Serious
Alexander Dennis crash on the A1099 in Chelmsford, 19 Dec 2025, 14:38
- 1 vehicle, 1 casualty
Ref 2025421687869
Marconi, Chelmsford, CM1 1SJ area: accident hotspot
Police recorded 659 road collisions at this accident hotspot in Marconi ward, Chelmsford, from 2001 to 2025, with 766 casualties. Of those collisions, 5 were fatal and 109 were serious.
In 2025 there were 21 collisions here, up from 16 in 2024.
- Collisions, 2001 to 2025
- 659
- 771st busiest of 12,033 hotspots
- Casualties
- 766
- 1.16 per collision
- Fatal collisions
- 5
- 5 people killed
- Collisions in 2025
- 21
- Up 31% on 2024
Crash severity at the CM1 1SJ hotspot
114 of the 659 collisions here (17%) killed or seriously injured someone.
Collisions by severity, 2001 to 2025
- Fatal50.8%
- Serious10917%
- Slight54583%
People hurt, 2001 to 2025
- Killed
- 5
- Seriously injured
- 112
- Slightly injured
- 649
- All casualties
- 766
Accidents by year at the CM1 1SJ hotspot
Collisions here peaked at 53 in 2001, against an average of 26 a year from 2001 to 2025.
Collisions and casualties at the CM1 1SJ hotspot, 2001 to 2025
- Collisions
- Collisions in 2025: 21
- Casualties
Source: Department for Transport, STATS19 road safety data
View as a tableHide the table
| Year | Collisions | Casualties |
|---|---|---|
| 2025 | 21 | 24 |
| 2024 | 16 | 19 |
| 2023 | 18 | 20 |
| 2022 | 20 | 24 |
| 2021 | 17 | 22 |
| 2020 | 15 | 20 |
| 2019 | 24 | 27 |
| 2018 | 11 | 11 |
| 2017 | 20 | 21 |
| 2016 | 16 | 16 |
| 2015 | 18 | 18 |
| 2014 | 23 | 27 |
| 2013 | 21 | 25 |
| 2012 | 34 | 38 |
| 2011 | 30 | 35 |
| 2010 | 33 | 40 |
| 2009 | 25 | 27 |
| 2008 | 26 | 31 |
| 2007 | 23 | 27 |
| 2006 | 45 | 54 |
| 2005 | 38 | 47 |
| 2004 | 34 | 41 |
| 2003 | 43 | 48 |
| 2002 | 35 | 45 |
| 2001 | 53 | 59 |
Map of crashes at the CM1 1SJ hotspot
The 48 most recent collisions at this hotspot, coloured by severity, around its centre near CM1 1SJ.
Map of the 48 most recent collisions at the Marconi, Chelmsford, CM1 1SJ area accident hotspot
Use the arrow keys to move the map and the plus and minus keys to zoom.
- 48 crashes
- Serious
- Slight
Centre of the hotspot
Hotspot area, 700 m radius
Details of the CM1 1SJ hotspot
This hotspot counts every collision police recorded from 2001 to 2025 within 700 metres of its centre, except those already counted in a busier hotspot.
- Ward
- Marconi
- Council area
- Chelmsford
- Nearest postcode to the centre
- CM1 1SJ
- Postcode district
- CM1
- Centre (latitude, longitude)
- 51.73869, 0.46594
- Radius
- 700 metres
- Years covered
- 2001 to 2025
- Years with a collision
- 25 of 25
- Latest collision
- 19 December 2025
- Rank by collisions
- 771st of 12,033 hotspots
Towns near the CM1 1SJ hotspot
644 of the 659 collisions at this hotspot were inside the built-up area of Chelmsford.
Accident hotspots near CM1 1SJ
The 8 nearest other hotspots are all within 5 km of this one. The nearest is the Moulsham and Central, Chelmsford, CM2 0NN area, 1 km away, with 121 collisions.
- Moulsham and Central, Chelmsford, CM2 0NN area1 km away, 130 casualties121 collisions
- Patching Hall, Chelmsford, CM1 4HJ area1.2 km away, 301 casualties255 collisions
- Moulsham and Central, Chelmsford, CM2 0DB area1.2 km away, 1,224 casualties1,003 collisions
- The Lawns, Chelmsford, CM1 7PF area1.4 km away, 96 casualties83 collisions
- St Andrews, Chelmsford, CM1 2LJ area1.7 km away, 169 casualties139 collisions
- Moulsham and Central, Chelmsford, CM2 9XE area1.8 km away, 578 casualties473 collisions
- Trinity, Chelmsford, CM2 6EG area1.8 km away, 262 casualties226 collisions
- Broomfield and The Walthams, Chelmsford, CM1 7BY area2.2 km away, 186 casualties144 collisions
All 659 crashes at the CM1 1SJ hotspot
Newest first, from 2 January 2001 to 19 December 2025, 48 to a page.
