Passengers on Brisbane's bus network have been told to expect delays and be prepared to walk longer distances during the G20 long weekend.

Translink said all bus routes within the CBD, South Brisbane and surrounding suburbs would be affected, with five routes not operating between November 14 and 16.

One of the proposals involved increasing the capacity for buses on Victoria Bridge Credit:Harrison Saragossi

They are the Route 61 Maroon CityGlider, Route 66 UQ Lakes to Woolloongabba, Route 139 Sunnybank Hills to UQ Lakes, Route 169 Garden City to UQ Lakes and the Woolloongabba-UQ Lakes shuttle.

Passengers on nearly all other affected routes will travel to and from designated transport hubs on the outskirts of the city. Commuters will then need to board trains, ferries or shuttle buses to get to the CBD.