Originally Posted by
GeeRam
I would say its more likely that it might not have reduced the number of casualties, as they were all from the cars stationary at the red lights on the westbound carriageway, and thus the traffic on the eastbound carrieageway were also being held on the red, further to the west of the impact point, and thus the eastbound carriageway was free of traffic when the impact occured.
Had the lights been set to full time green, it would have thus been for both carriageways and thus there would have been flowing traffic on both carriageways, which might have meant less, or possibly even more with traffic flow in both directions. As such its an unknown variable, so can't be taken as a factor.
Well yes, but also that the lights could not all be set to green for the very reason lights were needed there in the first place.