Sunderland City Council is introducing the zones to improve road safety in the areas.
Work has started on introducing a 20mph speed limit outside of the following schools:
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Houghton Community Nursery
Redby Primary and St Benets RC
Springwell Dene Link School
St Anthony’s and Thornhill Academy
St John Boste RC
St Joseph’s RC
When the work is finished the majority of the city’s schools will have a 20mph zone on the neighbouring roads.
The new 20mph areas have gateway signs which signal the start and end points of the zones with 20mph lettering on the ground throughout.
Councillor Rebecca Atkinson, Cabinet Member for Dynamic City at Sunderland City Council said the new measures will protect children.
She said: "These 20mph traffic schemes can improve road safety and reduce the severity of injuries if an accident does occur.
"Placing these zones outside schools helps us to not only protect children, but also other vulnerable road users such as the elderly and those who have hearing and visual impairments.
"Research shows that slower traffic speeds help to reduce the risk of collisions and injuries and ultimately make our streets safer."
The council said that speed restrictions have also been shown to make areas more attractive places to live, and that having 20mph speed zones in an area helps to encourage people to take up cycling or walking which benefits the wider community.