The telltale flash in the rearview mirror can make many a heart sink as another driver realises they've fallen foul of the dreaded speed cameras.
The bright yellow boxes are nothing new in the capital and they're known to bring in millions to the nation's coffers but there are some areas where drivers should take extra care.
Responding to a Freedom of Information request from Londonist, Scotland Yard gave details on the number of incidents captured by each speed camera in the Metropolitan Police area.
Just over 97,000 instances were recorded from 204 cameras between June 2014 and May 2015 with the most effective camera on the westbound side of the A1203 Limehouse Link in east London which issued an incredible 17,110 tickets.
The next best performing camera - but with far fewer cases - is on the A4 Cromwell road by Kenway road in SW5 where 5,700 tickets were dished out. In fact, drivers should be wary of the A4 as there are 11 cameras dotted along its route with another catching many drivers out at the junction of the West Cromwell Road and North End Road.
Closer towards the centre of London and the camera on Chelsea Embankment by Cheyne Walk in SW3 caught out 4,059 motorists while up in north London 2,779 drivers came croppers on the eastbound Bounds Green Road near Trinity Road in N22.
All but one of the top 20 recorded offences of four figures or more with only the A13 Gale Street/Thames Gateway in Barking dipping below 1,000 offences.
The top 20 speed cameras in London and number of tickets were:
- Limehouse Link Tunnel Westbound E14 - 17,110
- A4 Cromwell Road/Kenway Road SW5 - 5700
- Chelsea Embankment/Cheyne Walk SW3 - 4059
- Limehouse Link Tunnel Eastbound E14 - 4029
- A4 West Cromwell Road/North End Road W14 - 3842
- Plumstead Road/Villas Road SE18 - 3124
- Bounds Green Road/Trinity Road N22 - 2779
- Lower Mortlake Road/Castlegate TW9 - 2359
- Kenton Road/Rufford Close HA3 - 2281
- Kennington Park Road/Cleaver Square SE11 - 2012
- Vauxhall Bridge Road/Chapter Street SW1 - 1953
- Upper Richmond Road/Colinette Road SW15 - 1901
- A4 West Cromwell Road/Warwick Road W14 - 1762
- Clapham High Street/Cato Road SW4 - 1651
- Woodford Road/Beechwood Park E18 - 1506
- Euston Road/Osnaburgh Street NW1 - 1467
- A13 Thames Gateway/Kent Avenue IG11 - 1371
- A4 Great West Road/Vicarage Farm Road TW5 - 1230
- A205 Atkins Road/Kings Road SW4 - 1044
- A13 Gale Street/Thames Gateway RM9 - 935