Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Probability mass function of journeys as a function of origin-destination separation d for a) weekdays and b) weekends; distance decay function of journeys as a function of origin-destination separation f(d), scaled to account for variations in the proximities of popular source/destination stands (see text) for c) weekdays and d) weekends; and Probability mass function of journeys as a function of journey duration for e) weekdays and f) weekends.
