Marine Gkl

Γειά σας, πρέπει να λύσω αυτό το πρόβλημα μέχρι την τρίτη για ένα μάθημα και έχω πελαγώσει. Μήπως μπορεί κάποιος να με βοηθήσει? Ευχαριστώ εκ των προτέρων! We consider a homogeneous freeway whose flow-density diagram is linear between the following break-points: k (veh/mile) q (vph) 0 0 100 5000 600 0 (a) At exactly 4:00 pm. and when the freeway is flowing steadily at q=4,000 vph, an incident that blocks ½ of the lanes occurs at mile x, (0 < x <1). Determine as a function of x, and according to LWR theory, the exact time at which the drop in flow will be sensed at two detectors located at miles 0 and 1. ( Derive an expression for the time t and location x of an incident that is known to have occurred in the road interval (0,1), given the times, U and D, at which a flow drop from Q is q is sensed at the upstream and downstream detectors. (This type of analysis can be used to diagnose detected incidents; detection is more efficiently achieved from occupancy data, however.) Είναι στα αγγλικά και είναι από τα προβλήματα του Daganzo. Daganzo problem sets (http://www.ce.berkeley.edu/~daganzo/problems.pdf) το 4.26 ευχαριστώ πολύ!