Cheyham Gardens Ewell
13 addresses across 2 postcodes (SM2), about 100 m long, classed as a local road. USRN 13900126.
- Sales: 11 recorded sales since 1995; in 2025 the median was £725,000 across 1 sale.
- Prices and rents: A typical home in Epsom and Ewell cost £566,163 in August 2026 (+3.2% on a year); private rents averaged £1,713 a month.
- Energy: 8 homes have an energy certificate (C: 4, E: 3, 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.
- Radon: Up to 1 to 3% of homes in the 1 km squares around it are estimated to be at or above the radon Action Level.
- Traffic: The busiest counted road within 500 m (0.3 miles), the A232, carries 11,592 motor vehicles a day on average (2025).
- Council tax: Most homes around it are in council tax band G; Band D in Epsom and Ewell costs £2,531 a year in 2026-27.
- Broadband: Gigabit broadband is available to 100% of premises.
- Transport: The nearest railway station is Cheam, about 1.1 km (0.7 miles) away in a straight line.
- Green space: The nearest park or garden, Warren Farm, is about 590 m (0.4 miles) away.
- Air: Background air pollution in 2024 was 11.7 µg/m³ of nitrogen dioxide and 7.8 of PM2.5, within UK legal limits.
- Height: Its addresses are 66 to 68 m above sea level.
- Noise: 1 of its 13 addresses is modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Cheam Family Practice, about 1.3 km (0.8 miles) away.
- People: About 780 people lived in the census areas around it in 2021; 95% of households owned their home and 47% of adults held a degree or other higher qualification.
- Crime: 7 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.
- Road safety: 3 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 Cheyham Gardens: its own records, questions to ask the seller and everything on this page, in one PDF. Choose the home
House sales on this street
| Year | Sales | Median price | Lowest | Highest |
|---|---|---|---|---|
| 2025 | 1 | £725,000 | £725,000 | £725,000 |
| 2017 | 1 | £560,000 | £560,000 | £560,000 |
| 2015 | 1 | £650,000 | £650,000 | £650,000 |
| 2014 | 1 | £540,000 | £540,000 | £540,000 |
| 2012 | 1 | £953,000 | £953,000 | £953,000 |
| 2011 | 1 | £485,000 | £485,000 | £485,000 |
| 2008 | 1 | £475,000 | £475,000 | £475,000 |
| 2007 | 1 | £440,000 | £440,000 | £440,000 |
| 2006 | 1 | £459,950 | £459,950 | £459,950 |
| 2005 | 2 | £316,500 | £315,000 | £318,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 10 Jun 2015 | 2 SM2 7NH | Detached | £650,000 | |
| 27 Feb 2014 | 4 SM2 7NH | Detached | £540,000 | |
| 11 Nov 2005 | 4 SM2 7NH | Detached | £318,000 | |
| 23 Oct 2017 | 5 SM2 7NH | Detached | £560,000 | |
| 7 Feb 2008 | 6 SM2 7NH | Detached | £475,000 | |
| 9 Nov 2012 | 7 SM2 7NH | Detached | £953,000 | |
| 28 Jun 2006 | 7 SM2 7NH | Detached | £459,950 | |
| 11 Apr 2025 | 9 SM2 7NH | Detached | £725,000 | |
| 24 Aug 2005 | 9 SM2 7NH | Detached | £315,000 | |
| 6 May 2011 | 10 SM2 7NH | Detached | £485,000 | |
| 21 Mar 2007 | 11 SM2 7NH | Detached | £440,000 |
House prices and rents in Epsom and Ewell
A typical home in Epsom and Ewell cost £566,163 in August 2026, 3.2% more than a year before. That is 10% more than five years earlier and 21% more than ten years earlier.
| Home | Typical price, Aug 2026 |
|---|---|
| Detached | £975,736 |
| Semi-detached | £647,950 |
| Terraced | £490,611 |
| Flat or maisonette | £299,227 |
| Bought by a first-time buyer | £421,646 |
Private renters in Epsom and Ewell paid £1,713 a month on average in September 2026, 4.1% more than a year before. That is 19% more than five years earlier.
| Home | Average rent a month, Sep 2026 |
|---|---|
| One bedroom | £1,197 |
| Two bedrooms | £1,498 |
| Three bedrooms | £1,896 |
| Four or more bedrooms | £2,632 |
Energy performance certificates
8 homes with a current certificate; median floor area 120 m². Most common: House, detached (4); Bungalow, detached (4). Built: 1950-1966 (4); 1930-1949 (2); 1976-1982 (1). Tenure at assessment: owner-occupied (5); rented (social) (1).
