Quarry Road Pensilva, Cornwall
36 addresses across 7 postcodes (PL14), about 470 m (0.3 miles) long, classed as a restricted local access road. USRN 5703057.
- Sales: 42 recorded sales since 1995; in 2026 the median was £480,000 across 1 sale.
- Prices and rents: A typical home in Cornwall cost £274,570 in August 2026 (-2.9% on a year); private rents averaged £995 a month.
- Energy: 16 homes have an energy certificate (A: 1, B: 1, C: 7, D: 4, E: 2, F: 1).
- 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.
- Storm overflows: 1 storm overflow within 1 km (0.6 miles) spilled 22 times (206 hours) in 2025.
- Radon: Up to 30% or more of homes in the 1 km squares around it are estimated to be at or above the radon Action Level.
- Council tax: Most homes around it are in council tax band B; Band D in Cornwall costs £2,591 a year in 2026-27.
- Broadband: Gigabit broadband is available to 0% to 100% of premises.
- Transport: The nearest railway station is Liskeard, about 7.4 km (4.6 miles) away in a straight line.
- Air: Background air pollution in 2024 was 3.2 µg/m³ of nitrogen dioxide and 4.9 of PM2.5, within UK legal limits.
- Height: Its addresses are 199 to 215 m above sea level.
- Noise: 1 of its 36 addresses is modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Oak Tree Surgery, about 5.4 km (3.3 miles) away.
- People: About 660 people lived in the census areas around it in 2021; 77% of households owned their home and 27% of adults held a degree or other higher qualification.
- Crime: 1 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.
- Road safety: 1 collision in which someone was hurt was reported on and around it in 2021 to 2025.
£9.99 The Street Dossier Full Report for a home on Quarry Road: 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 |
|---|---|---|---|---|
| 2026 | 1 | £480,000 | £480,000 | £480,000 |
| 2024 | 1 | £290,000 | £290,000 | £290,000 |
| 2021 | 1 | £430,000 | £430,000 | £430,000 |
| 2019 | 1 | £230,000 | £230,000 | £230,000 |
| 2017 | 2 | £256,225 | £199,950 | £312,500 |
| 2015 | 1 | £259,950 | £259,950 | £259,950 |
| 2014 | 2 | £250,000 | £250,000 | £250,000 |
| 2012 | 2 | £179,000 | £165,000 | £193,000 |
| 2011 | 1 | £285,000 | £285,000 | £285,000 |
| 2010 | 1 | £215,000 | £215,000 | £215,000 |
| 2009 | 1 | £309,950 | £309,950 | £309,950 |
| 2007 | 2 | £182,350 | £124,700 | £240,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 12 Nov 2014 | ARMADALE PL14 5NT | Detached | £250,000 | |
| 16 Aug 2002 | ARMADALE PL14 5NT | Detached | £200,000 | |
| 22 Oct 2001 | ARMADALE PL14 5NT | Detached | £150,000 | New build. |
| 4 Jun 1999 | BROMLEY HOUSE PL14 5NT | Semi-detached | £105,000 | |
| 16 Mar 2007 | CARMARA PL14 5NP | Semi-detached | £124,700 | New build. |
| 7 Mar 2025 | CHY LOWEN PL14 5NR | Other | £120,000 | Not a standard sale (repossession, buy-to-let or transfer). |
| 25 Oct 2004 | CLAREMONT PL14 5NT | Detached | £290,000 | |
| 29 Aug 2003 | FARTHINGS PL14 5NT | Detached | £240,000 | |
| 29 Aug 2001 | FARTHINGS PL14 5NT | Detached | £160,000 | New build. |
| 29 Nov 2002 | FERNLEIGH PL14 5NR | Detached | £178,000 | |
| 6 Jan 2021 | GWEL TEG PL14 5NT | Detached | £430,000 | |
| 3 Nov 2003 | HIGHER WOOLSTON FARM PL14 5NR | Detached | £339,000 | |
| 21 Jun 2005 | HILTON PL14 5NP | Detached | £240,000 | |
| 31 Mar 2000 | HILTON PL14 5NP | Detached | £125,000 | |
| 20 Nov 1998 | HILTON PL14 5NP | Detached | £74,500 | |
| 25 Aug 2004 | HUNTERS LODGE PL14 5NT | Detached | £267,500 | |
| 1 Jul 2004 | IVY COTTAGE PL14 5NT | Semi-detached | £223,500 | |
| 5 Nov 2002 | IVY COTTAGE PL14 5NT | Semi-detached | £185,000 | |
| 8 May 2017 | JESMONDENE PL14 5NP | Detached | £312,500 | |
