"They are vulnerable road users, so it's critical that we encourage them to take extra care," he said.
Along with more foot traffic, more motorists will also be on the roads. "With many families getting back into the routine of the school drop off and pick up, there is going to be more congestion on the roads in and around school areas."
"It's important therefore that all drivers be aware of their speed and keep a watch out for children, particularly as there will be more kids walking, cycling and bussing to school. This means sticking to the speed limit, giving cyclists plenty of room and travelling at no more than 20km/h past a stationary school bus."
Motorists are also reminded that there is a permanent reduced 4km/h speed threshold in place around schools, which has been active since 2007.
"Children can be unpredictable, so motorists need to be well prepared to stop safely in and around school zones," Mr Griffiths said.
"Returning to school is often an exciting time for kids as they rush to catch up with friends, so they can be easily distracted and may not be paying as much attention to their surroundings."
He encourages parents to re-establish safe walking and biking habits with their kids, even if it is a well-travelled route.