My walks take my up and over the Story bridge at least once a week and so pass a couple of brightly coloured phone booths, one at each end of the bridge.
I know it has long been a contentious issue and there have been calls for high transparent barriers to be placed on the bridge edges.
I hate to think of the bridge being used as a tool for suicide but the stats would suggest it will happen from time to time. Perhaps these signs and easy access to counselling might help.