Kolkata s Car Density: Average trip time in the city, in fact, has doubled in the last five years, in keeping with a sharp rise in the number of personal vehicles and a decline in public transport, mainly owing to the pandemic. Kolkata now has around 45.3 lakh vehicles plying on 1,850km of road space. Delhi, which has substantially more vehicles (1 crore 32 lakh), has 33,198km of roads, giving it a vehicular density of less than 400 per kilometre.