Marine Gkl Δημοσιεύτηκε January 15, 2012 at 12:19 μμ Δημοσιεύτηκε January 15, 2012 at 12:19 μμ 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!
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