The most obvious difference from the official map is line grouping and colours.
To make the network easier to understand, I decided to arrange lines into six groups:
- La Trobe
||1, 3, 3a, 5, 6, 16, 64, 67, 72
||All lines travel down Swanston Street/St Kilda Road.
||19, 57, 58, 59
||All travel down Elizabeth Street except for the 58.
||11, 12, 48, 109
||Changed this group from ‘East’ to ‘Collins’ by moving the 30 into a new ‘La Trobe’ group with the City Circle (35).
||All travel down Bourke Street.
||New group created in v0.4
||All travel down Flinders Street.
||The only two lines that do not travel to the CBD.
These are arbitrary groupings to a certain extent. However, I have tried to make them as logical and few in number as possible based on common routes and other similarities.
The main aim here is to make the lines easier to read. At the moment, line colours on the PTV map are randomly selected from a standard colour palette. There are some advantages to this approach. But to my mind it makes the map look more difficult to understand.
As for the colours that used in the map, each group has a base colour with various shades for each individual line. Some of them are a little light or dark (particularly lines 1 and 72) but with my approach this is not easily avoided.