The yellow markings are there to provide a clear space for children to cross where they can see traffic and traffic can see them, and motorists put children in danger by parking on them.
Police and council teams ask parents to help keep children safe by parking away from schools and instead take a short walk to the school gates.
Earlier this year the council increased enforcement against illegal parking on zig-zags with the use of CCTV to crack down on dangerous drivers. This was in response to concerns about safety from parents, head teachers and residents.
Those caught on the yellow ‘SCHOOL-KEEP-CLEAR’ zig-zag markings within the controlled hours will be issued with a penalty charge notice of £110, reduced to £55 if paid within 21 days.
Motorists are permitted to park in a resident’s parking space for up to 10 minutes whilst dropping off or collecting children.
The council’s school travel team works closely with head teachers in the borough to help them promote the health and environmental benefits to parents and carers of walking their children to school.
Councillor Bassam Mahfouz, cabinet member for environment, transport and leisure, said: “Parents and head teachers tell me all the time how worried they are about the safety of children outside their schools because of selfish drivers who park on zig-zag lines. This makes it harder for children to see when they cross the road and for drivers to see them. It also forces them to cross between parked cars. I make no apologies for issuing tickets, even if you do need to drive to school, there is never an excuse for parking dangerously - our children's safety is absolute priority.”