Bloomfield Terrace Tipton, Sandwell
30 addresses across 5 postcodes (DY4), about 230 m long, classed as a local road. USRN 33605700.
- Sales: 8 recorded sales since 1995; in 2023 the median was £134,000 across 2 sales.
- Prices and rents: A typical home in Sandwell cost £207,065 in August 2026 (+0% on a year); private rents averaged £953 a month.
- Energy: 13 homes have an energy certificate (C: 3, D: 8, E: 1, G: 1).
- Flood: 28 addresses on its postcodes are in areas 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.
- Coal mining: 2 of its postcodes are in a coal mining high risk area; ask for a coal mining search.
- Landfill: 7 historic landfill sites within 500 m (0.3 miles) of its postcodes; the nearest, Bloomfield Road Landfill Site, lies under part of it.
- Storm overflows: 3 storm overflows within 1 km (0.6 miles) spilled 9 times (11 hours) in 2025.
- Council tax: Most homes around it are in council tax band A; Band D in Sandwell costs £2,244 a year in 2026-27.
- Broadband: Gigabit broadband is available to 89% to 100% of premises.
- Transport: The nearest railway station is Tipton, about 800 m (0.5 miles) away in a straight line.
- Green space: The nearest park or garden is about 330 m away.
- Air: Background air pollution in 2024 was 14.5 µg/m³ of nitrogen dioxide and 7.8 of PM2.5, within UK legal limits.
- Height: Its addresses are 141 to 147 m above sea level.
- Noise: 8 of its 32 addresses are modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Black Country Family Practice, about 710 m (0.4 miles) away, with 3 practices within 1.6 km (1 mile).
- People: About 1,190 people lived in the census areas around it in 2021; 62% of households owned their home and 20% of adults held a degree or other higher qualification.
- Crime: 40 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.
- Road safety: 4 collisions in which someone was hurt were reported on and around it in 2021 to 2025, 1 of them fatal or serious.
£9.99 The Street Dossier Full Report for a home on Bloomfield Terrace: its own records, questions to ask the seller and everything on this page, in one PDF. Choose the home
Sales on this street
| Year | Sales | Median price | Lowest | Highest |
|---|---|---|---|---|
| 2023 | 2 | £134,000 | £128,000 | £140,000 |
| 2021 | 1 | £142,000 | £142,000 | £142,000 |
| 2015 | 1 | £85,000 | £85,000 | £85,000 |
| 2013 | 1 | £124,995 | £124,995 | £124,995 |
| 2008 | 1 | £105,000 | £105,000 | £105,000 |
| 2005 | 1 | £36,000 | £36,000 | £36,000 |
| 1995 | 1 | £40,500 | £40,500 | £40,500 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 1 Dec 2023 | 2 DY4 9BX | Terraced | £140,000 | |
| 30 Jan 2023 | 2 DY4 9BX | Terraced | £128,000 | |
| 9 Dec 2021 | 1 DY4 9BX | Terraced | £142,000 | |
| 29 Apr 2015 | 2 DY4 9BX | Terraced | £85,000 | |
| 11 Apr 2013 | 24 DY4 9BX | Detached | £124,995 | |
| 12 Mar 2008 | 27 DY4 9BX | Semi-detached | £105,000 | |
| 17 Jan 2005 | 2 DY4 9BX | Terraced | £36,000 | |
| 25 Aug 1995 | 28 DY4 9BX | Semi-detached | £40,500 |
House prices and rents in Sandwell
A typical home in Sandwell cost £207,065 in August 2026, the same as a year before. That is 21% more than five years earlier and 67% more than ten years earlier.
| Home | Typical price, Aug 2026 |
|---|---|
| Detached | £329,048 |
| Semi-detached | £228,439 |
| Terraced | £193,105 |
| Flat or maisonette | £111,697 |
| Bought by a first-time buyer | £196,942 |
Private renters in Sandwell paid £953 a month on average in September 2026, 7.3% more than a year before. That is 43% more than five years earlier.
| Home | Average rent a month, Sep 2026 |
|---|---|
| One bedroom | £680 |
| Two bedrooms | £851 |
| Three bedrooms | £1,015 |
| Four or more bedrooms | £1,405 |
Energy performance certificates
13 homes with a current certificate; median floor area 70 m². Most common: House, end-terrace (5); House, mid-terrace (4); House, semi-detached (3). Built: 1930-1949 (7); 1900-1929 (3); 1967-1975 (3). Tenure at assessment: owner-occupied (6); rented (social) (4).