Each home's certificates and sales (8 addresses)
Gas and electricity use
Homes with gas used 20,306 kWh of it on average in 2024, 37% more than the district's 14,825 kWh, and 4,515 kWh of electricity, 17% more than the district's 3,862 kWh. There are gas meters for about 100% of the homes.
| Postcode | Electricity meters | Typical electricity | Gas meters | Typical gas |
|---|---|---|---|---|
| SM2 7NH | 12 | 4,019 kWh | 12 | 15,452 kWh |
| SM2 7NQ | 41 | 3,148 kWh | 41 | 19,245 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 SM2.
Council tax
What each band costs in Epsom and Ewell in 2026-27: Band D £2,531 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,687 | £1,968 | £2,250 | £2,531 | £3,093 | £3,656 | £4,218 | £5,062 |
Homes by band in the neighbourhood around this street: most are in band G (61% of about 660 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: 1 protected tree on or by this street.
- Green belt: no.
Brownfield land registered for housing within 1 km (0.6 miles)
- 18 Avenue Road, Belmont, permissioned (850 m (0.5 miles))
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
No address in this street's postcodes is in an area at high, medium or low risk of flooding from rivers, the sea or surface water. The rest are in areas at very low risk: less than a 0.1% (1 in 1,000) chance a year.
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.
Recorded floods
No recorded flood covers the centre of any of this street's postcodes.
Recorded floods are where floodwater was seen or surveyed after a flood. Many floods were never mapped, an outline over a postcode's centre does not mean every home in it flooded, and homes outside one may have. Ask the seller whether the home itself has flooded.
Coastal erosion
No projected coastal erosion zone is within 1 km (0.6 miles) of the street's postcodes.
Storm overflows
No storm overflow outlet is within 1 km (0.6 miles) of the street's postcodes.
Coal mining
No postcode centre on the street is in a coalfield: the Mining Remediation Authority records no coal mining risk here.
Radon
The highest radon potential in the 1 km squares around the street's postcodes is 1 to 3%: up to that share of homes there is estimated to be at or above the Action Level of 200 becquerels per cubic metre. At least part of that area is a radon Affected Area, where 1% or more of homes are.
Radon is a natural radioactive gas from the ground that can build up indoors; long exposure raises the risk of lung cancer. A three-month test with two small detectors is the only way to know a home's level, and a high level can usually be brought down with a sump or better ventilation. UKHSA sells a radon report for a single address from its detailed map at ukradon.org.
Historic landfill
No historic landfill site is within 500 m (0.3 miles) of the street's postcodes.
Height above sea level
The street's 13 addresses are between 66 m and 68 m above sea level (67 m on average).
