Road transport Brisbane's consists of a network of highways, freeways and motorways. Some motorways have tolls applied.
The Brisbane River has created a barrier to some road transport routes. In total there are six road bridges, mostly concentrated in the inner city area. This has intensified the need for transport routes to focus on the inner city. There are currently multiple tunnel and bridge projects underway as part of the TransApex plan.
Brisbane's road system was planned around large, spacious suburban areas. Dense suburbs now rely on several main road corridors that split through and between these areas and provide the only link to the CBD and other areas of Brisbane. Logan Road, Moggill Road, Old Cleveland Road and Gympie Road are but a few of these multi-lane corridors that come out of the CBD and snake through the suburbs.
Bypasses such as the Inner City Bypass, the future Airport Link and Clem Jones Tunnel are intended to help to circulate traffic away from the inner-city areas and main roads via limited-access roads above the ground, and tunnels below that have higher speed limits and exits to particular suburbs.