Each home's certificates and sales (13 addresses)
Council tax
What each band costs in Sandwell in 2026-27: Band D £2,244 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,496 | £1,746 | £1,995 | £2,244 | £2,743 | £3,242 | £3,741 | £4,489 |
Homes by band in the neighbourhoods around this street: most are in band A (40% of about 1,240 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.
Brownfield land registered for housing within 1 km (0.6 miles)
- Land & premises, Barnfield Road, Brook Street & Bloomfield Road. (150 m)
- Brook Street Business Centre , Brook Street Community Centre, 196- 200 Bloomfield Road, DY4 9 (200 m)
- Barnfield Trading Estate, Tipton (270 m)
- Land at Doulton Way, between Factory Road, Bloomfield Road, & railway line, Tipton. (320 m)
- Hurst Lane / Birmingham Canal / Sedgley Road West tipton (460 m (0.3 miles))
- Brown Lion Street/ Bloomfield Road: up to 28 homes, permissioned (480 m (0.3 miles))
- Land at Birmingham New Road and Sedgley Road West, Coseley, Tipton: up to 472 homes, permissioned (500 m (0.3 miles))
- 117 Bloomfield Road Tipton: up to 9 homes, permissioned (520 m (0.3 miles))
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, 8 addresses are in areas at high risk, 20 at medium risk and 79 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 38 homes the Environment Agency counts, 0 are in areas at high risk, 8 medium, 30 low and 0 very low.
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 2. Zone 2 is between 0.1% and 1% a year from rivers (0.1% and 0.5% from the sea), ignoring defences.
| Postcode | Planning zone | Addresses at high / medium / low risk | Groundwater |
|---|---|---|---|
| DY4 9BX | zone 2 | 2 / 9 / 7 | unlikely |
| DY4 9AH | not in 2 or 3 | 2 / 3 / 1 | unlikely |
| DY4 9DD | zone 2 | 4 / 8 / 51 | unlikely |
| DY4 9BU | zone 2 | 0 / 0 / 20 | unlikely |
| DY4 9BY | 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.
Storm overflows
3 storm overflows within 1 km (0.6 miles) of the street's postcodes spilled 9 times, for 11 hours in all, in 2025. They discharge into Tributary of Swan Brook, River Tame.
| Overflow | Into | Spills | Hours | Distance |
|---|---|---|---|---|
| Bean Road Cso Severn Trent Water | Tributary of Swan Brook | 0 | 0 | 200 m |
| Wood Street 26 Cso Severn Trent Water | Tributary of Swan Brook | 7 | 3 | 390 m |
| Tipton - Denbigh Road (Cso) Severn Trent Water; monitored 82% of the year | River Tame | 2 | 8 | 880 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
2 of the street's 5 postcodes are in a coal mining high risk area, where coal mining features at or near the surface, such as shallow workings or old mine shafts, are recorded or likely and could affect the ground. 3 more are elsewhere in the coalfield, at low risk.
Ask your conveyancer for a coal mining search (CON29M) on the home: it says what is recorded beneath and near it, and whether there have been claims for subsidence damage.
