Talk about stuff things up. I was close to the CBD today (only been into the CBD once in the last 5 years). I take my wife to a matinee concert at Hamer Hall on St Kilda Road, between the Arts Centre and Princes Bridge. My normal route is along Olympic Drive, between AAMI Park and Rod Laver Arena, over the Swan St Bridge and around Linlithgow Avenue to St Kilda Rd.The last couple of times Linlithgow Ave has been closed for roadworks. It is now one very narrow lane each way with kerb and post barriers down both sides to protect bicycle lanes the full width of a normal traffic lane. Cars were creeping along nose to tail, and not one bicycle in the bike lanes.
Then, Southbank Blvd, at the southern end of the Arts Centre, is now also one lane each way for part of its length with a reserve for trams down the middle with grass between the tracks. At the intersection with Sturt Street, if you make a left turn into Sturt St, only 3 cars can get around because there is a set of pedestrian lights just around the corner.
Can you imagine them closing down one whole block of George St in Sydney for 3 years? That's what is happening in Flinders St, between Elizabeth St and Swanston St, while they build the new underground railway.