I am planning a route using TomTom commercial maps to a campsite in Devizes which is at one end of Spout Lane and I would have expected to approach it from the A365 which is to the North. Calculation is set to 'fastest'.
I have spent a considerable time fine tuning my vehicle profile by adjusting the speeds and preference. From the default line coulour Spout Lane appears to be a 'local road' which I have set 'extraurban' to 10mph 'urban' to 6mph and preference to 5%. 'use speed restrictions' is checked.
I did not want to travel along the road from the South as it is very narrow so decided to 'disable a link'.
The popup correctly states that there is a 7.5t weight limit but also that 'speed limit' = 59.7mph (national speed limit?) and average speed = 21.7mph both of which can be adjusted!
I am confused by this an would have expected to see the speed I had set in the profile.
Am I doing something wrong? Which speeds does Navigator use when calculating a route and how does 'preference' work.
Spout Lane runs from 51.350061, -2.075147 to 51.35715, -2.071953