It’s part of the biggest road project ever built in Australia, but when a complex maze of tunnels and roads opened in Sydney last month it became apparent there was a major design flaw causing traffic chaos. 

So, how did planners get it so wrong and why do we rely so heavily on motorways?

Today, transport planner from the University of Technology Sydney, Michelle Zeibots, explains how political decisions are keeping us off public transport and in traffic jams. 

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Dr Michelle Zeibots, senior lecturer at the school of civil and environmental engineering at the University of Technology Sydney