Severity
Year
- Slight
Nissan Juke crash on the A1060 in Chelmsford, 8 Dec 2025, 12:36
- Nissan Juke and Ford Fiesta
- 2 vehicles, 1 casualty
Ref 2025421681044
- Slight
Car crash on the B1008 in Chelmsford, 28 Nov 2025, 16:15
- A car and a bicycle
- 2 vehicles, 1 casualty
Ref 2025421675649
- Serious
Mini Cooper crash on the A1016 in Chelmsford, 25 Nov 2025, 13:39
- 1 vehicle, 1 casualty
Ref 2025421674092
- Slight
Nissan Juke crash on the A1016 in Chelmsford, 13 Nov 2025, 11:03
- Nissan Juke and Volvo XC60
- 2 vehicles, 2 casualties
Ref 2025421667936
- Slight
Bicycle crash on an unclassified road in Chelmsford, 3 Nov 2025, 18:05
- 1 vehicle, 1 casualty
Ref 2025421663756
- Slight
Toyota C-HR crash on the A1099 in Chelmsford, 2 Nov 2025, 15:38
- Toyota C-HR and Suzuki UN 125
- 2 vehicles, 1 casualty
Ref 2025421662661
- Slight
Ford Transit Custom crash on an unclassified road in Chelmsford, 10 Oct 2025, 18:50
- Ford Transit Custom and Skoda Octavia
- 2 vehicles, 1 casualty
Ref 2025421653028
- Slight
Renault Clio crash on an unclassified road in Chelmsford, 17 Sep 2025, 20:50
- Renault Clio and an e-scooter
- 2 vehicles, 1 casualty
Ref 2025421643825
- Slight
Renault Austral crash on the A1016 in Chelmsford, 27 Aug 2025, 11:51
- Renault Austral, Audi A4 and a car
- 3 vehicles, 1 casualty
Ref 2025421634115
- Slight
Ford Transit crash on the A1016 in Chelmsford, 19 Aug 2025, 11:57
- Ford Transit, Renault Trafic and Vauxhall Astra
- 3 vehicles, 2 casualties
Ref 2025421630781
- Slight
Audi E-Tron crash on an unclassified road in Chelmsford, 16 Aug 2025, 19:48
- Audi E-Tron and a bicycle
- 2 vehicles, 1 casualty
Ref 2025421633390
- Slight
Car crash on the A1060 in Chelmsford, 1 Aug 2025, 15:00
- 1 vehicle, 1 casualty
Ref 2025421623541
- Slight
Car crash on the A1099 in Chelmsford, 4 Jul 2025, 11:25
- A car and a bicycle
- 2 vehicles, 1 casualty
Ref 2025421612042
- Slight
Car crash on the A1099 in Chelmsford, 25 Jun 2025, 22:00
- A car and a bicycle
- 2 vehicles, 1 casualty
Ref 2025421607740
- Slight
Ford Focus crash on an unclassified road in Chelmsford, 5 May 2025, 00:10
- 1 vehicle, 1 casualty
Ref 2025421586833
- Slight
Fiat 500 crash on the B1008 in Chelmsford, 29 Apr 2025, 19:00
- Fiat 500 and an e-scooter
- 2 vehicles, 1 casualty
Ref 2025421583879
- Serious
Skoda Enyaq crash on the A1099 in Chelmsford, 28 Mar 2025, 11:05
- Skoda Enyaq and Vauxhall Corsa
- 2 vehicles, 2 casualties
Ref 2025421570599
- Slight
Volkswagen Sharan crash on an unclassified road in Chelmsford, 13 Feb 2025, 16:00
- Volkswagen Sharan and a bicycle
- 2 vehicles, 1 casualty
Ref 2025421554811
- Slight
Car crash on an unclassified road in Chelmsford, 1 Feb 2025, 17:29
- 1 vehicle, 1 casualty
Ref 2025421550214
- Serious
Mercedes A Class crash on an unclassified road in Chelmsford, 24 Jan 2025, 16:22
- 1 vehicle, 1 casualty
Ref 2025421545924
- Slight
Citroen Dispatch crash on an unclassified road in Chelmsford, 28 Nov 2024, 23:59
- 1 vehicle, 1 casualty
Ref 2024421523006
- Slight
Volkswagen Polo crash on the B1008 in Chelmsford, 11 Nov 2024, 19:40
- 1 vehicle, 1 casualty
Ref 2024421514931
- Serious
Kawasaki ZX crash on the A1060 in Chelmsford, 10 Nov 2024, 21:55
- Kawasaki ZX and Ford Focus
- 2 vehicles, 1 casualty
