GO Mobile (iOS): Single track road avoidance option
There are times when it’s nice to drive single tack roads but there are other times when you need to avoid them.
In England, and presumably it’s similar in other countries, single track roads often have the NSL (National Speed Limit) applied to them. The NSL in England is 60 mph (97 km/h), which is ridiculous as the actual speed of traffic on some of these single track roads may be nearer to 20 mph (32 km/h) due to that nature of the road and the need for caution when trying to find a passing place when you meet vehicles travelling towards you in the opposite direction. The speed limit of 60 mph (97 km/h) may also make TomTom unnecessarily favour that single track road.
In certain areas of England (i.e. Cornwall and Devon) there are a lot of single track roads and certain times of the year there are a lot of sightseers and holiday makers who drive these single track roads out of curiosity, which makes unnecessary navigation of single track roads unpleasant, slow, and even dangerous.
If the GO Mobile (iOS) maps contain enough data for 3D, then presumably the maps will already have the more essential data such as road type, width, height restriction, weight restriction, etc. so it should be easy to avoid single tack roads in TomTom GO Mobile (iOS).
Presumably the best place to put the option to avoid single tack roads would be:
Settings | Route Planning | Avoid on every route