Vague Query?


New to mapping, so please don’t assume I know anything.

I think I can get a database of Australia’s Highway 1, but not sure about any of the details.

What I’m hoping to achieve, is to calculate latitude and longitude for a position, which lies x km along the highway, from a starting position.

Anyone care to offer even ball park suggestions, as to how that might be achieved?

I’m hoping to achieve this within a php program, or perhaps to derive a database of coordinates, that lie at various distances along the one path.

Any clues gratefully received.


Ew, not sure I can figure out how to find or derive the Australian Highway 1 coordinates database now.

What about starting at ?

Thanks, stephan75.

That’s something to digest.