Key points are not available for this paper at this time.
We show that the dynamical structure factor investigated by Roters et al. Phys. Rev. E 59, 2672 (1999) does not allow the determination of the precise nature of the transition in the Nagel-Schreckenberg cellular automata model for traffic flow. We provide evidence for the existence of a crossover instead of a critical point.
Chowdhury et al. (Wed,) studied this question.