The State Government has appealed to motorists to drive carefully today as more than 300,000 primary and secondary students return to school.
Education Minister Kay Hallahan said motorists needed to be careful as there were 27,300 students starting school for the first time.
"Thousands of students will be riding to school and many will be dropped off by parents, creating traffic congestion," she said.
"Motorists need to be vigilant, particularly when passing schools, cross-walks and bus stops."
The Minister said Government school enrolments were up by 3,600 on 1992. In addition, 7,500 five-year-olds would start voluntary full-time pre-primary this year.
There were also five new primary schools - at Australind, Armadale, Byford, Clarkson and Joondalup.