option 1 - no barrier
he veers onto your side of the road and hits you
That's always a possibility but while there are no barriers there are at least more options to try to avoid the uncoming vehicle.
option 2 - cheese wires
he contacts the ropes and does not hit you
Or...he hits the barrier...barrier deforms into other lane and still takes you out.
Another downside is if a vehicle in front loses part of a load from a trailer etc and you have another vehicle alongside you, then you have basically nowhere to go. I know chances of this sort of thing happening may be relatively slim but so is the chance of a vehicle suddenly swerving into your lane because of no barriers.
the ropes are of course the cheaper option vs armco, and cause nasty damage to riders, but isn't some barrier better than nothing?
In this case I believe having none is the better option.....
Obviously separating the dual lanes would be the logical and smartest option....especially considering the rest of this highway does have a wide median separating the lanes....
Logic & smart isn't normally associated with our bureaucrats tho...lol.
It wouldn't surprise me in the slightest if this part of the road was purposely left like this just so they could trial these down the track citing the need to do something due to acidents having occured here.