Mumbai ranked first among 403 global cities in Traffic Index 2018 study

An analysis of traffic congestion done in more 400 cities across six continents has found that commuters in Mumbai spent the most time on the road last year.
Mumbai ranked first in the study, ‘Traffic Index-2018’, by location technology specialist TomTom, with a congestion level of 65 per cent
New Delhi ranked fourth with a congestion of 58 per cent. 
Mumbai held on to the top rank for the second consecutive year, beat Bogota (63 per cent), Lima (58 per cent) and Moscow (56 per cent).
Overall study covered 403 cities in 56 countries and defined congestion as the extra time added to road travel when traffic doesn’t flow freely.
The best time in Mumbai without any congestion would be 2 am and 5 am, when traffic flowed freely. 
The peak hours between 8 am and 10 am resulted in a congestion of 80 per cent, which shot up to 102 per cent between 5 pm and 8 pm, when offices shut for the day. 
August 21 considered as the worst day to be on the road bringing traffic movement to a complete standstill for the better part of the day leading to a congestion of 111 per cent. 
They suggested expanding the scope of the city’s public transport network in order to provide end-to-end connectivity and businesses to provide flexible working hours to employees to ease traffic moving towards the suburbs.