Ref 2024421514602
- Slight
Car crash on the B1008 in Chelmsford, 6 Nov 2024, 17:20
- A car and a bicycle
- 2 vehicles, 1 casualty
Ref 2024421513244
- Slight
Mercedes Sprinter crash on the A1060 in Chelmsford, 4 Nov 2024, 09:12
- Mercedes Sprinter and a car
- 2 vehicles, 3 casualties
Ref 2024421512175
- Slight
Car crash on the B1008 in Chelmsford, 31 Oct 2024, 21:00
- A car and a bicycle
- 2 vehicles, 1 casualty
Ref 2024421512094
- Slight
Mercedes Eqb Class crash on the A1016 in Chelmsford, 8 Oct 2024, 19:07
- 1 vehicle, 1 casualty
Ref 2024421501807
- Serious
Vauxhall Insignia crash on the B1008 in Chelmsford, 31 Aug 2024, 20:15
- Vauxhall Insignia and BMW 5 Series
- 2 vehicles, 1 casualty
Ref 2024421485876
- Slight
Fiat 500 crash on the B1008 in Chelmsford, 25 Jun 2024, 17:32
- 1 vehicle, 1 casualty
Ref 2024421460102
- Slight
Renault Trafic crash on the A1060 in Chelmsford, 22 May 2024, 14:30
- Renault Trafic and Toyota Yaris
- 2 vehicles, 1 casualty
Ref 2024421454252
- Serious
Car crash on an unclassified road in Chelmsford, 10 May 2024, 20:45
- 1 vehicle, 1 casualty
Ref 2024421441384
- Slight
Volvo XC40 crash on an unclassified road in Chelmsford, 2 May 2024, 17:10
- Volvo XC40 and a bicycle
- 2 vehicles, 1 casualty
Ref 2024421440101
- Serious
Audi Q2 crash on the B1008 in Chelmsford, 10 Apr 2024, 21:35
- Audi Q2 and Volvo
- 2 vehicles, 2 casualties
Ref 2024421430258
- Slight
Nissan Micra crash on the A1099 in Chelmsford, 4 Apr 2024, 10:39
- 1 vehicle, 1 casualty
Ref 2024421427887
- Slight
Car crash on an unclassified road in Chelmsford, 11 Mar 2024, 07:50
- 1 vehicle, 1 casualty
Ref 2024421421991
- Slight
Ford Fiesta crash on the B1008 in Chelmsford, 26 Jan 2024, 17:35
- Ford Fiesta and an e-scooter
- 2 vehicles, 1 casualty
Ref 2024421403081
- Slight
Peugeot 308 crash on the A1016 in Chelmsford, 16 Dec 2023, 01:25
- Peugeot 308 and Peugeot 108
- 2 vehicles, 3 casualties
Ref 2023421388886
- Serious
BMW 4 Series crash on an unclassified road in Chelmsford, 1 Dec 2023, 17:17
- 1 vehicle, 1 casualty
Ref 2023421381517
- Slight
Toyota Yaris crash on the B1008 in Chelmsford, 19 Nov 2023, 23:40
- 1 vehicle, 1 casualty
Ref 2023421376416
- Slight
Vauxhall Combo crash on an unclassified road in Chelmsford, 12 Oct 2023, 14:07
- Vauxhall Combo and Hyundai i10
- 2 vehicles, 1 casualty
Ref 2023421364040
- Serious
BMW X6 crash on the B1008 in Chelmsford, 2 Oct 2023, 17:20
- BMW X6 and a bicycle
- 2 vehicles, 1 casualty
Ref 2023421365370
- Slight
Bus crash on the A1099 in Chelmsford, 28 Sep 2023, 08:45
- 1 vehicle, 1 casualty
Ref 2023421363374
- Serious
Mercedes CLC Class crash on the A1016 in Chelmsford, 9 Sep 2023, 13:50
- Mercedes CLC Class and a bicycle
- 2 vehicles, 1 casualty
Ref 2023421350866
- Slight
Ford Focus crash on an unclassified road in Chelmsford, 10 Aug 2023, 05:07
- 1 vehicle, 1 casualty
Ref 2023421340452
- Serious
Mazda MX-5 crash on the B1008 in Chelmsford, 4 Aug 2023, 22:50
- 1 vehicle, 1 casualty
Ref 2023421338322
- Serious
Toyota Corolla crash on the B1008 in Chelmsford, 24 Jul 2023, 18:13
- 1 vehicle, 1 casualty
Ref 2023421346257
- Serious
Ford Focus crash on an unclassified road in Chelmsford, 8 Jun 2023, 19:05
- 1 vehicle, 1 casualty
Ref 2023421316566