We come to that rather sore old point that we build facilities for cyclists and they hardly get used.
Perhaps the way ahead is to spend that money on safer leisure facilities for cyclists etc and forget trying to mix 40 tonne lorries and cyclists on our ill suited roads.
Deaths and injuries from sharing road space must put off an awful lot of parents encouraging their children to use cycles.
Having rights to be put at risk of death or injury doesn't seem to be sensible.

Originally Posted by lawed143

Lights are required by law, but some cyclists don’t bother. Do you really think making hi-viz law will make any difference those who already ignore the law?!
Preaching about hi-vis is a clear distraction from the pressing need to stop distracted and inattentive driving. Swaddling vulnerable road users in hi-vis or body-armour detracts from this mission and ducks the duty on police to enforce the law when it comes to speeding, too-close overtaking of cyclists, parking in cycle ways, etc
Also, there is evidence from studies in italy where hi-viz is the law, that there has been no notable reduction in accidents between cyclists and drivers since the law was introduced in 2010. In fact, there are instances where the cyclist thought they were less vulnerable because of the hi-viz they wore, and therefore were less likely to be aware of their present dangers.
It’s not a simple case of throw hi-biz on and the problem goes away, much more needs to be done educating all road users and segregating those who are vulnerable. Pavements are provided to separate pedestrians from vehicles, sadly putting bikes and cars together was a big historical mistake.

I didn't mention hi-vis clothing, it can help, but as you say can also give a false sense of security, getting back to the original post, just how practical is the idea of prioritising cycling and pedestrians on new roads, most new roads are out of town arterial roads, these are not the roads used by pedestrians or little used by cyclists, to provide these facilities in built up areas would need wholesale demolition or closing roads to motorised vehicles, this would simply complete the demise of town centres.