Originally Posted by
melmothtw
Surely the lights could not have been set to green for everyone. If not the cars that were hit, then other cars would have been queing in the immediate vicinity of the crash. Guessing this is why this hasn't been developed as a theme.
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.