We know for certain Amanda was not speeding because we track her phone through GPS due to the severe sleepwalking. Seeing the results of running off the road at an unbraked 45 mph has shaken me. I don't think I had given it enough thought to realize what would happen at that "safe speed."
I also erroneously assumed that a back road was safer than a highway. I was informed that the highways have more safety features not present on the back roads. Most roll overs happen on back roads because there aren't guardrails near bad ditches and the roads are narrower so you encounter the "trips" more often.