But what about the Entertainment Centre to Pirie Street or Victoria Square?
For the Entertainment Centre they would use Bowden Railway Station (whether above or below the ground) which is only a couple of minutes further to away on foot than the tram stop, and with pedestrian-activated lights on both sides of Port Road giving nice safe access. It is just a touch further if you need to get to the Adelaide-bound platform,
For other locations within the CBD it will still be quicker to come in on the train and then head up to the tram stop. If the train left Bowden and the tram left the Entertainment Centre at the same time (and both ran on time) a person getting off the train might even be able to get the previous
tram if they could escape the station quickly.
The trams work very well shifting huge numbers of people within the city, and I think you'll find the Citadis are 5 unit trams.
They are kind of okay, but not really faster than even walking over a distance such as ARS to the Central Market - unless one comes along at just the right time and is not packed full. It's definitely far slower than cycling, I can kick the tram's butt over the whole length of the city shuttle route even if it has a string of short dwell time stops.
The Flexity and Citadis trams are of completely different designs with the way their segments fit together, so that the three-segment Flexity is only two metres shorter than the more modern double-articulated Citadis. Simply talking about the number of segments doesn't really mean anything when you have some articulated trams and some double-articulated trams with shorter segments.
Sounds like an excuse not a reason.
If the MFS or SA Ambulance could use a tram then I might agree with such an obvious "screw the rubber tyred set" caricature.
When the existing railway service isn't up to scratch and doesn't service the CBD there is every reason to replace it.
The biggest problem with replacing the Outer Harbour line with trams that join the current tram line at Hindmarsh is that it would make public transport worse, not better. It may not be a fantastic service currently, but scrapping the trains and using trams is not going to fix it!
Using the Port Road alignment for that would be just silly, while the train runs into the city you're left spending nearly triple the time lurching from stop to stop like you're with a teenager learning to drive a manual for the first time.
If the Outer Harbour line was to be replaced with trams and still be an improvement to public transport, it has to use a different alignment. Perhaps it would be worth considering keeping it using the Bowden underground concept and the grade separation under the ARTC line, then getting a bit different from there. One option would be to use War Memorial Drive and Morphett St to get onto the main east-west public transport axis of Currie/Grenfell St (and an eventual extension along The Parade) or to access the same end result using current rail land then rising up to join Morphett Street on top of the bridge.