Submitted by thatlattesipper.

Sydney Trains routes (complete with new “T-line” branding) for the north and west of the city overlaid on a Google Earth image.

If nothing else, this map reminds us of how staggeringly huge Greater Sydney really is. It’s 20 kilometres in a straight line from the dot representing Central Station at the lower left to Hornsby (just off the right of the map), and over 30km from Central to Prospect Reservoir, the large body of water just glimpsed at the centre top of the map. And this view doesn’t even show the entire southern half of the city (it’s another 20km from Central south to Waterfall) or Western Sydney from Prospect out to Emu Plains.

Some perspective: Greater Sydney has a population of around 4.6 million and an area of 12,100 square km (a population density of just 380 people per square km). The five boroughs of New York City have a population of 8.3 million in just 786 square km (or approximately 10,600 people per square km!)