Consider the following diagram of one-way roads, with indicated traffic flow on some roads. Compute the values of 1. 2. 3. 4. 5. 6. 100 cars/h X2 A 80 cars/h X1 E 50 cars/h X6 ts -→- B D 120 cars/h 40 cars/h - 140 cars/h Answer the following questions. Keep in mind that traffic flow on each road has to be greater or equal to 0. a) What is the maximal possible traffic flow on the road connecting intersections E and A? Enter your answer to part a) here: b) Suppose that the road connecting intersections E and A gets closed. Assuming that all measurements of traffic flow indicated on the picture above stay unchanged, what is the minimal possible traffic flow on the road connecting intersections D and C in such case? Enter your answer to part b) here:

SHOW A FULL SOLUTIONAfter mall opening, the traffic volume (demand) in a certain road section (6-lane divided highway) at the peak hour is forecasted to be 5200vph. An accident blocks 1 lane of the highway. It took 15 minutes till the accident is cleared and capacity is fully restored. Use the following speeddensity relationship: u=112.81-1.75k (u is speed in kph and k is density in vpk/lane) to answer the following questions:a.) Determine the free-flowing speedb.) Compute for the shockwave between the free-flow state and the state where there is capacity reduction due to accident.c.) Compute for the shockwave between state when there is capacity reduction due to accident and the state where vehicles flow with full section capacity