Autorouting is a nasty word to many designers. Many would not be caught dead doing anything other than interactively routing the complete design. Their reasoning may be sound – but dated. Past generation routers would run a long time, only to leave a design with blocked channels, too many vias, traces that looped around the board, not to mention poor, if any, adherence to high-speed rules. They would leave many unconnects, and/or DRC conflicts that would need to be resolved manually.
Today’s routers – at least PADS’, have been designed to deliver high completion rates, with manufacturability in mind. Minimal cleanup is needed after the routing. Plus – you can control the routing. Select only the sections, or nets, or components you want autorouted. Interactively route the rest! The autorouter is a tool. Use it selectively and intelligently to increase your productivity!
There is a great video here to learn more.