i dont get the pedestrian bridge thing - that end of the city fringe is deserted, and to get there from the heart of the city (malls) is a walk in itself, let alone a further walk over the bridge itself. if it was a light rail bridge (or electric buses bridge) with a track or circle route to /from wellington street that would be better?
but i guess thats more coin...
The major (well largish) car park located at WACA/Gloucester Park will be used. Red/Yellow Cats bringing peeps from City also go through there. So there probably will be good pedestrian traffic that will need a more direct route than Causeway or Graham Farmer round about ways.