If I could, I think this adds one more layer of stress to our drivers, in that there's no alternative for them if they meet those challenges doing their job. They have only one option in this case, and that is to make it on time. By building in flexibility, you're relieving stress and the encouragement to do unsafe activities.
Our truckers care about their livelihoods. They care about the fellow vehicles on the road, but they also care about the animals under their care. By adding more stress on them, we're not accomplishing increased safety. We're actually making it worse.