Historic landfill
7 historic landfill sites are within 500 m (0.3 miles) of the street's postcodes: the nearest lies under part of it.
| Site | Waste went in | Waste | Distance |
|---|---|---|---|
| Bloomfield Road Landfill Site A J Mucklows Site, Bloomfield Road, Tipton, West Midlands | 1979 to 1984 | Inert, industrial | Under it |
| Barnfield Road Landfill Site Barnfield Road, Sandwell, West Midlands | 1974 to 1980 | Inert, industrial, commercial, household, special (hazardous); gas control on site | 110 m |
| Factory Road Landfill Site Bullers Engineering Works, Factory Road, Tipton, West Midlands | 1986 to 1988 | Inert, industrial | 150 m |
| Fountain Lane Budden Road, Fountain Lane, Wallbrook, Tipton, Dudley, West Midlands | from 1950 | Inert, industrial | 190 m |
| Land Off Central Drive and Martin Close Central Drive, Coseley, Dudley, West Midlands | 1976 to 1978 | Inert, industrial, commercial, household, liquid sludge | 220 m |
| Alexandra Road Landfill Site Land at Alexandra Road, Tipton, Sandwell | until 1979 | Inert, industrial | 340 m |
| Fountain Lane Walbrook, Coseley, Dudley, West Midlands | 1992 to 1994 | Inert, industrial | 430 m (0.3 miles) |
Closed tips can give off gas (methane and carbon dioxide) and leak into the ground for years. An environmental search, which conveyancers usually order, looks at landfill and contaminated land around the home; the council keeps a register of land it has found to be contaminated.
Height above sea level
The street's 32 addresses are between 141 m and 147 m above sea level (143 m on average); the ground rises about 6 m from the lowest to the highest.
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| DY4 9AH | 100% | 89% | 89% | 0% |
| DY4 9BU | 100% | 100% | 100% | 0% |
| DY4 9BX | 100% | 100% | 100% | 0% |
| DY4 9BY | 100% | 100% | 100% | 0% |
| DY4 9DD | 100% | 98% | 98% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Tipton 359,000 journeys in 2024–25 | 800 m (0.5 miles) |
| Coseley 520,000 journeys in 2024–25 | 1.4 km (0.8 miles) | |
| Dudley Port 376,000 journeys in 2024–25 | 2.1 km (1.3 miles) | |
| Underground, metro or tram | Birmingham New Road (West Midlands Metro) | 1.7 km (1.1 miles) |
| Sedgley Road (West Midlands Metro) | 1.7 km (1.1 miles) | |
| Tipton Road (West Midlands Metro) | 1.9 km (1.2 miles) | |
| Bus stops | 4 stops within 400 m (0.2 miles), 34 within 800 m (0.5 miles); nearest Railway Bridge Bloomfield | 170 m |
| Bus or coach station | Dudley Bus Station | 2.6 km (1.6 miles) |
| Car parks | Stafford Street Car Park | 2.9 km (1.8 miles) |
| EV charging points | 2 within 1.6 km (1 mile); nearest Osprey Charging Station | 1 km (0.6 miles) |
| Airport with scheduled flights | Birmingham Airport BHX | 24 km (15 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 3 practices within 1.6 km (1 mile); nearest Black Country Family Practice Good Nov 2025 | 710 m (0.4 miles) |
| Pharmacies | 3 pharmacies within 1.6 km (1 mile); nearest Brutons Pharmacy (Neptune) | 710 m (0.4 miles) |
| NHS dentists | 5 practices within 1.6 km (1 mile); nearest Dental Surgery | 690 m (0.4 miles) |
| Hospital | Guest Hospital | 1.8 km (1.1 miles) |
| Care homes | 6 homes within 1.6 km (1 mile); nearest Parkside Health Care Limited Good Jul 2019 | 630 m (0.4 miles) |
| Police station | Tipton Police Station | 1.7 km (1.1 miles) |
| Cash machines | 3 machines within 800 m (0.5 miles); nearest Bloomfield Convenience Store Cashzone | 690 m (0.4 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | 2 within 800 m (0.5 miles); nearest Unnamed 17 ha | 330 m |
| Play area | 1 within 800 m (0.5 miles); nearest Unnamed 250 m² | 80 m |
| Playing field | Unnamed 4,750 m² | 1 km (0.6 miles) |
| Allotments | 2 within 800 m (0.5 miles); nearest Unnamed 1.2 ha | 680 m (0.4 miles) |
Within 800 m (0.5 miles): 2 parks and gardens, 17 hectares in all.
