First off, you claim there is no 'safe route'. I guess its the play on words that is weaponised here. Richardson is safe for the average bike rider as is. Already 30-40kmh, wide road, straight sight lines etc.
What particular part do you consider it to be a 'not-safe' route? Why dont we start from that perspective and then work to provide a mutual beneficial solution?
Heres some of my suggestions... There could be a few tweeks to the road to improve it slightly, including some speed humps and a controlled crossing at Cook etc. but there is no history of this being a kill-zone for pedestrians or cyclists.
Ok your turn...
The traffic volumes are the part that is unsafe. Richardson gets roughly 4000 vpd, which is at 4 times the volumes of a safe shared bike route. Crossing upgrades are also required, i.e. at Cook like you said. But the main thing safety hazard is traffic volumes; either the volumes need to be reduced drastically or bikes and cars need to be separated.
As per the BC Active Transportation Design Guide, "the desired average daily traffic on a neighbourhood bikeway is 500 motor vehicles per day or less. The maximum average daily traffic is 1000 vpd". Basically, these are the max volumes for a shared bike / car route to be considered safe for all users. Adding some intersection treatments and a bit of traffic calming isn't sufficient for a road with such high vehicles. From the design guide:
There are obviously different design choices; neighbourhood bikeways, protected bike lanes, painted & buffered bike lanes, and multi-use pathways are the standard options. In fact, based on the design treatments table above, the volumes are so high on Richardson that an alternate facility type might be a better idea. I think it'd be great to put in protected bike lanes on Richardson, but that would probably require getting rid of most on-street parking. But honestly, i would be happy with any of these options; which would you prefer?
(if you're looking for some engineering guidance, the BC Active Transportation Design Guide is found online:https://www2.gov.bc....led_digital.pdf )