The Fairview Park Go Zone looks like the old 541 route that terminated at stop 65 Yatala Vale Rd many moons ago.
Sturt Rd was never promoted as a Go Zone but rather a High Frequency Link between Marion Centre and the Flinders precinct. According to the G20-G22 timetable from January 2011, Monday to Friday services operate every 10 minutes and the night and weekend frequency is 30 minutes.
Diagonal Rd between Glenelg and Marion Centre almost qualifies for a Go Zone but just needs a few extra night services.
The Adelaide O-Bahn no longer qualifies as a Go Zone following holes in the night timetable greater than 15 minutes since October 2011. There is not a bus every 15 minutes from the City to TTP until 10pm which is the stipulated cut-off time for Go Zone conditions. Don't even get me started on the C1/C2 timetable....

Time to get bus priority and tram priority through the city and suburbs.
Time to police bus lanes which are used by arrogant car drivers.
Time to work for better timetables and better connections.