
Quoting
cdwjava
Lanes are numbered from leftmost to right (and I can't access my own link from here at work to see if it was indeed the #2 lane - network issues with cookies), but what I think you are asking is if it is legal to make a right hand turn from a lane OTHER than the righthand most part of the right lane (when not otherwise indicated). The answer is, no. However, if the driver and the facts indicate that he was straddling both the right hand turn lane and the next lane, then, given the fact that the truck would not be able to make such a turn from the righthand most portion of the lane would make it permissible. If we assume that the turn was being made from a lane other than the righthand most lane, even if it might have been in technical violation of the statute, this - by itself - would not place liability upon the turning vehicle. That act would have to be coupled with other factors to make it into an unsafe turning movement and, thus, the PCF.
However, the investigation should have been able to bear this info out with some ease based upon the position of the truck, the scuff marks, and the impact on the trailer.
Passing on the right is both unsafe and usually unlawful (with a few exceptions). A cyclist must still adhere to the rules of the road governing safe speeds for conditions, and the safe speed for approaching a turning vehicle would be zero. A cyclist not in a bicycle lane with a solid line would not be able to legally pass a vehicle on the right unless said vehicle were clearly proceeding straight. Truthfully, I have not researched bicycle laws with regard to bike lanes and passing in quite some time, so I am operating off of memory.
I strongly suspect that what happened was the cyclist was headed down hill at a high rate of speed from around a bend that contributed to an inability to adequately observe and react to what he observed in front of him. Either he failed to heed a right hand turn signal from the truck, or, he was unable to change direction in time to avoid the turning truck, and he struck the trailer. Perhaps a combination of both.
If the driver was turning from the #1 or #2 lane (assuming that #2 was not the right hand turn lane ... again, apologies, my work network won't accept the cookies necessary to review the report again) and not the right hand turn lane, then things turn suspiciously towards the truck driver. But, after examining the assorted facts (measurements, vehicle impact, scuff marks, etc.) a clearer picture should be had. And there would also be the issue of whether or not the driver was signaling his turn. Witnesses could help with all of this. However, depending on the distances, even had he failed to signal it is quite possible that the fault would still have lied with the cyclist, though the failure to signal could be an associated factor that contributed to any delay in reacting.
I'm really shooting blind without the factual diagram or witness statements, so I am still just speculating here.