Nursery Avenue Ormskirk, West Lancashire

83 addresses across 3 postcodes (L39), about 530 m (0.3 miles) long, classed as a local road. USRN 43300027.

  • Sales: 100 recorded sales since 1995; in 2025 the median was £210,000 across 3 sales.
  • Energy: 48 homes have an energy certificate (B: 1, C: 7, D: 32, E: 5, F: 2, G: 1).
  • Flood: 1 address on its postcodes is 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 West Lancashire costs £2,456 a year in 2026-27.
  • Broadband: Gigabit broadband is available to 100% of premises.
  • Transport: The nearest railway station is Ormskirk, about 520 m (0.3 miles) away in a straight line.
  • Green space: The nearest park or garden, St Helens Road Park, is about 850 m (0.5 miles) away.
  • Air: Background air pollution in 2024 was 6.7 µg/m³ of nitrogen dioxide and 6.0 of PM2.5, within UK legal limits.
  • Height: Its addresses are 42 to 55 m above sea level.
  • Noise: 1 of its 83 addresses is modelled at 55 dB or more from road traffic.
  • Doctors: The nearest GP surgery is Ormskirk Medical Practice, about 730 m (0.5 miles) away, with 3 practices within 1.6 km (1 mile).
  • People: About 650 people lived in the census areas around it in 2021; 87% of households owned their home and 38% of adults held a degree or other higher qualification.
  • Crime: 17 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.

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
20253£210,000£197,500£345,000
20242£203,500£202,000£205,000
20232£217,000£195,000£239,000
20221£205,000£205,000£205,000
20214£194,350£190,000£236,000
20207£166,500£145,500£240,000
20193£190,000£145,000£205,000
20172£173,500£165,000£182,000
20165£146,000£145,000£174,000
20153£147,500£145,000£165,000
20143£144,000£135,000£178,000
20133£152,000£139,000£175,000
Most recent sales (latest 50 of 100)
DateAddressTypePriceNotes
12 Jun 202622 L39 2DZDetached£175,000Not a standard sale (repossession, buy-to-let or transfer).
13 Mar 202643 L39 2DYSemi-detached£172,000Not a standard sale (repossession, buy-to-let or transfer).
14 Jul 202513 L39 2DYSemi-detached£197,500Leasehold.
31 Mar 20259 L39 2DYSemi-detached£210,000
3 Mar 202516 L39 2DZSemi-detached£345,000Leasehold.
24 Sep 202418 L39 2DZDetached£150,000Not a standard sale (repossession, buy-to-let or transfer).
28 Mar 202444 L39 2DZSemi-detached£205,000
26 Feb 2024102 L39 2DZSemi-detached£202,000
18 Dec 202380 L39 2DZDetached£239,000Leasehold.
2 Jun 2023104 L39 2DZTerraced£195,000Leasehold.
11 Mar 202298 L39 2DZSemi-detached£205,000
13 Oct 202192 L39 2DZSemi-detached£190,000
4 Oct 202144 L39 2DZSemi-detached£198,700
30 Jun 202170 L39 2DZSemi-detached£236,000Leasehold.
9 Apr 202174 L39 2DZSemi-detached£190,000
10 Dec 20201 L39 2DYDetached£237,500
23 Oct 202010 L39 2DZSemi-detached£185,000Leasehold.
23 Oct 202010 L39 2DZOther£185,000Not a standard sale (repossession, buy-to-let or transfer).
18 May 202028 L39 2DZDetached£166,368Leasehold.
20 Mar 202023 L39 2DYTerraced£240,000Leasehold.
20 Mar 202056 L39 2DZSemi-detached£158,000
20 Mar 202092 L39 2DZSemi-detached£145,500
17 Jan 20203 L39 2DYSemi-detached£166,500
9 Aug 20192 L39 2DZTerraced£190,000
3 Jul 20195 L39 2DYSemi-detached£205,000
16 May 201915 L39 2DYOther£1,386Not a standard sale (repossession, buy-to-let or transfer).
12 Mar 201974 L39 2DZSemi-detached£145,000
29 Nov 201758 L39 2DZSemi-detached£165,000
6 Feb 201714 L39 2DZDetached£182,000
7 Dec 201694 L39 2DZSemi-detached£146,000Leasehold.
6 Oct 201640 L39 2DZSemi-detached£163,250Leasehold.
8 Jul 201644 L39 2DZSemi-detached£145,000
5 Jul 2016100 L39 2DZSemi-detached£145,000
15 Feb 20164 L39 2DZTerraced£185,000Not a standard sale (repossession, buy-to-let or transfer).
12 Feb 201612 L39 2DZSemi-detached£174,000
25 Nov 201526 L39 2DZDetached£165,000
6 Nov 20153 L39 2DYSemi-detached£147,500
23 Oct 201527 L39 2DYSemi-detached£145,000
26 Sep 201482 L39 2DZDetached£178,000
26 Sep 2014102 L39 2DZSemi-detached£144,000
6 Jun 201424 L39 2DZDetached£135,000Leasehold.
9 Sep 20135 L39 2DYSemi-detached£175,000Leasehold.
16 Aug 20137 L39 2DYSemi-detached£139,000
1 Feb 201320 L39 2DZDetached£152,000
22 Oct 20121 L39 2DYDetached£172,500
28 Sep 201270 L39 2DZSemi-detached£177,000Leasehold.
5 Apr 201224 L39 2DZDetached£125,000Leasehold.
19 Aug 201130 L39 2DZDetached£125,000Leasehold.
1 Jun 201128 L39 2DZDetached£125,000Leasehold.
27 Aug 201016 L39 2DZSemi-detached£247,500Leasehold.

