T'other day, I was on a very new EV double-decker bus, which was tailing an identical same route number bus, travelling on open roads between two north Yorkshire towns. What caught my attention, about the bus in front, was how often the brake-lights were coming on. There was nothing ahead of the bus, no need for the driver to brake, I wouldn't be touching the brakes at all. Other than the frequent braking, the bus was 'making good progress'. The braking, is what I would describe a 'comfort braking'. The driver derives some reassurance, from touching the brakes.