On 34 when you go left to get on 91 N, there are 2 lanes. Then, out of nowhere, w/ NO signage, those 2 lanes become 1 and then w/in a second you are in the fast/left lane of 91, travelling at high speeds. If there is no traffic, fine, but several times, I ahve seen an aggressive driver come up out of nowhere, speeding (everyone speeds over 45 on 34, by the way - pls ticket to stop this!) and then when those 2 lanes go down to 1 w/o warning, there is sometimes a near collision. I think that some warning signage that at least says yield or rt lanes ends will help make this less dangerous, less of a liability, as drivers will know who has the rt of way. Bravo for the other recent 34 improvements, by the way!