i am trying to create a multimodal network dataset, comprising roads, waterways and ports. When i built the network i received the error message "Standalone user-defined junction is detected.". After looking at the locations of the ports, it seems that the ports are neither located on a street nor on a waterway. So it's obvious why the error message was displayed. And now this is where my problem starts. How can i use the ports for transit between the two modes? I read in this thread about buffers around transition points but i have no idea how to implement such a solution. I am able to create buffers around the ports, but polygons are not usable in the network dataset wizard. Or is there another approach for such problem? Any help is appreciated!
The best way to use point locations such as ports is to add/digitize new links to connect the port to the relevant location on the rest of the network. You could take a look at the Paris multi-modal dataset that is part of the Network Analyst tutorials to see how roads are connected to bus stops/transfer stations to rail. The exercise 2 is here: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Exercise_2_Creating_a_multimodal_netwo... Regards, Jay Sandhu
