ROAD TRAFFIC FLOW CONSIDERED AS A STOCHASTIC PROCESS*

By A. J. MILLER

I am grateful to G. F. Newell for pointing out an error which occurs at the bottom of page 322 of this paper. The distribution hf(u) is the spatial distribution of desired velocities and hence is the expected distribution of these velocities over a length of road at a random time. Hence in determining hf(u) in terms of hf(u), the relative times, rather than distances, travelled at restrained and unrestrained velocities should have been considered. (30) and (31) should be corrected to read

* Vol. 58 (1962), pp. 312–325.