1. Great Eastern Highway: This highway connects Perth to the town of Norseman in Western Australia. Most of this stretch is sealed and in good condition for driving.
2. Transcontinental Highway: The Transcontinental Highway continues east from Norseman, through the Nullarbor Plain and into South Australia. The majority of this road is also sealed and suitable for most vehicles. There are long stretches of straight, flat road in the Nullarbor region, but you'll encounter varying landscapes along the way.
3. Eyre Highway: If you choose to take the southern route through South Australia, you'll follow the Eyre Highway from Ceduna. This highway is primarily sealed and well-maintained.
4. Stuart Highway: The Stuart Highway runs from Port Augusta in South Australia all the way to Darwin in the Northern Territory, passing through Alice Springs. It's one of the major arteries connecting northern and southern Australia. The Stuart Highway is mostly sealed and generally in good condition for driving.
Overall, the roads between Perth and Alice Springs are mostly paved and accessible, but weather conditions, remote areas, and roadworks can impact the safety and speed of your journey. It's essential to plan your road trip carefully, obey speed limits, and pay attention to road signs and weather updates before venturing out. Regular vehicle maintenance and safety precautious are a must when undertaking a long road trip in Australia.