Odd-even restrictions have to apply to two-wheelers and three-wheelers for the scheme to succeed, says a researcher at the New York-based Columbia University, doubting its efficacy in the long run.
According to V Faye McNeill, associate professor of Chemical Engineering in the institute, the impact of the odd- even scheme fizzles out eventually as drivers find ways around the restrictions.
This has been seen in megacities like Mexico City and Manila where the scheme was enforced in the past.
"Controlling emissions from transportation is very important, but in the long term I don't think that the odd- even scheme is going to be the answer," she told PTI in an email interview.
She said she had seen data indicating that the odd-even traffic rationing scheme reduced PM2.5 "somewhat" (around 20 per cent) at peak traffic times during the January trials.
"However, as experiences in other megacities such as Manila and Mexico City have shown, traffic rationing is not a viable ...
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