School run motorists have been advised by South Yorkshire Police and the Safer Neighbourhood Team to take particular care outside Mayflower Primary School at Bawtry.
A banner on the Station Road school gates tells motorists to keep the area clear immediately outside the school.
Yellow lines indicate that parking is not permitted outside the school between 8am and 9.30am or between 3pm and 4pm.
The new sign tells drivers that the area should be kept clear, there is no waiting, no parking - and no excuses.
It also points out the yellow lines are there for a reason and appeals to parent drivers in particular to park safely and in a legal manner.