The odds are that self driving cars will stick to the posted speed limit, and that those limits will not be raised. This will reduce the available capacity of many interstate grade roads, as the posted speed is often unsafely low. On the roads around here, the accepted and safe speed is often around 70mph, but the posted speed is often 55mph.
Additionally, self driving cars appear to have a higher accident rate per mile driven (5x). This appears to be at least partly the result of the self driving cars performing unorthodox maneuvers in some situations.
https://www.motorists.org/blog/speed-limits-slower-safer/
Additionally, self driving cars appear to have a higher accident rate per mile driven (5x). This appears to be at least partly the result of the self driving cars performing unorthodox maneuvers in some situations.