The speed limit will be reduced to 20mph on main roads in five London boroughs this week in a bid to improve road safety.
Transport for London will cut the speed limit on 17 miles of “red routes” under its control in Camden, Islington, Hackney, Haringey and Tower Hamlets from Friday.
This will include main thoroughfares such as Euston Road, Pentonville Road, Mile End Road and Seven Sisters Road.