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| SM2 7NH | 100% | 100% | 100% | 0% |
| SM2 7NQ | 100% | 100% | 100% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Cheam 933,000 journeys in 2024–25 | 1.1 km (0.7 miles) |
| Ewell East 490,000 journeys in 2024–25 | 1.3 km (0.8 miles) | |
| Belmont 200,000 journeys in 2024–25 | 1.7 km (1.1 miles) | |
| Bus stops | 6 stops within 400 m (0.2 miles), 12 within 800 m (0.5 miles); nearest Bramley Road East Ewell | 140 m |
| Bus or coach station | Banstead - Fir Tree Road | 2.3 km (1.4 miles) |
| Ferry terminal | Kingston Town End Pier Kingston Upon Thames | 8.8 km (5.5 miles) |
| Car parks | Kingsway Road Car Park | 1.2 km (0.7 miles) |
| EV charging points | 12 within 1.6 km (1 mile); nearest Ewhurst Close | 420 m (0.3 miles) |
| Airport with scheduled flights | London Heathrow Airport LHR | 21.5 km (13 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 1 practice within 1.6 km (1 mile); nearest Cheam Family Practice Good Jul 2026 | 1.3 km (0.8 miles) |
| Pharmacies | 2 pharmacies within 1.6 km (1 mile); nearest Mulgrave Road Pharmacy | 1.2 km (0.7 miles) |
| NHS dentists | 4 practices within 1.6 km (1 mile); nearest Howell Hill Dental Practice | 650 m (0.4 miles) |
| Hospital | The Royal Marsden Hospital (Sutton) | 2.1 km (1.3 miles) |
| Care homes | 8 homes within 1.6 km (1 mile); nearest Hendford Nursing Home Good Jun 2019 | 740 m (0.5 miles) |
| Police station | Sutton Police Station | 2.7 km (1.7 miles) |
| Cash machines | ATM | 1.2 km (0.7 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | 1 within 800 m (0.5 miles); nearest Warren Farm 24 ha | 590 m (0.4 miles) |
| Play area | Unnamed 4,630 m² | 1.5 km (1 mile) |
| Playing field | 2 within 800 m (0.5 miles); nearest Unnamed 3.5 ha | 250 m |
| Allotments | Cheam Court Allotments A 2,950 m² | 940 m (0.6 miles) |
Within 800 m (0.5 miles): 1 park or garden, 24 hectares in all.
Landmarks
The nearest historic landmark is Nonsuch Palace, its formal gardens and associated remains, and Cuddington medieval settlement, a scheduled monument, 1.4 km (0.9 miles) north-west. 4 listed buildings are within 1 km (0.6 miles).
| Name | What it is | From the middle of the street |
|---|---|---|
| Nonsuch Palace, its formal gardens and associated remains, and Cuddington medieval settlement | Scheduled monument | 1.4 km (0.9 miles) north-west |
| Nonsuch Park | Registered park or garden, Grade II | 1.4 km (0.9 miles) north-west |
| Tower of old church, Ewell | Scheduled monument | 1.8 km (1.1 miles) west |
| Milestone outside No. 135 Cheam Road, Cheam | Scheduled monument | 1.8 km (1.1 miles) north-east |
| Name | What it is | From the middle of the street |
|---|---|---|
| Howell Hill | Hill | 550 m (0.3 miles) west |
| The Wood | Wood | 1.5 km (0.9 miles) north |
| Oak Plantation | Wood | 1.7 km (1 mile) north-west |
| North Plantation | Wood | 1.8 km (1.1 miles) north |
| London Road Plantation | Wood | 1.9 km (1.2 miles) north-west |
| Stamford Pond | Lake or reservoir | 4.3 km (2.7 miles) west |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 11.7 | 40 | 10 |
| Fine particles (PM2.5) | 7.8 | 20 | 5 |
| Particles (PM10) | 12.0 | 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 |
|---|---|---|
| 55 to 59 | 1 | 0 |
| Under 55 | 12 | 13 |
1 of the street's 13 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 Epsom and Ewell: see them on the Epsom and Ewell page.
