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Using PeMS Data to Empirically Diagnose Freeway Bottleneck ...

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-50500<br />

-51000<br />

-51500<br />

-52000<br />

-52500<br />

-53000<br />

-53500<br />

Station 70 – Loops 1-4 Oblique N and T<br />

N(70,t) - q 0 (70)t'<br />

-12600<br />

-12800<br />

-13000<br />

-13200<br />

-13400<br />

-13600<br />

-13800<br />

7:00<br />

8:00<br />

8:57:00<br />

9:00<br />

9:01:00<br />

Time, t<br />

-14000<br />

N(70,t) - q 0 t', q 0 = 9500 vph<br />

T(70,t) - b 0 t', b 0 = 2400 seconds per hour<br />

T(70,t) - b 0 (70)t'<br />

1863 9206<br />

1 2 3 4 5 6 7<br />

7:14:00<br />

2341<br />

6772<br />

3368<br />

8010<br />

6480<br />

9146<br />

8958<br />

1403<br />

8255<br />

2509<br />

4663<br />

2595<br />

10172<br />

2881<br />

8<br />

9 10 11<br />

7:33:00<br />

7:51:30<br />

8:16:30<br />

8:39:00<br />

8:49:00<br />

8:50:00<br />

3578<br />

2705<br />

3199<br />

8904<br />

8130 8880<br />

9367<br />

8629<br />

3271<br />

SEGMENT #<br />

NO QUEUE<br />

QUEUE<br />

7:41:30<br />

9762<br />

U<br />

Q<br />

Station<br />

140<br />

130<br />

120<br />

110<br />

100<br />

90<br />

80<br />

70<br />

60<br />

50<br />

40<br />

30<br />

20<br />

10<br />

Culver Dr.<br />

University Dr.<br />

Sand Canyon Ave.<br />

Travel Direction<br />

Hwy. 133<br />

Irvine Center Dr.

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