A teenage boy has become the first pedestrian to be struck by a new Sydney light rail tram, and authorities fear he will be far from the last.

7NEWS can reveal the 15-year-old was hit by the tram about 1.30pm on Friday at the corner of Lang Road and Anzac Parade in Moore Park.

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Paramedics treated the boy at the scene for minor head and leg injuries and he was taken to Children's Hospital in Randwick in a stable condition.

The light rail is currently in its testing stages and is due to operate in the city and Sydney's south-east by the end of the year.

The scene where a teenage boy was hit by a Sydney tram. Credit: 7NEWS

Transport authorities have been extremely concerned by the potential for pedestrians to put themselves in harm's way with the new rail network, especially when they are distracted by mobile phones and wearing headphones.

"We are so worried by what's happened today," said Marg Prendergast from NSW Transport.

The boy was caught by cameras lingering on the tracks only moments before he's hit.

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"Sydneysiders aren't used to being around tram tracks on the open road," added Prendergast.

"The important safety message is that when you are crossing near the tram tracks, you need to look both ways, and you need to cross at the designated crossing."

Drivers will undergo 190 hours of training before the service is launched to the public.