Crawford Road Hatfield
211 addresses across 5 postcodes (AL10), about 850 m (0.5 miles) long, classed as a local road. USRN 43004629.
- Sales: 211 recorded sales since 1995; in 2026 the median was £432,500 across 2 sales.
- Energy: 137 homes have an energy certificate (A: 1, B: 3, C: 51, D: 63, E: 18, 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.
- Council tax: Most homes around it are in council tax band D; Band D in Welwyn Hatfield costs £2,452 a year in 2026-27.
- Broadband: Gigabit broadband is available to 75% to 100% of premises.
- Transport: The nearest railway station is Hatfield (Herts), about 940 m (0.6 miles) away in a straight line.
- Green space: The nearest park or garden, Coronation Gardens, is about 420 m (0.3 miles) away.
- Air: Background air pollution in 2024 was 12.4 µg/m³ of nitrogen dioxide and 7.9 of PM2.5, within UK legal limits.
- Height: Its addresses are 77 to 82 m above sea level.
- Noise: 31 of its 211 addresses are modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Wrafton House Surgery, about 150 m away, with 3 practices within 1.6 km (1 mile).
- People: About 1,030 people lived in the census areas around it in 2021; 65% of households owned their home and 31% of adults held a degree or other higher qualification.
- Crime: 135 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.
Sales on this street
| Year | Sales | Median price | Lowest | Highest |
|---|---|---|---|---|
| 2026 | 2 | £432,500 | £370,000 | £495,000 |
| 2025 | 5 | £375,000 | £192,000 | £535,000 |
| 2024 | 3 | £422,000 | £415,000 | £425,000 |
| 2023 | 6 | £460,000 | £400,000 | £555,000 |
| 2022 | 4 | £403,500 | £320,000 | £490,000 |
| 2021 | 8 | £400,000 | £170,000 | £440,000 |
| 2020 | 3 | £335,000 | £310,000 | £435,000 |
| 2019 | 6 | £285,000 | £180,000 | £415,000 |
| 2018 | 4 | £351,000 | £320,000 | £430,000 |
| 2017 | 4 | £362,500 | £305,000 | £395,000 |
| 2016 | 7 | £365,000 | £355,000 | £415,000 |
| 2015 | 8 | £317,500 | £245,000 | £350,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 27 May 2026 | 87 AL10 0PF | Semi-detached | £495,000 | |
| 9 Mar 2026 | 155 AL10 0PB | Semi-detached | £370,000 | |
| 29 Jan 2026 | 8 AL10 0PG | Semi-detached | £380,000 | Not a standard sale (repossession, buy-to-let or transfer). |
| 20 Nov 2025 | 100 AL10 0PE | Semi-detached | £395,000 | |
| 6 Oct 2025 | 13 AL10 0PF | Semi-detached | £350,000 | |
| 6 Jun 2025 | 99 AL10 0PF | Semi-detached | £535,000 | |
| 28 Mar 2025 | 6B AL10 0PG | Flat or maisonette | £192,000 | Leasehold. |
| 25 Mar 2025 | 51 AL10 0PF | Semi-detached | £375,000 | |
| 14 Mar 2025 | 76 AL10 0PE | Semi-detached | £385,000 | Not a standard sale (repossession, buy-to-let or transfer). |
| 28 Oct 2024 | 69 AL10 0PF | Semi-detached | £422,000 | |
| 7 Oct 2024 | 65 AL10 0PF | Semi-detached | £415,000 | |
| 9 Sep 2024 | 151 AL10 0PB | Semi-detached | £425,000 | |
| 10 Oct 2023 | 164 AL10 0PA | Semi-detached | £555,000 | |