Nearest schools
| School | Phase | Ages | Distance | Inspection | Exam results |
|---|---|---|---|---|---|
| Cuddington Croft Primary School and Nursery | Primary | 3–11 | 470 m (0.3 miles) | No published inspection | 94% at the expected standard in reading, writing and maths, 31% at the higher standard (2025; 88% in 2024 and 85% in 2023) |
| Nonsuch High School for Girls | Secondary | 11–18 | 940 m (0.6 miles) | Report card (Feb 2026): Curriculum and teaching: Strong standard; Achievement: Strong standard; Attendance and behaviour: Exceptional; Personal development and wellbeing: Strong standard; Inclusion: Strong standard; Leadership and governance: Strong standard; Post-16 provision: Strong standard; Safeguarding standards: Met | GCSE 2026 (provisional): Attainment 8 81.8 (80.5 in 2025 and 81.3 in 2024); 100% grade 5+ in English and maths A level 2025: average grade A-; 58.9% AAB or better; progress above average |
| St Dunstan's Cheam CofE Primary School Church of England | Primary | 3–11 | 1.1 km (0.7 miles) | No published inspection | 73% at the expected standard in reading, writing and maths, 14% at the higher standard (2025; 65% in 2024 and 80% in 2023) |
| Avenue Primary Academy | Primary | 3–11 | 1.3 km (0.8 miles) | Outstanding (Jan 2024, overall grade under the previous framework) | 63% at the expected standard in reading, writing and maths, 27% at the higher standard (2025; 70% in 2024 and 69% in 2023) |
| North East Surrey College of Technology | 16 plus | 16–99 | 1.6 km (1 mile) | No published inspection | GCSE 2026 (provisional): Attainment 8 5.7 (4.2 in 2025); 0% grade 5+ in English and maths |
| Ewell Grove Primary and Nursery School | Primary | 3–11 | 1.9 km (1.2 miles) | Good (Jan 2022, overall grade under the previous framework) | None published |
| Overton Grange School | Secondary | 11–18 | 2 km (1.2 miles) | No overall grade (Dec 2024, graded inspection without an overall judgement): Quality of education: Requires improvement; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good | GCSE 2026 (provisional): Attainment 8 47.3 (46.8 in 2025 and 47.1 in 2024); 45% grade 5+ in English and maths A level 2025: average grade C; 8.2% AAB or better; progress below average |
| Cheam Fields Primary Academy | Primary | 3–11 | 2 km (1.2 miles) | No overall grade (Oct 2024, graded inspection without an overall judgement): Quality of education: Outstanding; Behaviour and attitudes: Outstanding; Personal development: Outstanding; Leadership and management: Outstanding | 84% at the expected standard in reading, writing and maths, 27% at the higher standard (2025; 87% in 2024 and 87% 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
The ten nearest nurseries, pre-schools and clubs are all within 1.4 km (0.9 miles); the nearest is 100 m from the middle of the street.
| Provider | Kind | Places | Latest inspection | Distance |
|---|---|---|---|---|
| Little Fishes Pre-School SM2 7HS | Sessional day care | 26 | Good (Feb 2022, overall grade under the previous framework) | 100 m |
| Nuffy Bear Day Nursery SM2 7BJ | Full day care | 36 | Good (Aug 2023, overall grade under the previous framework) | 930 m (0.6 miles) |
| MultiSports Sutton and Cheam SM3 8AB | Sessional day care (over fives) | Not inspected yet | 940 m (0.6 miles) | |
| Snapdragons Playsafe Club SM3 8DF | Out-of-school day care | 38 | Not inspected yet | 1 km (0.6 miles) |
| Busy Bees at Cheam SM3 8QL | Full day care | 83 | Good (Jul 2024, overall grade under the previous framework) | 1 km (0.6 miles) |
| Kumon Belmont Study Centre SM2 7HF | Out-of-school day care (over fives) | Not inspected yet | 1 km (0.6 miles) | |
| Jelly Beans Ltd SM2 7HF | Sessional day care | 75 | Good (Jul 2023, overall grade under the previous framework) | 1 km (0.6 miles) |
| Glaisdale Day Nursery SM2 7AG | Full day care | 110 | Jan 2026: Strong standard in 6 areas | 1.1 km (0.7 miles) |
| Nonsuch Park Forest School Nursery Lodge SM3 8AL | Full day care | 63 | Outstanding (Nov 2023, overall grade under the previous framework) | 1.3 km (0.8 miles) |
| Little Chicks After School Club SM2 6HU | Out-of-school day care | 70 | Not inspected yet | 1.4 km (0.9 miles) |
Ofsted also registers 866 childminders and 208 home childcarers (nannies) in Surrey. 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 |
|---|---|---|---|---|
| Little Fishes Pre-School SM2 7HS | Hospitals/Childcare/Caring Premises | 100 m | 5 Very good | 22 Oct 2025 |
| St Pauls Church SM2 7HS | Restaurant/Cafe/Canteen | 100 m | 5 Very good | 2 Dec 2025 |
| Sutton And Epsom Rugby Club SM2 7NF | Restaurant/Cafe/Canteen | 270 m | 5 Very good | 14 Dec 2024 |
| Cheam Fields Club SM2 7PD | Other catering premises | 470 m (0.3 miles) | 5 Very good | 15 Apr 2025 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 2 |
| Vehicle crime | 2 |
| Anti-social behaviour | 2 |
| Public order | 1 |
Most of these are attached to: On or near Cheyham Gardens (3); On or near Hays Walk (2); On or near Nonsuch Walk (1); On or near Northey Avenue (1).