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 November 2008 and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

48 homes with a current certificate; median floor area 75 m². Most common: House, semi-detached (24); House, detached (12); Bungalow, detached (8). Built: 1967-1975 (26); 1976-1982 (11); 1950-1966 (9). Tenure at assessment: owner-occupied (34); rented (private) (7).

Council tax

What each band costs in West Lancashire in 2026-27: Band D £2,456 a year on average, including the police, fire and any county and parish charges.

ABCDEFGH
£1,637£1,910£2,183£2,456£3,002£3,548£4,094£4,912

Homes by band in the neighbourhoods around this street: most are in band C (37% of about 1,260 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: 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: none recorded, though not every council has published theirs.
  • Green belt: no.

Brownfield land registered for housing within 1 km (0.6 miles)

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

No street works under way, planned or finished in the last three months on this street, in permits up to 30 September 2026.

Source: Department for Transport, Street Manager open data, permits and works up to 30 September 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, 0 at medium risk and 6 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.

PostcodePlanning zoneAddresses at high / medium / low riskGroundwater
L39 2DZnot in 2 or 3 1 / 0 / 5 unlikely
L39 2DYnot in 2 or 3 0 / 0 / 1 unlikely
L39 2DRnot in 2 or 3 0 / 0 / 0 unlikely

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 83 addresses are between 42 m and 55 m above sea level (46 m on average); the ground rises about 13 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
L39 2DR100%100%100%0%
L39 2DY100%100%100%0%
L39 2DZ100%100%100%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 stationsOrmskirk 2.3 million journeys in 2024–25520 m (0.3 miles)
Aughton Park 186,000 journeys in 2024–252.3 km (1.5 miles)
Burscough Junction 51,000 journeys in 2024–253.7 km (2.3 miles)
Bus stops2 stops within 400 m (0.2 miles), 27 within 800 m (0.5 miles); nearest Greetby Hill Ormskirk220 m
Bus or coach stationConcourse Skelmersdale7 km (4.3 miles)
Car parksMorrisons Car Park - Ormskirk1.1 km (0.7 miles)
EV charging points5 within 1.6 km (1 mile); nearest bp pulse Charging Station690 m (0.4 miles)
Airport with scheduled flightsLiverpool John Lennon Airport LPL26.3 km (16 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 surgeries3 practices within 1.6 km (1 mile); nearest Ormskirk Medical Practice730 m (0.5 miles)
Pharmacies5 pharmacies within 1.6 km (1 mile); nearest Ormskirk Pharmacy730 m (0.5 miles)
NHS dentists4 practices within 1.6 km (1 mile); nearest Oak Dental Care Limited750 m (0.5 miles)
HospitalOrmskirk And District General Hospital750 m (0.5 miles)
Police stationLancashire Constabulary640 m (0.4 miles)
Cash machinesCardiff Gate, North Pentwyn3.6 km (2.3 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 gardenSt Helens Road Park 4,830 m²850 m (0.5 miles)
Play area3 within 800 m (0.5 miles); nearest Unnamed 170 m²360 m
Playing field1 within 800 m (0.5 miles); nearest Unnamed 1.2 ha320 m
Allotments3 within 800 m (0.5 miles); nearest Unnamed 3,550 m²190 m

Landmarks

The nearest historic landmark is Water Tower on Tower Hill, a listed building (Grade II*), 210 m south-east. 44 listed buildings are within 1 km (0.6 miles), 3 of them Grade II*.

Historic places
NameWhat it isFrom the middle of the street
Water Tower on Tower HillListed building, Grade II*210 m south-east
Bath LodgeListed building, Grade II*680 m (0.4 miles) north-east
Cross Hall moated siteScheduled monument770 m (0.5 miles) south-east
Church of St Peter and St PaulListed building, Grade II*930 m (0.6 miles) west
Burscough Augustinian PrioryScheduled monument1.7 km (1.1 miles) north-east
Natural landmarks within 5 km (3.1 miles)
NameWhat it isFrom the middle of the street
Smithy WoodWood760 m (0.5 miles) east
The SpinneyWood1 km (0.6 miles) east
Ruff WoodWood1.3 km (0.8 miles) south-east
Postillion CapLake or reservoir3.7 km (2.3 miles) east
Goose IslandIsland4 km (2.5 miles) east
Lowry HillHill4.3 km (2.7 miles) north-east

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)6.74010
Fine particles (PM2.5)6.0205
Particles (PM10)10.54015

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
60 to 6410
Under 558283

1 of the street's 83 addresses is 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 West Lancashire: see them on the West Lancashire page.

