rustyb/an idea for transport app

## an idea for transport app
Apologies couldn't actually find you email so figured I would send it like this....

  Hi David – Hope the move from Boston is going well!

  I was thinking of something that might be useful / interesting to persue.

  Basically the idea I had was taking the Dublin transport network and basically you would be able to drop a pin on the map and it will tell you how far you can travel within 15, 30 and 45 minutes. You would also be able to adjust the search by restricting it to the more frequent routes and what not.

  I assume this would be simple enough if it was constrained to how far can I travel on say route 16 in 30 minutes, but would become much more complex once you introduced changing between a service?

  I also presume it would require a sufficiently calidrated network graph to run the calculations on?

  The idea being to possibly demonstrate where is really badly served in terms of accessibility to the city even though it appears to have lots of services near it.
	Apologies couldn't actually find you email so figured I would send it like this....

	Hi David – Hope the move from Boston is going well!

	I was thinking of something that might be useful / interesting to persue.

	Basically the idea I had was taking the Dublin transport network and basically you would be able to drop a pin on the map and it will tell you how far you can travel within 15, 30 and 45 minutes. You would also be able to adjust the search by restricting it to the more frequent routes and what not.

	I assume this would be simple enough if it was constrained to how far can I travel on say route 16 in 30 minutes, but would become much more complex once you introduced changing between a service?

	I also presume it would require a sufficiently calidrated network graph to run the calculations on?

	The idea being to possibly demonstrate where is really badly served in terms of accessibility to the city even though it appears to have lots of services near it.