| 14 Jul 2003 | JESMONDENE PL14 5NP | Detached | £235,000 | |
| 6 Nov 1998 | JESMONDENE PL14 5NP | Detached | £120,000 | |
| 8 Apr 2019 | JULES PL14 5NP | Detached | £230,000 | |
| 24 Feb 2017 | KILLARNEY PL14 5NT | Detached | £199,950 | |
| 26 Apr 2012 | KILLARNEY PL14 5NT | Detached | £193,000 | |
| 19 Nov 2009 | ROCK BOTTOM PL14 5NT | Detached | £309,950 | |
| 29 Nov 2000 | ROCK BOTTOM PL14 5NT | Detached | £106,000 | |
| 24 Sep 2010 | ROSE COTTAGE PL14 5NR | Detached | £215,000 | |
| 16 Jan 2007 | ROSE COTTAGE PL14 5NR | Detached | £240,000 | |
| 23 Sep 2003 | SPION KOP PL14 5NR | Detached | £246,500 | |
| 20 Sep 2024 | STANFORD PL14 5NP | Detached | £290,000 | |
| 14 May 2002 | SUNNYSIDE PL14 5NP | Detached | £197,000 | |
| 24 Jan 2011 | THE CROFT PL14 5NR | Detached | £285,000 | |
| 29 Oct 1996 | THE CROFT PL14 5NR | Detached | £78,500 | |
| 17 Sep 2015 | TRECONLAN PL14 5NT | Detached | £259,950 | |
| 31 Jul 2002 | TRECONLAN PL14 5NT | Detached | £170,000 | New build. |
| 4 Jul 2002 | TREROSA PL14 5NT | Detached | £135,000 | |
| 13 Feb 2012 | TREVEN PL14 5NP | Semi-detached | £165,000 | |
| 23 Aug 2002 | WHITE LODGE PL14 5NR | Semi-detached | £29,500 | |
| 18 Dec 2000 | WHITE LODGE PL14 5NR | Semi-detached | £135,000 | |
| 30 Aug 1996 | WHITE LODGE PL14 5NR | Semi-detached | £57,655 | |
| 21 May 2026 | WOOLSTON COTTAGE PL14 5NP | Detached | £480,000 | |
| 4 Jul 2014 | WOOLSTON COTTAGE PL14 5NP | Detached | £250,000 |
House prices and rents in Cornwall
A typical home in Cornwall cost £274,570 in August 2026, 2.9% less than a year before. That is 7% more than five years earlier and 36% more than ten years earlier.
| Home | Typical price, Aug 2026 |
|---|---|
| Detached | £419,340 |
| Semi-detached | £275,595 |
| Terraced | £227,474 |
| Flat or maisonette | £144,637 |
| Bought by a first-time buyer | £226,508 |
Private renters in Cornwall paid £995 a month on average in September 2026, 0.9% more than a year before. That is 27% more than five years earlier.
| Home | Average rent a month, Sep 2026 |
|---|---|
| One bedroom | £685 |
| Two bedrooms | £877 |
| Three bedrooms | £1,073 |
| Four or more bedrooms | £1,496 |
Energy performance certificates
16 homes with a current certificate; median floor area 122 m². Most common: House, detached (8); Bungalow, detached (6); House, semi-detached (2). Built: before 1900 (6); 1967-1975 (3); 1996-2002 (3). Tenure at assessment: owner-occupied (12).
Each home's certificates and sales (16 addresses)
- Chy Lowen, Quarry Road, Pensilva
- Claremont, Quarry Road, Pensilva
- Farthings, Quarry Road, Pensilva
- HIGHER WOOLSTON FARM, QUARRY ROAD, PENSILVA
- Ivy Cottage, Quarry Road, Pensilva
- Jesmondene, Quarry Road, Pensilva
- Jules, Quarry Road, Pensilva
- Killarney, Quarry Road, Pensilva
- Olabella, Quarry Road, Pensilva
- Rock Bottom, Quarry Road, Pensilva
- Rose Cottage, Quarry Road, Pensilva
- Spion Kop, Quarry Road, Pensilva
- Stanford, Quarry Road, Pensilva
- Sunnyside, Quarry Road, Pensilva
- Treven, Quarry Road, Pensilva
- Woolston Cottage, Quarry Road, Pensilva
Gas and electricity use
Homes with gas used 10,948 kWh of it on average in 2024, 31% more than the district's 8,351 kWh, and 4,260 kWh of electricity, 6% more than the district's 4,016 kWh. There are gas meters for about 90% of the homes.
| Postcode | Electricity meters | Typical electricity | Gas meters | Typical gas |
|---|---|---|---|---|
| PL14 5NP | 11 | 2,661 kWh | 8 | 12,632 kWh |
| PL14 5NT | 13 | 3,412 kWh | 13 | 11,352 kWh |
| PL14 5NR | 7 | 5,003 kWh | 7 | 13,422 kWh |
| PL14 5RY | 5 | 3,279 kWh | under 5 | |
| PL14 5PU | 5 | 2,883 kWh | 9 | 8,080 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 PL14.
