Clearly the way to improve road safety for cyclists and pedestrians is to recite the mantra "Speed kills" and tell vulnerable road users that it is drivers, not them who are responsible for their safety.
But lets not concern ourselves with unregistered, unlicensed, uninsured and non-compliant with just about all C&U regulations mechanically propelled vehicles that routinely drive on pavements with no regard for stupid pedestrians who fail to get out of their way (e-scooters and e-bikes), or even the proportion of e-bikes that are complaint with the exemptions.
Obviously a "pedestrian and cyclists" group will deliver a balanced view on all road users, particularly motorists as they are "all party".
Can anyone name an approved speed detection device with a claimed accuracy better than +/- 2kph?
Obviously as speed limits are set for sound and well considered reasons, and even 1mph over the limit should be prosecuted (regardless of whether or not it can be reliably measured) because it defeats the sound technical purpose of setting the limit at that number, the fact that speed limits are always multiples of 10 is just a coincidence.