London Underground Network

[JamesSmith5]

Dear all,

I realise that this is a complicated question, but could someone point me in the right direction for how I might build a Network dataset of the London Underground within ArcGIS 10 so that I can use the Network Analyst tools on it...?

Thanks

James

[JaySandhu]

If by London underground you mean the map where all the rail lines are offset? Well you will have to establish connectivity with extra links for the transfer points. You could take a look at the Paris network in the Network Analyst tutorial on how to connect two different modes together. Just remember that the route solver does not have a way to honor the train schedules.
Jay Sandhu

[JamesSmith5]

Hi again Jay,

So essentially I need a shapefile of points, and a shapefile of lines, and then follow the network analyst tutorial here?

http://help.arcgis.com/en/arcgisdesktop/10.0/pdf/network-analyst-tutorial.pdf

(I realise I'm simplifying alot!)

James

[JoeBorgione]

Hi again Jay,

So essentially I need a shapefile of points, and a shapefile of lines, and then follow the network analyst tutorial here?

http://help.arcgis.com/en/arcgisdesktop/10.0/pdf/network-analyst-tutorial.pdf

(I realise I'm simplifying alot!)

James

Not to steal Jay's thunder, but yeah, that's about right.  I googled London Underground Shapefiles and found a download of the station locations (no .prj file though) Haven't come across the actual 'tubes' as they are known.

[MelindaMorang]

Hello everyone.  I just wanted to let you know about a new prototype tool from Esri's Network Analyst team which allows you to add GTFS public transit data directly to a network dataset.  You can use this network dataset with the Network Analyst tools to run time-aware analyses that incorporate the transit schedules.
You can download the toolset and instructions here:
http://www.arcgis.com/home/item.html?id=0fa52a75d9ba4abcad6b88bb6285fae1
Please do not hesitate to contact me at mmorang@esri.com with questions or comments about this toolset.