Quote Originally Posted by LaMotta View Post
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That depends how much you value your time over a few quid saved on fuel
Studies, and personal experience, show that over a typical 30 mile drive on mixed roads, the car that flew past you on the dual carriageway half way is only 3 or 4 cars ahead of you at the next set of traffic lights.

Assume that you could drive from Edinburgh to Inverness at a constant 60mph before the A9 is dualled it would take 2 hours 44 minutes. Then assume once it is dualled you drive at a constant 70mph, it will take 2 hours 21 minutes. The 10mph faster has saved you a whole 23 minutes. Hardly worth the effort.