Council tax
What each band costs in Cornwall in 2026-27: Band D £2,591 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,727 | £2,015 | £2,303 | £2,591 | £3,167 | £3,742 | £4,318 | £5,182 |
Homes by band in the neighbourhood around this street: most are in band B (35% of about 1,130 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: none recorded, though not every council has published theirs.
- 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
No street works under way, planned or finished in the last three months on this street, in permits up to 31 October 2026.
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 2 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 |
|---|---|---|---|
| PL14 5NP | not in 2 or 3 | 0 / 0 / 1 | unlikely |
| PL14 5NT | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| PL14 5NR | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| PL14 5RY | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| PL14 5NL | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| PL14 5PU | not in 2 or 3 | 0 / 0 / 1 | unlikely |
| PL14 5RE | not in 2 or 3 | 0 / 0 / 0 | 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
1 storm overflow within 1 km (0.6 miles) of the street's postcodes spilled 22 times, for 206 hours in all, in 2025. They discharge into Tributary of the River Tiddy.
| Overflow | Into | Spills | Hours | Distance |
|---|---|---|---|---|
| Pensilva Pumping Station South West Water | Tributary of the River Tiddy | 22 | 206 | 750 m (0.5 miles) |
A storm overflow lets sewage diluted with rainwater into a river, stream or the sea when heavy rain overwhelms the sewers, so the spills here affect the water they run into, not homes. A spill is counted the regulators' way: a first 12 hours, then each 24 hours it goes on.
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 30% or more: 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. Homes built here in recent decades should have radon protection under the building regulations (basic protection from 3%, full protection from 10%). 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 36 addresses are between 199 m and 215 m above sea level (208 m on average); the ground rises about 16 m from the lowest to the highest.
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| PL14 5NL | 100% | 50% | 50% | 0% |
| PL14 5NP | 91% | 18% | 18% | 0% |
| PL14 5NR | 100% | 0% | 0% | 0% |
| PL14 5NT | 100% | 0% | 0% | 0% |
| PL14 5PU | 100% | 100% | 100% | 0% |
| PL14 5RE | 100% | 97% | 97% | 0% |
| PL14 5RY | 67% | 0% | 0% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Liskeard 354,000 journeys in 2024–25 | 7.4 km (4.6 miles) |
| Coombe Junction Halt 220 journeys in 2024–25 | 8 km (5 miles) | |
| Menheniot 6,230 journeys in 2024–25 | 8.2 km (5.1 miles) | |
| Bus stops | 2 stops within 400 m (0.2 miles), 7 within 800 m (0.5 miles); nearest Industrial Estate Pensilva | 300 m |
| EV charging points | PoGo Charge | 6.5 km (4 miles) |
| Airport with scheduled flights | Cornwall Airport Newquay NQY | 42.3 km (26 miles) |
| Nearest large airport | Cardiff International Airport CWL | 125 km (77 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | Oak Tree Surgery Good Nov 2025 | 5.4 km (3.3 miles) |
| Pharmacies | Oak Tree Pharmacy | 5.4 km (3.3 miles) |
| NHS dentists | Liskeard Dental Centre | 5.4 km (3.4 miles) |
| Hospital | Liskeard Community Hospital | 5.3 km (3.3 miles) |
| Care homes | Eldon House Residential Home Good Nov 2021 | 2.1 km (1.3 miles) |
| Police station | Liskeard Police Station | 6.3 km (3.9 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Play area | 2 within 800 m (0.5 miles); nearest Unnamed 1,110 m² | 570 m (0.4 miles) |
| Playing field | 1 within 800 m (0.5 miles); nearest Unnamed 2.7 ha | 540 m (0.3 miles) |
Landmarks
The nearest historic landmark is Round called Roundabury, a scheduled monument, 1.4 km (0.9 miles) north-west. 1 listed building is within 1 km (0.6 miles).
| Name | What it is | From the middle of the street |
|---|---|---|
| Round called Roundabury | Scheduled monument | 1.4 km (0.9 miles) north-west |
| Name | What it is | From the middle of the street |
|---|---|---|
| Hatt Wood | Wood | 830 m (0.5 miles) south-west |
| Woolston Wood | Wood | 840 m (0.5 miles) south |
| Pentiddy Woods | Wood | 920 m (0.6 miles) south-west |
| Pentddy Community Woodland | Wood | 1 km (0.6 miles) west |
| Caradon Hill | Hill | 2.5 km (1.6 miles) north-west |
| Primrose Vale | Valley | 3.7 km (2.3 miles) north |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 3.2 | 40 | 10 |
| Fine particles (PM2.5) | 4.9 | 20 | 5 |
| Particles (PM10) | 8.9 | 40 | 15 |
All three are within both the UK limits and the WHO guidelines.
