 and over) in work48%57%
Unemployment (of those working or looking for work)4%6%
Retired (of adults)37%22%
Long-term sick or disabled (of adults)5%4%
Work mainly from home (of those in work)37%32%
Travel to work by car or van54%48%
By train, Underground, metro or tram1%4%
By any public transport, including bus2%8%
On foot or by bicycle5%10%
Work within 10 km (6 miles) of home (of those who travel to work)45%65%
Work 30 km (19 miles) or more away11%8%

Education and languages

Around this streetEngland
Degree or other higher qualification, Level 4+ (of adults)36%34%
No qualifications18%18%
Apprenticeship as highest qualification6%5%
Main language English (aged 3 and over)99%91%
Cannot speak English well or at all0%2%

Deprivation

The 2 neighbourhoods around this street are in deciles 4 to 7 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.

Source: English Indices of Deprivation 2025 (Ministry of Housing, Communities and Local Government), by LSOA (about 1,500 people), through the ONS Postcode Directory. The index combines income, employment, health, education, crime, housing and living environment; it ranks areas against each other and does not describe any one household. Ranks in England and Wales are worked out separately and cannot be compared.

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.

Everything that has changed on and near this street

Postcodes on this street

Source: ONS Postcode Directory August 2026, ONS UPRN Directory September 2026, OS Open Linked Identifiers September 2026. A postcode can cover more than one street; the share shows how many of its addresses are on this one.

  • CT14 0BY: 32 addresses of 34 in the postcode
  • CT14 0DE: 26 addresses of 28 in the postcode
  • CT14 0DF: 17 addresses of 18 in the postcode
  • CT14 0DJ: 17 addresses of 21 in the postcode
  • CT14 0DD: 12 addresses
  • CT14 0DG: 11 addresses of 12 in the postcode
  • CT14 0FD: 9 addresses of 30 in the postcode
  • CT14 0FA: 7 addresses of 12 in the postcode
  • CT14 0DH: 4 addresses
  • CT14 0BZ: 3 addresses of 25 in the postcode
  • CT14 0DQ: 3 addresses of 14 in the postcode
  • CT14 0DA: 1 address of 38 in the postcode
  • CT14 0DU: 1 address of 27 in the postcode
  • CT14 6RG: 1 address of 65 in the postcode

All the streets in CT14 and across Dover.

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.
  • 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.