The specifications for Assignment 2, Task 3 state: "less than a kilometre or twenty
minutes walk from a train station". I deduced the walking speed from this statement and
applied it to compute the time to walk to the nearest station.
In an earlier post Chris McDonald stated: "The walk from Fremantle Station to the Rottnest Ferry is (about) 5 minutes, so use that in your calculations."
Information on the time to transfer between two routes can be obtained by referring to the