Road and rail noise
| Level | Road traffic | Railways |
|---|---|---|
| 55 to 59 | 1 | 0 |
| Under 55 | 35 | 36 |
1 of the street's 36 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 Cornwall: see them on the Cornwall page.
Nearest schools
| School | Phase | Ages | Distance | Inspection | Exam results |
|---|---|---|---|---|---|
| Pensilva Primary School | Primary | 4–11 | 670 m (0.4 miles) | Report card (Feb 2026): Curriculum and teaching: Expected standard; Achievement: Needs attention; Attendance and behaviour: Strong standard; Personal development and wellbeing: Expected standard; Inclusion: Expected standard; Leadership and governance: Expected standard; Early years: Expected standard; Safeguarding standards: Met | 14% at the expected standard in reading, writing and maths, 0% at the higher standard (2025; 36% in 2024 and 63% 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
1 nursery, pre-school or club within 1.5 km (0.9 miles), the nearest 750 m (0.5 miles) from the middle of the street.
| Provider | Kind | Places | Latest inspection | Distance |
|---|---|---|---|---|
| Pensilva Pre-School PL14 5PG | Sessional day care | 21 | Good (Jul 2021, overall grade under the previous framework) | 750 m (0.5 miles) |
Ofsted also registers 158 childminders and 20 home childcarers (nannies) in Cornwall. 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 |
|---|---|---|---|---|
| The Chalk Board PL14 5RE | Mobile caterer | 340 m | 5 Very good | 2 Jul 2026 |
| Millennium House PL14 5NF | Restaurant/Cafe/Canteen | 450 m (0.3 miles) | 3 Generally satisfactory | 27 Jun 2024 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 1 |
Most of these are attached to: On or near Pollards Close (1).
Road safety
1 collision in which someone was hurt was reported on and around the street in 2021 to 2025: 0 fatal, 0 serious and 1 slight. Most were on roads with a 60 mph limit.
| Year | Collisions | Fatal or serious |
|---|---|---|
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| Date | Severity | Who was hurt | Road | Conditions |
|---|---|---|---|---|
| 10 Jul 2021 14:02 | Slight | 2 people | Minor road, 60 mph | Daylight |
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
No traffic count point is within 500 m (0.3 miles) of the street's postcodes. The Department for Transport counts every motorway and A road and only a sample of minor roads, so a quiet residential street usually has none.
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 52 | 40 |
| Children under 15 | 11% | 17% |
| Aged 65 and over | 29% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 77% | 61% |
| Owned outright | 48% | 33% |
| Shared ownership | 0% | 1% |
| Social rented | 15% | 17% |
| Private rented | 8% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 49% | 57% |
| Unemployment (of those working or looking for work) | 6% | 6% |
| Retired (of adults) | 31% | 22% |
| Long-term sick or disabled (of adults) | 4% | 4% |
| Work mainly from home (of those in work) | 22% | 32% |
| Travel to work by car or van | 70% | 48% |
| By train, Underground, metro or tram | 1% | 4% |
| By any public transport, including bus | 1% | 8% |
| On foot or by bicycle | 4% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 47% | 65% |
| Work 30 km (19 miles) or more away | 20% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 27% | 34% |
| No qualifications | 17% | 18% |
| Apprenticeship as highest qualification | 8% | 5% |
| Main language English (aged 3 and over) | 100% | 91% |
| Cannot speak English well or at all | 0% | 2% |
Deprivation
The neighbourhood around this street is in decile 4 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
- PL14 5NP: 11 addresses of 12 in the postcode
- PL14 5NT: 11 addresses of 13 in the postcode
- PL14 5NR: 9 addresses of 10 in the postcode
- PL14 5RY: 2 addresses of 8 in the postcode
- PL14 5NL: 1 address of 7 in the postcode
- PL14 5PU: 1 address of 10 in the postcode
- PL14 5RE: 1 address of 73 in the postcode
Nearby streets
Quarry Lane · Pollards Close · Cotton Close · Pensilva Industrial Estate · Rosevear Close · Tenacres Lane · Amanda Way · Gooseberry Lane · Lower Middle Hill
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.