Μπορεί κάποιος να με βοηθήσει με αυτό το πρόβλημα?

[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!