| 22 Sep 2023 | 101 AL10 0PF | Semi-detached | £400,000 | |
| 23 Jun 2023 | 78 AL10 0PE | Semi-detached | £435,000 | |
| 26 May 2023 | 27 AL10 0PF | Semi-detached | £435,000 | |
| 21 Mar 2023 | 94 AL10 0PE | Semi-detached | £485,000 | |
| 13 Feb 2023 | 183 AL10 0PB | Semi-detached | £515,000 | |
| 5 Aug 2022 | 122 AL10 0PE | Semi-detached | £490,000 | |
| 20 Apr 2022 | 58 AL10 0PE | Semi-detached | £432,000 | |
| 14 Apr 2022 | 4 AL10 0PG | Other | £60,000 | Not a standard sale (repossession, buy-to-let or transfer). |
| 12 Apr 2022 | 100 AL10 0PE | Semi-detached | £320,000 | |
| 5 Apr 2022 | 138 AL10 0PA | Semi-detached | £375,000 | |
| 18 Nov 2021 | 25 AL10 0PF | Semi-detached | £415,000 | |
| 19 Oct 2021 | 23 AL10 0PF | Semi-detached | £400,000 | |
| 28 Sep 2021 | 108 AL10 0PE | Terraced | £440,000 | |
| 28 Sep 2021 | 136 AL10 0PA | Semi-detached | £385,000 | |
| 30 Jun 2021 | 65 AL10 0PF | Semi-detached | £400,000 | |
| 30 Apr 2021 | FLAT, 203 AL10 0PB | Flat or maisonette | £170,000 | Leasehold. |
| 14 Apr 2021 | 44 AL10 0PE | Semi-detached | £450,000 | Not a standard sale (repossession, buy-to-let or transfer). |
| 5 Mar 2021 | 52 AL10 0PE | Semi-detached | £369,500 | |
| 26 Feb 2021 | 105 AL10 0PF | Semi-detached | £434,000 | |
| 6 Oct 2020 | 174 AL10 0PA | Terraced | £225,000 | Not a standard sale (repossession, buy-to-let or transfer). |
| 10 Sep 2020 | 117 AL10 0PF | Semi-detached | £435,000 | |
| 7 May 2020 | 152 AL10 0PA | Terraced | £310,000 | |
| 11 Mar 2020 | 6C AL10 0PG | Flat or maisonette | £185,000 | Leasehold. Not a standard sale (repossession, buy-to-let or transfer). |
| 11 Mar 2020 | 6 AL10 0PG | Flat or maisonette | £170,000 | Leasehold. Not a standard sale (repossession, buy-to-let or transfer). |
| 21 Feb 2020 | 157 AL10 0PB | Semi-detached | £335,000 | |
| 20 Dec 2019 | 29 AL10 0PF | Semi-detached | £350,000 | Not a standard sale (repossession, buy-to-let or transfer). |
| 1 Nov 2019 | 6A AL10 0PG | Flat or maisonette | £220,000 | Leasehold. |
| 27 Sep 2019 | 6B AL10 0PG | Flat or maisonette | £180,000 | Leasehold. |
| 21 Aug 2019 | 69 AL10 0PF | Semi-detached | £362,000 | |
| 17 Jul 2019 | 86 AL10 0PE | Semi-detached | £245,000 | |
| 22 Mar 2019 | 60 AL10 0PE | Semi-detached | £325,000 | |
| 10 Jan 2019 | 83 AL10 0PF | Semi-detached | £415,000 | |
| 29 Sep 2018 | 19 AL10 0PF | Terraced | £320,000 | |
| 22 Aug 2018 | 94 AL10 0PE | Semi-detached | £430,000 | |
| 18 Jul 2018 | 68 AL10 0PE | Semi-detached | £342,000 | |
| 1 Mar 2018 | 4 AL10 0PG | Other | £375,000 | Not a standard sale (repossession, buy-to-let or transfer). |
| 18 Jan 2018 | 168 AL10 0PA | Semi-detached | £360,000 |
Energy performance certificates
137 homes with a current certificate; median floor area 73 m². Most common: House, semi-detached (100); Flat (15); House, mid-terrace (13). Built: 1930-1949 (88); 1950-1966 (31); 1900-1929 (7). Tenure at assessment: owner-occupied (64); rented (social) (31); rented (private) (23).
