View attachment 17556
Dash is possible. See the A4.63 example, where a unit is Dashing from CC8 to AA7. The last sentence is "None of this would change if the road ended in BB7, or if there were another road running from AA7 to CC8."
I'm late to this thread and I assume that there has been no response to the Q&A?
I'm not sure that this question has not already been answered in the Q&A that has already been referred to and which, in my view, is consistent with the EX in the rulebook. I have done a screenshot showing them side by side for ease of reference.
So let's assume that the 467 in CC8 is the equivalent of a unit in G7 in the second example. We can examine the "road ending in BB7" situation first. In that scenario, the 467 is directly opposite AA7 and must therefore cross the road to reach it in a two hex path. Therefore it meets the criteria for dash movement. In the Q&A, a unit in G7 is not on the other side of the road from anything unless that road were to extend into M7 or F7. It can reach either F7 or H8 crossing one hex without having to cross the road whereas in the original rulebook example it can't: it can only reach its destination two hexes away by crossing BB7.
Turning to the hypothetical road running from AA7 to CC8 in the original rulebook EX, the equivalent in the Q&A would have the existing road running into G7 but there would also be a road running from F7 to H8. This is the road that would be crossed to allow dash movement.
Turning to the OP, I would say that dash isn't allowed because M5 to N7 isn't crossing a road. There is a "two hex" path to M7 through M6 and therefore doesn't meet the necessary criterion to be considered to be eligible for dash movement. If the road extended from N6 to M6, dash would be allowed.