>Also seen in the planning of curves in roads (where jerk corresponds to the rate at which a steering wheel must be turned) and railways. Just for the record,

>Also seen in the planning of curves in roads (where jerk corresponds to the rate at which a steering wheel must be turned) and railways. Just for the record, the transition curve is usually (not always but very often ) a clothoid (or Euler's spiral or Cornu spiral) https://en.wikipedia.org/wiki/Euler_spiral https://en.wikipedia.org/wiki/Euler_spiral