Each home's certificates and sales (61 addresses)
- 1, Crawford Road
- 6, Crawford Road
- 6a, Crawford Road
- 6b, Crawford Road
- 6c, Crawford Road
- 10a, Crawford Road
- 10b Crawford Road
- 14, Crawford Road
- 15, Crawford Road
- 17, Crawford Road
- 18, Crawford Road
- 19, Crawford Road
- 20, Crawford Road
- 26, Crawford Road
- 27, Crawford Road
- 29, Crawford Road
- 34, Crawford Road
- 36, Crawford Road
- 37, Crawford Road
- 41, Crawford Road
- 47, Crawford Road
- 48, Crawford Road
- 60, Crawford Road
- 63, Crawford Road
- 68, Crawford Road
- 71, Crawford Road
- 72, Crawford Road
- 76, Crawford Road
- 78, Crawford Road
- 83, Crawford Road
- 85, Crawford Road
- 88, Crawford Road
- 89, Crawford Road
- 94, Crawford Road
- 96, Crawford Road
- 104, Crawford Road
- 109, Crawford Road
- 117, Crawford Road
- 130, Crawford Road
- 131, Crawford Road
- 132, Crawford Road
- 136, Crawford Road
- 137, Crawford Road
- 138, Crawford Road
- 145, Crawford Road
- 148, Crawford Road
- 151, Crawford Road
- 152, Crawford Road
- 153, Crawford Road
- 154, Crawford Road
- 157, Crawford Road
- 158, Crawford Road
- 159, Crawford Road
- 167, Crawford Road
- 168, Crawford Road
- 172, Crawford Road
- 173, Crawford Road
- 175, Crawford Road
- 179, Crawford Road
- 182, Crawford Road
- Flat, 205, Crawford Road
Council tax
What each band costs in Welwyn Hatfield in 2026-27: Band D £2,452 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,635 | £1,907 | £2,180 | £2,452 | £2,997 | £3,542 | £4,087 | £4,905 |
Homes by band in the neighbourhoods around this street: most are in band D (48% of about 1,320 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)
- Hatfield - L Kahn Manufacturing Wellfield Road: up to 62 homes, not permissioned (130 m)
- Hatfield - Sylvia Adams House 24 The Common: up to 10 homes, permissioned (370 m)
- Hatfield - 41-43 Town Centre: up to 6 homes, permissioned (500 m (0.3 miles))
- Hatfield - Meridian House The Common: up to 11 homes, not permissioned (530 m (0.3 miles))
- Hatfield - Garages at Little Mead: up to 5 homes, permissioned (570 m (0.4 miles))
- Hatfield - Lemsford Road Car Park: up to 32 homes, not permissioned (620 m (0.4 miles))
- Hatfield - Link Drive Car Park: up to 80 homes, permissioned (680 m (0.4 miles))
- Hatfield - Former Volkswagen Van Centre Comet Way: up to 118 homes, permissioned (810 m (0.5 miles))
Roadworks
Finished in the last three months
- 22 August 2026: VIRGIN MEDIA, Utility asset works, no carriageway incursion, on the footway (minor works)
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 5 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 |
|---|---|---|---|
| AL10 0PF | not in 2 or 3 | 0 / 0 / 3 | unlikely |
| AL10 0PE | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| AL10 0PB | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| AL10 0PA | not in 2 or 3 | 0 / 0 / 2 | unlikely |
| AL10 0PG | not in 2 or 3 | 0 / 0 / 0 | unlikely |
Height above sea level
The street's 211 addresses are between 77 m and 82 m above sea level (80 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 |
|---|---|---|---|---|
| AL10 0PA | 100% | 100% | 100% | 0% |
| AL10 0PB | 100% | 100% | 100% | 0% |
| AL10 0PE | 100% | 100% | 100% | 0% |
| AL10 0PF | 100% | 100% | 100% | 0% |
| AL10 0PG | 100% | 88% | 75% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Hatfield (Herts) 2.5 million journeys in 2024–25 | 940 m (0.6 miles) |
| Welham Green 253,000 journeys in 2024–25 | 3.7 km (2.3 miles) | |
| Welwyn Garden City 2.5 million journeys in 2024–25 | 4.1 km (2.5 miles) | |
| Bus stops | 8 stops within 400 m (0.2 miles), 31 within 800 m (0.5 miles); nearest Burfield Close Hatfield | 140 m |
| Bus or coach station | Parkhouse Bus Station Hatfield | 870 m (0.5 miles) |
| EV charging points | InstaVolt Charging Station | 3.3 km (2.1 miles) |
| Airport with scheduled flights | London Luton Airport LTN | 15.4 km (9.5 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 3 practices within 1.6 km (1 mile); nearest Wrafton House Surgery | 150 m |
| Pharmacies | 5 pharmacies within 1.6 km (1 mile); nearest Robin Hood Lane - Jade Pharmacy | 380 m |
| NHS dentists | 4 practices within 1.6 km (1 mile); nearest Dental Surgery | 330 m |
| Hospital | One Hatfield Hospital | 650 m (0.4 miles) |
| Police station | Hatfield Police Station | 700 m (0.4 miles) |
| Cash machines | 6 machines within 800 m (0.5 miles); nearest HertSavers Credit Union | 380 m |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | 1 within 800 m (0.5 miles); nearest Coronation Gardens 1,590 m² | 420 m (0.3 miles) |
| Play area | 7 within 800 m (0.5 miles); nearest Unnamed 690 m² | 140 m |
| Playing field | 1 within 800 m (0.5 miles); nearest St Albans Road East Recreation Ground 1.2 ha | 530 m (0.3 miles) |
| Allotments | 1 within 800 m (0.5 miles); nearest Green Lanes Allotments 1.6 ha | 560 m (0.3 miles) |
Within 800 m (0.5 miles): 1 park or garden, 0.2 hectares in all.
