Whether you find traveling to be a joy or a chore, we all have to do it from time to time. For those occasions when there may be safety concerns, a bit of magical defense is handy to use.
Envision the person (or people) to be protected surrounded by a silvery bubble of protection. Make this mental image as strong as possible, and infuse into it all the love and concern you have for the person. When you feel that the power is at its peak, say:
By hoof, by wheel, by boat or plane,
This spell can be repeated as often as desired.