I've been thinking a bit about this and I think there are some tests you can perform, which would give you a pretty good rate of success.
1. You can get a shapefile of coastlines and, whenever the word 'ferry' appears, test against that shapefile if you are on land or on water. 2. The turns and steps of the directions, just before a ferry, and just after a ferry, are often very small, like a few hundred feet to the right and 0.2 miles to the left, when you are manouvering in the harbour. Such small steps in the ends, with a longer segment in between them, in addition to the word 'ferry' in the description, almost certainly mean you're sailing. 3. The segments of polyline that make up the sailing route are usually much longer than the average polyline segment on land. (unless you're driving on North Dakota, but then again, I haven't seen any ferries there.) :-) 4. There may be some more tests you can do, specific to your area of coverage. Just some ideas. :-) -- Marcelo - http://maps.forum.nu -- --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to Google-Maps-API@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Maps-API?hl=en -~----------~----~----~----~------~----~------~--~---
