FIX: Incorrect scaling of the number of passengers/mail by density. Now, density has no effect on the volume of passengers/mail generated.
FIX: Properly calibrate the passenger journeys and mail packets per hundredths of months to take into account the number of passengers/mail packets likely to be generated in a single step
CHANGE: The passenger destinations map now shows a dark purple colour, rather than a pink colour, when a private car journey is too slow. Player transport journeys that are too slow are still shown in pink.