Road safety
3 collisions in which someone was hurt were reported on and around the street in 2021 to 2025: 0 fatal, 1 serious and 2 slight, in which 1 person was seriously hurt. 33% happened in the dark, and 33% on a wet or icy road. Most were on roads with a 30 mph limit.
| Year | Collisions | Fatal or serious |
|---|---|---|
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 1 |
| Date | Severity | Who was hurt | Road | Conditions |
|---|---|---|---|---|
| 17 Jun 2025 08:32 | Serious | 1 person | Minor road, 30 mph | Daylight |
| 2 Mar 2025 08:00 | Slight | 1 person | Minor road, 30 mph | Daylight |
| 24 Mar 2023 21:04 | Slight | 3 people | Minor road, 30 mph | Dark, street lights on, wet road |
Only collisions in which someone was hurt and which the police were told about are here: damage-only collisions and near misses are not, and some injuries are never reported. Positions are recorded by the police, usually to within a few metres. Each year's figures are published the following September.
Traffic on nearby roads
The busiest counted road within 500 m (0.3 miles) is the A232 between Northey Ave roundabout and LA Boundary, with 11,592 motor vehicles a day on average in 2025, 130 m from the street's postcodes.
| Road | Between | Vehicles a day | Lorries | Ten years before | Distance |
|---|---|---|---|---|---|
| A232 | Northey Ave roundabout to LA Boundary | 11,592 estimated; counted 2018 | 2% | -3% since 2015 | 130 m |
| Minor road | Not recorded | 484 counted 2025 | 0% | 190 m |
Each figure is the annual average daily flow: the motor vehicles passing the count point, both ways, on an average day of the year. A point is counted by hand on a weekday every few years and estimated from the trend on similar roads in between. Lorries are heavy goods vehicles, as a share of all motor vehicles.
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 48 | 40 |
| Children under 15 | 16% | 17% |
| Aged 65 and over | 24% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 95% | 61% |
| Owned outright | 47% | 33% |
| Shared ownership | 0% | 1% |
| Social rented | under 1% | 17% |
| Private rented | 5% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 57% | 57% |
| Unemployment (of those working or looking for work) | 3% | 6% |
| Retired (of adults) | 25% | 22% |
| Long-term sick or disabled (of adults) | 2% | 4% |
| Work mainly from home (of those in work) | 48% | 32% |
| Travel to work by car or van | 41% | 48% |
| By train, Underground, metro or tram | 4% | 4% |
| By any public transport, including bus | 5% | 8% |
| On foot or by bicycle | 5% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 76% | 65% |
| Work 30 km (19 miles) or more away | 4% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 47% | 34% |
| No qualifications | 8% | 18% |
| Apprenticeship as highest qualification | 3% | 5% |
| Main language English (aged 3 and over) | 93% | 91% |
| Cannot speak English well or at all | 1% | 2% |
Deprivation
The neighbourhood around this street is in decile 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.
What has changed
Nothing new since the change feed started on 30 October 2026. New sales and energy certificates, and hygiene ratings, school inspections and flood figures nearby, will be listed here as the sources update.
Postcodes on this street
Nearby streets
Hays Walk · Northey Avenue · Cheam Road · Nonsuch Walk · Harefield Avenue · Buckland Road · Abinger Avenue · Rugby Lane · Ranmore Road · West Drive · Bramley Road
All the streets in SM2 and across Epsom and Ewell.
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.