"Re traffic light crossing points, unless things have changed since google took its pictures, all (3?) of the pedestrian crossings have some barriers, and neither of the cycle crossings have any barriers."
Interesting, this has rather challenged my memory of Melville Drive! (especially given I ride it every day). It's all very inconsistent still.
Most easterly crossing. North side has simple opening between two railings, south side only has a railing to the east.
Next crossing, only has barriers on the south side, which this time are staggered a smidge, so not a simple opening.
Next up is MIddle Meadow Walk, no barriers whatsoever.
The Jawbone, which only has barriers on the north side, staggered a smidge, and none on the south (so an exact mirror of the second crossing).
Last crossing before breaking out the park into Tollcross has no barriers at all.
So. One crossing with barriers both sides (though one side is partial); two crossings with barriers on only one side (and different sides from each other); and two crossings with no barriers at all.
Very strange. So for the non-barriered crossings, and partially barriered crossings, the query still stands as to whether children are running out into the road whereas they're not at the barriered crossings because of the barriers.
But, mea culpa, I was somewhat (i.e. completely) wrong in my assertion!