Landmarks
The nearest historic landmark is Victoria Park, Tipton, a registered park or garden (Grade II), 1.4 km (0.9 miles) south-east. 11 listed buildings are within 1 km (0.6 miles).
| Name | What it is | From the middle of the street |
|---|---|---|
| Victoria Park, Tipton | Registered park or garden, Grade II | 1.4 km (0.9 miles) south-east |
| Lime working remains in Dudley | Scheduled monument | 1.6 km (1 mile) south-west |
| Priory Park, Dudley | Registered park or garden, Grade II | 2.1 km (1.3 miles) south |
| Name | What it is | From the middle of the street |
|---|---|---|
| Rounds Hill | Hill | 750 m (0.5 miles) north-west |
| Watery Lane Junction | Lake or reservoir | 1 km (0.6 miles) south-east |
| Dudley Junction | Lake or reservoir | 1.1 km (0.7 miles) south |
| Kettle's Hill | Hill | 1.4 km (0.8 miles) south-west |
| Weddell Wynd Community Woodland | Wood | 1.6 km (1 mile) north-east |
| The Gorge | Valley | 2.5 km (1.6 miles) north-west |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 14.5 | 40 | 10 |
| Fine particles (PM2.5) | 7.8 | 20 | 5 |
| Particles (PM10) | 12.4 | 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 |
|---|---|---|
| 65 to 69 | 3 | 2 |
| 60 to 64 | 0 | 6 |
| 55 to 59 | 5 | 8 |
| Under 55 | 24 | 16 |
8 of the street's 32 addresses are modelled at 55 dB or more from road traffic, and 16 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 Sandwell: see them on the Sandwell page.
Nearest schools
| School | Phase | Ages | Distance | Inspection |
|---|---|---|---|---|
| St Pauls Church of England Academy | Primary | 3–11 | 700 m (0.4 miles) | No published inspection |
| Foxyards Primary School | Primary | 3–11 | 790 m (0.5 miles) | Good (Nov 2023, overall grade under the previous framework) |
| Wallbrook Primary Academy | Primary | 3–11 | 1 km (0.6 miles) | Good (Oct 2023, overall grade under the previous framework) |
| Silvertrees Academy | Primary | 3–7 | 1.1 km (0.7 miles) | No overall grade (Oct 2024, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Good; Personal development: Outstanding; Leadership and management: Good |
| Tipton Green Junior School | Primary | 7–11 | 1.1 km (0.7 miles) | Report card (Mar 2026): Curriculum and teaching: Expected standard; Achievement: Expected standard; Attendance and behaviour: Expected standard; Personal development and wellbeing: Strong standard; Inclusion: Expected standard; Leadership and governance: Expected standard; Safeguarding standards: Met |
| Summerhill Primary Academy | Primary | 3–11 | 1.2 km (0.7 miles) | Report card (May 2026): Curriculum and teaching: Expected standard; Achievement: Needs attention; Attendance and behaviour: Expected standard; Personal development and wellbeing: Expected standard; Inclusion: Strong standard; Leadership and governance: Expected standard; Early years: Expected standard; Safeguarding standards: Met |
| Christ Church CofE Primary School Church of England | Primary | 3–11 | 1.3 km (0.8 miles) | Report card (Mar 2026): Curriculum and teaching: Needs attention; Achievement: Needs attention; Attendance and behaviour: Needs attention; Personal development and wellbeing: Expected standard; Inclusion: Expected standard; Leadership and governance: Needs attention; Early years: Needs attention; Safeguarding standards: Met |
| Bramford Primary School | Primary | 3–11 | 1.6 km (1 mile) | No published inspection |
| Glebefields Primary School | Primary | 3–11 | 1.6 km (1 mile) | No overall grade (Mar 2025, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good |
| Q3 Academy Tipton | Secondary | 11–19 | 1.7 km (1.1 miles) | No overall grade (Apr 2025, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good |
| Joseph Turner Primary School | Primary | 3–11 | 1.8 km (1.1 miles) | Good (Mar 2024, overall grade under the previous framework) |
