This is the intended message of the new flashing lights outside The Hills Sports High School, Seven Hills, said principal Mitchell Struyve.

He said it was imperative drivers realised Best Road, where the school is, was a school zone. ``We have 950 students. Best Road is quite busy and the lights remind people to slow down,'' he said.

NSW Premier Nathan Rees attended the school on October 23, to see the lights and meet with students.

``We're installing flashing lights at the schools that need them most,'' Mr Rees said.

He said flashing light sites were chosen based on their crash history and risk, traffic and pedestrian volumes, speed limits, road environment and visibility. ``The majority of motorists are doing the right thing but it's vital we get the message across that there is no excuse for speeding, especially in a school zone,'' Mr Rees said.

The State Government's $46.5million flashing lights program was started in January 2008, to get people to slow down around schools. It is supported by revenue from speed cameras in school zones.