A couple of odd things:
AM network extended into Keswick Interstate terminal itself, see map on page 18.
Mile End Goods station is back, hope they plan to build something worthwhile near it.
Tram diverts off Pultney Street where the city loop will be.
Working on the shaky assumption that this "plan" is for real and not just part of the election campaign*, I agree with your point 3 - who on earth seriously thinks that the best way to improve public transport usage is by making it worse?
I wouldn't read too much into the first two "odd things" you've mentioned from the random hatchet job that is the city map, they are just vaguely labelled as "rail transport improvements" and "passenger transport improvements" without anything in the text giving them any context. My guess is that the blue dot in the rough area once occupied by the Mile End Goods station represents nothing more than the city loop tunnel portal, not necessarily a rather pointlessly-located station requiring a walk of hundreds of metres on a below-standard footpath to get to anything useful.
I also agree that the tram diversion from Pulteney Street to Frome Street is odd for a similar reason to your point 4 - because a whole lot of money is currently going into turning Frome Street - which is only four narrow lanes wide - into a bike route. If the bike route and tram line are going to coexist, there will have to be a full closure to motor traffic, with the same applying to the Halifax-Sturt axis. That would be a very interesting prospect, but I doubt it will impress the local traders on those streets.
The other inner suburban tram routes proposed to run along Glen Osmond Road, The Parade, Unley Road and Prospect Road are all going to require slimming down to a single general traffic lane each way and no parking for the trams to work, and as with Frome Street, Sturt Street and Halifax Street that's going to piss off a lot of businesses.
* the premier will have major problems if it turns out this is just campaign material, it would make the fake how-to-vote cards scandal look like a walk in the park.
... some badly needed things that were talked about for literally sixty or seventy years. And fixing that Dean Brown mistake of the silly cut-price reversible expressway ...
Duplicating the SExy is the last
road project that needs to be done on the north-south corridor. It does a great job of relieving Main South Road and getting it flowing nicely during the weekday peaks, but outside of the peaks (including traffic flowing in the opposite direction during the peaks) Main South Road already flows freely and there is no need for extra capacity to relieve it. If it had been left until after all the other parts of this "30 year plan" (a plan to keep Labor in government for 30 years?) were completed, by that point private motoring might have become too expensive and public transport too competitive for the SExy duplication to be necessary.
There's a lot of people who (believe it or not) love the Obahn and want it to stay as it is. I've been shot down in the past for suggesting they should replace it; however the main problem with the Obahn as I see it is the lack of capacity. You can't couple buses together at peak times.
I agree, of all the things that could be fixed or improved the O-Bahn is not one of them that is anywhere near a major issue. While you can't couple buses, with rubber tyres for better traction you can run them very close together compared to trains or trams.
If it is to be replaced at some point the aim should be to go for heavy rail rather than trams. Trams would be slower, and a waste of such a well-separated corridor when you could instead have EMUs running into the city underground and out the other side towards Seaford.
Have to agree there, I think the Outer Harbour line is simply too long for it to be practical. If they want trams in the Port Adelaide area they should consider reinstatement of some form of the local area system that was once there (maybe Semaphore to Rosewater via Port Adelaide?) and have interchange points with the heavy rail system.
I also agree. A route running from Woodville station to West Lakes, Semaphore, Port Adelaide and via Hanson Road to Prospect could be a good option there to provide for a number of local journey options which would traverse residential areas, link with major trip generators and connect to heavy rail.