Surely you had right of way though? If she was in the lane that merged into yours, the surely its her responsibility to mirror signal manouvre? not just carry on regardless and crash into whatever happens to be in the lane shes merging into?
There is a lot of these 2 into 1, 3 into 2 roads by me, there is also one where you come up under and bridge, and there is traffic coming from the left, 2 lanes from under the bridge, 2 from the left, then it all merges into 3 lanes, then down into a narrow 2 lanes before a set of traffic lights, bottle neck style, the amount of people who dont indicate, let alone look or indicate is unreal, been so many accidents there.