As per the Microsoft documentation I've created a VB6 Addin so I can adjust the speeds via proper speeds instead of the unhelpful average +/- slider.
I'm using Mappoint 2011 Europe.
I think there is a bug in there as the Motorway / Limited Access Motorway settings are being transposed, but not by all methods.
If I adjust the geoRoadInterstate & geoRoadLimitedAccess they are being transposed when I look at the subsequent slider positions as one is incrementing the value of the other.
When I use the 'sliders' and look at the subsequent values they are OK as the Motorway slider is indeed adjusting the geoRoadInterstate.
The other 3 are OK.
I've determined that the default values are:
Limited Access Motorways 62
Major Roads 40
Minor Roads 34
So when it's calculating journey times for Motorways is it using 70 or 62 ?