Nearest schools

Source: Get Information About Schools (Department for Education), 1 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
Ormskirk Church of England Primary SchoolPrimary4–11140 m No published inspection
Ormskirk SchoolSecondary11–18730 m (0.5 miles) No overall grade (Jan 2025, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good
Moorgate Nursery SchoolNursery3–51.1 km (0.7 miles) Good (May 2023, overall grade under the previous framework)
Ormskirk West End SchoolPrimary5–111.2 km (0.8 miles) No published inspection
Ormskirk St Anne's Catholic Primary School Roman CatholicPrimary4–111.4 km (0.9 miles) Good (Dec 2019, overall grade under the previous framework)
Ormskirk Asmall Primary SchoolPrimary4–111.5 km (0.9 miles) No published inspection
St Bede's Catholic High School Roman CatholicSecondary11–161.6 km (1 mile) No overall grade (Nov 2024, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good

Food hygiene ratings nearby

Source: Food Standards Agency, Food Hygiene Rating Scheme, extract of 1 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.

BusinessTypeDistanceRatingRated
Stocks Hall Residential Home L39 2DZHospitals/Childcare/Caring Premises60 m5 Very good29 Oct 2025
Ormskirk C Of E Primary School L39 2DPSchool/college/university190 m5 Very good13 Jul 2026
Out of School Club L39 2DPHospitals/Childcare/Caring Premises190 m4 Good23 Apr 2025
The Fat Italian L39 2XPRestaurant/Cafe/Canteen340 m5 Very good11 Nov 2024
Aramark@University of Derby School/college/university360 m5 Very good14 Oct 2022
Costa Coffee L39 2ANRestaurant/Cafe/Canteen400 m (0.2 miles)5 Very good13 Feb 2026
Home Bargains L39 2ANRetailers - other400 m (0.2 miles)5 Very good13 Feb 2026
Lidl L39 2ZARetailers - supermarkets/hypermarkets400 m (0.2 miles)5 Very good7 Jan 2024
Iceland Food Warehouse L39 2ANRetailers - supermarkets/hypermarkets420 m (0.3 miles)5 Very good13 Feb 2026
Derby Day Care Centre L39 2BWHospitals/Childcare/Caring Premises430 m (0.3 miles)5 Very good26 Jan 2026
Grimshaw Lane Dairies L39 2YTDistributors/Transporters470 m (0.3 miles)5 Very good20 Jun 2023
Martin's Caterers L39 2YTOther catering premises470 m (0.3 miles)5 Very good20 Oct 2025
G & E Hallsworth & Son L39 2ASRetailers - other480 m (0.3 miles)3 Generally satisfactory6 Nov 2025
KFC L39 2ANRestaurant/Cafe/Canteen480 m (0.3 miles)Awaiting inspection
Family Express L39 2DERetailers - other490 m (0.3 miles)5 Very good18 Sep 2023

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.

17 recorded crimes by category
CategoryCrimes
Violence and sexual offences7
Anti-social behaviour5
Other theft3
Public order2

Most of these are attached to: On or near Waterworks Road (11); On or near Pendle Drive (4); On or near Nursery Avenue (2).

People and work

Source: ONS Census 2021, taken on 21 March 2021, for the 2 Output Areas (small census areas of about 125 households each) that this street's postcodes are in: 649 residents in 253 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 age5240
Children under 1513%17%
Aged 65 and over33%18%

Homes

Around this streetEngland
Owned (outright or with a mortgage)87%61%
Owned outright54%33%
Shared ownershipunder 1%1%
Social rented4%17%
Private rented9%21%

Work and commuting

Around this streetEngland
Adults (16 and over) in work51%57%
Unemployment (of those working or looking for work)5%6%
Retired (of adults)37%22%
Long-term sick or disabled (of adults)2%4%
Work mainly from home (of those in work)35%32%
Travel to work by car or van48%48%
By train, Underground, metro or tram3%4%
By any public transport, including bus3%8%
On foot or by bicycle14%10%
Work within 10 km (6 miles) of home (of those who travel to work)48%65%
Work 30 km (19 miles) or more away6%8%

Education and languages

Around this streetEngland
Degree or other higher qualification, Level 4+ (of adults)38%34%
No qualifications12%18%
Apprenticeship as highest qualification7%5%
Main language English (aged 3 and over)99%91%
Cannot speak English well or at allunder 1%2%

Deprivation

The 2 neighbourhoods around this street are in deciles 8 to 10 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.

  • L39 2DZ: 60 addresses of 61 in the postcode
  • L39 2DY: 22 addresses
  • L39 2DR: 1 address of 13 in the postcode

Nearby streets

Waterworks Road · Pendle Drive · Dark Lane · Delph Top · Quarry Mount · Tower Hill · Derby Hill Crescent · Bath Springs · Derby Hill Road · Hattersley Way · Field Walk · Brooklands

All the streets in L39 and across West Lancashire.

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.