Massive traffic delays are expected in central Perth this afternoon and tonight when thousands of schoolchildren take part in the nation ‘s biggest children’s choir.

More than 8000 students from 165 primary schools will turn out for the One Big Voice shows at RAC Arena on Friday.

The first starts at midday, with doors opening at 11.15am.

The second starts at 6.15pm, with doors opening at 5.30pm.

Main Roads WA has warned of big traffic delays during these times and to avoid the area if possible.

Eastbound from Elder Street through to Telethon Avenue will be reduced to a single lane.

Motorists are urged to be mindful of children crossing the street.

Main Roads has warned drivers to plan ahead. Loading Tweet

Motorists have also been warned of road closures across the city and western

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