A: q $=2700$ vph$,$ u $=55$ mi$/$h B: one$-$lane open with q $=1500$vph$,$ u $=4\mathrm{.}5$ mi$/$h B: two$-$lane open with q $=3600$vph$,$ u $=40$ mi$/$h kjam $=480$ veh$/$mi Questions: $1.$ Where is the end of queue at $10$:$15$ am$?2.$ When will the queue stop increasing? $3.$ How long is the max queue length? $4.$ When will the accident impact reach point A$?5.$ By what time must the second lane be cleared to avoid the impact from the accident extending to A$?$