Landmarks
The nearest historic landmark is Hatfield War Memorial including memorial cross, garden wall and gates, and shelter pavilion, a listed building (Grade II*), 1 km (0.6 miles) east. 11 listed buildings are within 1 km (0.6 miles), 1 of them Grade II*.
| Name | What it is | From the middle of the street |
|---|---|---|
| Hatfield War Memorial including memorial cross, garden wall and gates, and shelter pavilion | Listed building, Grade II* | 1 km (0.6 miles) east |
| Hatfield House | Registered park or garden, Grade I | 2.1 km (1.3 miles) south-east |
| Name | What it is | From the middle of the street |
|---|---|---|
| Howe Dell | Valley | 1.3 km (0.8 miles) south-east |
| Home Park | Wood | 1.9 km (1.2 miles) east |
| Creswick Plantation | Wood | 2.1 km (1.3 miles) north-east |
| Hatfield Park | Wood | 2.1 km (1.3 miles) east |
| Hazel Grove | Wood | 2.2 km (1.3 miles) south |
| The Broadwater | Lake or reservoir | 2.4 km (1.5 miles) east |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 12.4 | 40 | 10 |
| Fine particles (PM2.5) | 7.9 | 20 | 5 |
| Particles (PM10) | 13.7 | 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 |
|---|---|---|
| 60 to 64 | 1 | 0 |
| 55 to 59 | 30 | 0 |
| Under 55 | 180 | 211 |
31 of the street's 211 addresses are 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 Welwyn Hatfield: see them on the Welwyn Hatfield page.
Nearest schools
| School | Phase | Ages | Distance | Inspection |
|---|---|---|---|---|
| Birchwood Nursery School | Nursery | 2–5 | 200 m | Outstanding (Feb 2024, overall grade under the previous framework) |
| Birchwood Avenue Primary School | Primary | 5–11 | 280 m | Good (Jun 2023, overall grade under the previous framework) |
| Countess Anne Church of England School | Primary | 5–11 | 700 m (0.4 miles) | Outstanding (Oct 2019, overall grade under the previous framework) |
| Hatfield Community Free School | Primary | 4–11 | 940 m (0.6 miles) | 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 |
| Onslow St Audrey's School | Secondary | 11–18 | 1 km (0.6 miles) | Good (Dec 2023, overall grade under the previous framework) |
| Bishop's Hatfield Girls' School | Secondary | 11–18 | 1 km (0.6 miles) | No published inspection |
| Green Lanes Primary School | Primary | 5–11 | 1 km (0.6 miles) | No published inspection |
| St Philip Howard Catholic Primary School Roman Catholic | Primary | 3–11 | 1.1 km (0.7 miles) | No published inspection |
| The Ryde School | Primary | 4–11 | 1.2 km (0.8 miles) | No published inspection |
| Oak View Primary and Nursery School | Primary | 3–11 | 1.3 km (0.8 miles) | No published inspection |
| Howe Dell Primary School | Primary | 3–11 | 1.3 km (0.8 miles) | No overall grade (Jun 2025, 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
| Business | Type | Distance | Rating | Rated |
|---|---|---|---|---|
| Quantum Care Ltd AL10 0BU | Hospitals/Childcare/Caring Premises | 180 m | 5 Very good | 7 Feb 2025 |
| Birchwood Nursery School AL10 0PD | School/college/university | 200 m | 5 Very good | 3 Jun 2025 |
| Birchwood Avenue Breakfast Club AL10 0PS | School/college/university | 220 m | 5 Very good | 10 Sep 2018 |