| Wednesbury Oak Academy | Primary | 3–11 | 1.8 km (1.1 miles) | Report card (Mar 2026): Curriculum and teaching: Expected standard; Achievement: Expected standard; Attendance and behaviour: Expected standard; Personal development and wellbeing: Strong standard; Inclusion: Expected standard; Leadership and governance: Expected standard; Early years: Strong standard; Safeguarding standards: Met |
Food hygiene ratings nearby
| Business | Type | Distance | Rating | Rated |
|---|---|---|---|---|
| Sk fryday chippy & off licence ltd DY4 9BS | Takeaway/sandwich shop | 80 m | 5 Very good | 14 Jan 2025 |
| Tipton Green College DY4 9ER | School/college/university | 100 m | 5 Very good | 10 Feb 2026 |
| Peachy Sweets WM LTD DY4 9AH | Retailers - other | 150 m | 5 Very good | 3 Jun 2026 |
| Keenans Foods DY4 9DD | Retailers - other | 200 m | 5 Very good | 15 Feb 2023 |
| Signature Events DY4 9DD | Mobile caterer | 200 m | Awaiting inspection |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 19 |
| Criminal damage and arson | 7 |
| Other crime | 3 |
| Vehicle crime | 3 |
| Burglary | 3 |
| Other theft | 2 |
| Drugs | 1 |
| Shoplifting | 1 |
| Public order | 1 |
Most of these are attached to: On or near Bloomfield Road (11); On or near Oak Road (10); On or near Lilac Avenue (6); On or near A4037 (4); On or near Rollers Way (4).
Road safety
4 collisions in which someone was hurt were reported on and around the street in 2021 to 2025: 0 fatal, 1 serious and 3 slight, in which 1 person was seriously hurt. 1 involved a cyclist; 2 involved a motorcyclist. 25% happened in the dark. Most were on roads with a 30 mph limit.
| Year | Collisions | Fatal or serious |
|---|---|---|
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 2 | 1 |
| Date | Severity | Who was hurt | Road | Conditions |
|---|---|---|---|---|
| 13 Jun 2025 11:45 | Slight | 1 person | A4037, 30 mph | Daylight |
| 14 May 2025 20:40 | Serious | 1 person: 1 motorcyclist | A4037, 30 mph | Daylight |
| 2 Jun 2024 12:00 | Slight | 1 person: 1 motorcyclist | A4037, 30 mph | Daylight |
| 3 Sep 2023 20:10 | Slight | 1 person: 1 cyclist | A4037, 30 mph | Dark |
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.
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 35 | 40 |
| Children under 15 | 24% | 17% |
| Aged 65 and over | 10% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 62% | 61% |
| Owned outright | 23% | 33% |
| Shared ownership | 0% | 1% |
| Social rented | 26% | 17% |
| Private rented | 12% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 60% | 57% |
| Unemployment (of those working or looking for work) | 8% | 6% |
| Retired (of adults) | 13% | 22% |
| Long-term sick or disabled (of adults) | 6% | 4% |
| Work mainly from home (of those in work) | 19% | 32% |
| Travel to work by car or van | 66% | 48% |
| By train, Underground, metro or tram | 3% | 4% |
| By any public transport, including bus | 6% | 8% |
| On foot or by bicycle | 8% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 73% | 65% |
| Work 30 km (19 miles) or more away | 5% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 20% | 34% |
| No qualifications | 30% | 18% |
| Apprenticeship as highest qualification | 5% | 5% |
| Main language English (aged 3 and over) | 92% | 91% |
| Cannot speak English well or at all | 2% | 2% |
Deprivation
The 2 neighbourhoods around this street are in deciles 2 to 3 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
- DY4 9BX: 24 addresses
- DY4 9AH: 2 addresses of 50 in the postcode
- DY4 9DD: 2 addresses of 131 in the postcode
- DY4 9BU: 1 address of 27 in the postcode
- DY4 9BY: 1 address of 13 in the postcode
Nearby streets
Oak Road · Lilac Avenue · Brook Street · Rollers Way · Speed Road · Barnfield Road · Puddlers Drive · Ramsay Road · Dolton Way · Joseph Hall Drive · Sir Galahad Walk · Shinglers Drive
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.