Not really. Higher speeds increase fuel consumption, and traffic light timings don’t change with fewer cars on the road. They might save a little on roundabouts but for the most part I think the effects would be negligible.
I believe most cars are at their most efficient at city cruising speeds of 50–70 km/h. Because there’s a trade-off between air resistance and the efficiency of the engine & gearing.
Not really. Higher speeds increase fuel consumption, and traffic light timings don’t change with fewer cars on the road. They might save a little on roundabouts but for the most part I think the effects would be negligible.
I believe most cars are at their most efficient at city cruising speeds of 50–70 km/h. Because there’s a trade-off between air resistance and the efficiency of the engine & gearing.