Academics say traffic scorecard uses ‘rogue metric’ which may make Brisbane’s congestion appear as bad as Los Angeles and Jakarta

Brisbane ranks among the world’s most congested cities – ahead of sprawling megacities like Bangkok and well in front of Sydney and Melbourne – according to a transport analytics report.

But experts have cast doubt on the methodology of INRIX Global Traffic Scorecard, which compares travel times when roads are empty in the middle of the night with speeds at peak hour to calculate what it calls “delay”.

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