Hello folks! I'm using mapfactor navigator free for more than a year and I like it very much. But the routing procedure and the speed handling still bear some secrets for me.
As far as I can see speed limits are disregarded more or less. If I use the settings in the table below and use simulation mode, the actual speed is higher than the speed limits shown at the traffic signs.
Car setting: Car, no changes Speed warning checked, 0 % over limit
Streets without speed limits: simulated "extra urban" speed is as set in the parameters of the car settings simulated "urban" speed is completely disregarded --> Simulated speed is as set for "extra urban" in the car settings.
This happens with the free versions (OSM maps) for Windows & Android. I checked this in and around Berlin - Germany
As I read in other posts here, it is not possible to handle "urban speed" right because there is no equivalent tag in the OSM maps.
But what about the speed limits? Why is the simulated speed much higher than the speed limit? I'm afraid, not only the simulation mode is concerned but also the routing and the calculation for the time consumption of the route.
What works well for me in the Netherlands (but also Belgium, France so far) are the following settings: General topspeed: 115
default MFNF mine
motorway 130 80 50 115 70 60 primary 90 50 50 85 50 55 major 85 50 50 80 50 52 secondary 80 50 50 70 50 50 local conn roads 70 50 50 65 50 50 lcl rd oh imp 60 50 50 60 50 50 local road 60 40 50 50 40 50 small local road 30 30 50 Note: I definitely don't say that these are the correct values, but they simply work for me. I have no insight in the exact routing algorithm Navigator uses, so for me it is also some guessing. Note also that I added the "small local roads" which are switched off by default in Navigator. In the Netherlands however there are many suburban areas where the speed is 30 km/h. If I don't use that last settings I really see that Navigator is moving too fast to bigger roads in my city and other cities resulting in D-tours.
Edit: And it's really horrible to modify these settings with these mini sliders :)
"...but also the routing and the calculation for the time consumption of the route. "
That's why I adjusted the profile of my own car (separate profile) by substantials margins. I.e. inside towns from 18km/h to 25 km/h according to the importance of the road, preset for all roads is 50 km/h. Outside towns as well changed from preset speed to lower speed by a substantial margin. Route calculation is now only within minutes from reality.
Yes and No. Next to the speed setting you have the preference setting. So you have to adapt them all in the correct way. With the speed and/or the preference.
The problem is the missing of informations about urban status on street data in OSM. There are just punctual informations on roads, where signs show the beginning or end of urban areas.
I believe what you said and I agree. I have not investigated much.. but I found that simply reducing the maximum speed of my car (115 km/h instead of 130 km/h) made Navigator choose a different route. With 130 as maximum speed, it decided for a faster but longer route using the ringroad around Rome which can be considered like a motorway, I think. When I set 115 as maximum speed it chose the route across the city center, slower but shorter. Well, that's normal, but it made me understand that these settings can affect the route chosen.
Perhaps, reducing all speed settings by the same percentage (maybe 25%?) can give good results without affecting route choice.
I thougt about urban status of roads. One indication in OSM-data for them are the areal informations about landuse as residential, industrial and retail. If MNF would set the roads within these areas as urban, it could be a nearby workaround.
"In the citythe effectivespeed of traffic is(taking into accountdowntimesoftraffic control,speed limit,traffic congestionandlooking for parking space)today10-15kmper hour"
Thanks for your replys and hints. I reduced the extra urban speeds of my car profile a lot and get much better results, even without changing route preference. In addition I set all urben speeds to zero. I really looks like it doesn't affect anything.
Here is my profile for "long distance" from top to bottom: id (in xml-file): extra urban/urban; 0: 100/0; 1: 70/0; 2: 50/0; 3: 30/0; 4: 30/0; 5: 30/0; 6: 25/0; The rest is diabled. As a first try it works fine.
I0BMP said: "I believe what you said and I agree. I have not investigated much.. but I found that simply reducing the maximum speed of my car (115 km/h instead of 130 km/h) made Navigator choose a different route. With 130 as maximum speed, it decided for a faster but longer route using the ringroad around Rome which can be considered like a motorway, I think."
Of course. That's exactly why I said you need to modify the road preference as well. If your topspeed is 110 and both trunks and primaries can (almost) offer that it will choose a primary or trunk road instead of a motorway. So you lower the speed of a motorway (and trunk) and you increase the default preference of a motorway from 50 to 60. That way it will still try to use the motorway even though there is no speed difference. Simply because you favor a motorway (pref 60) over a trunk (pref 50).
So again: Change both the speeds and preference and make a good mix.