| Hertfordshire Catering Ltd AL10 0PS | School/college/university | 220 m | 5 Very good | 18 Sep 2025 |
| St John of God Hospitaller Services AL10 0AW | Hospitals/Childcare/Caring Premises | 250 m | 5 Very good | 10 Jul 2024 |
| St John of God Hospitaller Services AL10 0AW | Hospitals/Childcare/Caring Premises | 250 m | 5 Very good | 10 Jul 2024 |
| Quigleys AL10 0PW | Retailers - other | 250 m | Exempt | |
| Birchwood Cafe AL10 0PW | Restaurant/Cafe/Canteen | 260 m | 5 Very good | 11 Jul 2024 |
| Simmons (Bakers) Ltd AL10 0PT | Retailers - other | 370 m | 5 Very good | 11 May 2026 |
| Ashvins AL10 0PT | Retailers - other | 370 m | Exempt | |
| Birchwood Wines AL10 0PT | Retailers - other | 370 m | Exempt | |
| Premier Inn AL10 0DA | Pub/bar/nightclub | 380 m | Awaiting inspection | |
| Hatfield Best Kebab AL10 0LD | Takeaway/sandwich shop | 390 m | 4 Good | 8 Feb 2024 |
| Nature's Fresh AL10 0LD | Retailers - other | 410 m (0.3 miles) | 4 Good | 19 Feb 2024 |
| Aaroh Foods AL10 0JJ | Retailers - other | 410 m (0.3 miles) | 5 Very good | 11 Oct 2023 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 62 |
| Anti-social behaviour | 18 |
| Criminal damage and arson | 9 |
| Burglary | 8 |
| Other theft | 7 |
| Vehicle crime | 7 |
| Drugs | 5 |
| Public order | 4 |
| Robbery | 4 |
| Possession of weapons | 3 |
| Other crime | 3 |
| Bicycle theft | 3 |
| Theft from the person | 2 |
Most of these are attached to: On or near Birchwood Avenue (26); On or near The Minims (22); On or near Wenham Place (14); On or near Foxhollows (12); On or near Wellands (10).
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 39 | 40 |
| Children under 15 | 18% | 17% |
| Aged 65 and over | 15% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 65% | 61% |
| Owned outright | 30% | 33% |
| Shared ownership | 0% | 1% |
| Social rented | 21% | 17% |
| Private rented | 13% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 63% | 57% |
| Unemployment (of those working or looking for work) | 5% | 6% |
| Retired (of adults) | 17% | 22% |
| Long-term sick or disabled (of adults) | 2% | 4% |
| Work mainly from home (of those in work) | 27% | 32% |
| Travel to work by car or van | 53% | 48% |
| By train, Underground, metro or tram | 4% | 4% |
| By any public transport, including bus | 5% | 8% |
| On foot or by bicycle | 12% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 62% | 65% |
| Work 30 km (19 miles) or more away | 8% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 31% | 34% |
| No qualifications | 15% | 18% |
| Apprenticeship as highest qualification | 6% | 5% |
| Main language English (aged 3 and over) | 87% | 91% |
| Cannot speak English well or at all | 1% | 2% |
Deprivation
The 2 neighbourhoods around this street are in deciles 5 to 6 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
- AL10 0PF: 70 addresses
- AL10 0PE: 47 addresses
- AL10 0PB: 35 addresses
- AL10 0PA: 31 addresses
- AL10 0PG: 28 addresses
Nearby streets
Burfield Close · Birchwood Close · Wellands · Birchway · Vixen Court · Wellfield Close · Birchwood Avenue · The Minims · Harmony Close · Wenham Place · Foxhollows · Town Fields
All the streets in AL10 and across Welwyn Hatfield.
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.