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Delfin

Planning a trip from Munich to Athens I get "No route available".

Loaded maps: Germany, Austria, Slovenia, Croatia, Serbia, Macedonia, Greece

Default car profile.

tomas

please provide departure and destination in coordinates

Delfin

Departure: Munich Town Center: 48°08'13.8 N, 11°34'31.1 E
Destination: Athens Town Center: 37°59'02.3 N, 23°43'40.4 E

tomas

please check your departure, it seems to be in area not connected to road network

Delfin

New coordinates:

Departure: Highway near Munich: 48°00'25.6" N, 11°40'10.9" E
Destination: Highway near Athens: 38°04'22.0" N, 23°46'11.2" E

---> same result: "No route available"

tomas

you may need Montenegro?

Delfin

Why should we need the map of Montenegro when we want to go from Munich (or Praque, or Vienna ...) to Athens? The optimal route is via Macedonia.

Oldie

At least Google maps does not include Montenegro. I uses just the countries, @Delfin has listed in the opening post.

hvdwolf

@Delfin: Mapfactor doesn't "know" what the optimal route is. It simply calculates a route via the A* algorithm, meaning from departure and destination towards each other, cutting off paths sooner or later via the heuristic coefficient (and a few other parameters).

In this algorithm, moving from both destination and departure, calculation is done via "shortest paths", thereby following several paths. In one or more of these paths working towards each other, there is suddenly a "white spot without roads" being Montenegro. That is why it fails.

With Montenegro in place it can follow one of the "best low cost" paths it has already pre-calculated. And probably after having calculated "the cost" through Montenegro it might detect that the route through Macedonia is indeed better (less costs).

And maybe you only think that via Macedonia is more optimal, but theoretical mathematical and statistical calculations prove that through Montenegro is more optimal. And then again: we all know from daily experience that some calculated routes are not always the best because your have 200 traffic lights on that route and maybe one on a 5 km longer route.

So please download Montenegro and test it out. If you really know what the optimal road is you don't need a navigation app.

Allan_Whoops

I use a navigation app for both finding my way to new destinations and, more importantly and the majority of the time, traffic on known routes. I think you may find that a lot of people do the same.

It would be helpful if, instead of saying 'route not found', there was more of an explanation as to where and what the problem is.

Delfin

I installed the map of Montenegro. No change; still "No route available".

tomas

may be your vehicle settings is incorrect, please try default

hvdwolf

I just checked myself.

You need Kosovo

Delfin

@ tomas: I have the default car settings. To be sure, I uninstalled and reinstalled Navigator and made no changes in the settings.

@ hvdwolf: The following maps are now installed: Germany, Austria, Slovenia, Croatia, Serbia, Macedonia, Greece, Kosovo

--> PC version: "No route available, Android version: "No route found"

tomas

please install Montenegro

Delfin

Maps installed: Germany, Austria, Slovenia, Croatia, Serbia, Macedonia, Greece, Kosovo, Montenegro

Same result: "No route available" / "No route found"

tomas

please email support

Delfin

For Navigator to find a route from Munich (or Prague, Vienna ..) to Athens, the map of Bulgaria must also be installed.

Navigator then suggests a route via Sofia. This is 212 km longer than the route calculated by other navigation apps (Here We Go, Google Maps, OsmAnd ..).

Is there a bug in the routing algorithm?

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