The problem definitely isn't the bridge. It should be left in situ. Lowering the road will cause flooding problems, raising the bridge will stuff the trams up in all likelihood. The only real way to combat it is heavy fines and driver education, but that'll only go so far whilst people rely on their GPS like a kidney patient relies on dialysis.
While I agree with your sentiments to an extent, the reality is driver education and fines can only do so much.
Mandatory further driver education can be gotten around. People cut corners like these all of the time. There are many dodgey driving schools out there. As for heavier fines, all this will do is put up the amount of money not payed by offenders who do not pay their fines.
The only true way to stop it happening on such a regular basis is to increase the clearance gap (currently 3.0M). Option 1
, Raise the bridge. May prove impractical. Would be far too costly as would require the raising of 5 tram lines - 2 for the Rt109 and 3 in the Southbank Yard - as well as the actual bridge itself. would involve lengthy shutdowns of both trams and road.Option 2
, Lower the road (which is most likely but probably not before the 2018 state election). It shouldn't flood if done right, and even if it does, that may happen once a year, a massive improvement on the current rate of heavy vehicle bridge strikes, estimated at about once a week. The only possible issue here would be if there are underground services that are too close to the surface. Tram disruption would be minimal (if any at all), and road disruption should only need to be limited to one lane each way for the duration of the works.
It would seem there is more of an impetus to get this done now. It seems to be a news item every time it happens now, as oppose to the slim mention it was lucky to get in the traffic report before. The Gold Bus incident in January has changed things. I expect if it hasn't been fixed by the 2018 election, it will be an election issue.
Its easy to say "Oh its the drivers fault, they should know better, fine them more, take their licenses away blah blah blah" and its easy because its pretty much right on the money. The only problem is, saying all of that every time it happens hasn't stopped it happening. Sinking the road 1.5M lower will stop it from happening.