Join Date: May 2011
Location: north Wales
Thanked 12 Times in 12 Posts
Sat navs do sometimes seem to assume that motorways are always faster. When we visit family in Colchester, driving from N Wales, we usually take the M6 and then the A14 (via Cambridge) to Ipswich, then A12.
The alternative is to turn off the A14 at Cambridge and take the M11. According to google maps, this second route takes 10 minutes longer, and in practise can be much slower if there is congestion around Stanstead, but the sat nav, set to fastest route, always tries to get us to take the M11.
It's always worth checking the map before you set out, rather than relying on sat nav.