getTier method

SpeedTier getTier(
  1. double speedKph
)

Gets the appropriate tier for a given speed.

Implementation

SpeedTier getTier(double speedKph) {
  if (speedKph <= 0) return stationary;
  if (speedKph < 5) return walking;
  if (speedKph < 30) return city;
  if (speedKph < 80) return suburban;
  return highway;
}