Hourly vehicle counts on Monash Freeway, outside Melbourne in Victoria, Australia, beginning August 1995.
Source
Hyndman, R.J., Koehler, A.B., Ord, J.K., and Snyder, R.D., (2008) Forecasting with exponential smoothing: the state space approach, Springer.
Examples
plot(vehicles, main = "Hourly vehicle count", xlab = "Day", ylab = "Number of vehicles")