14 Analysis of Signalized Intersections (Traffic Engineering هندسة المرور & Prof. Saad AlGadhi)

1. CE 436 Traffic Engineering
Topic 14: Analysis of Signalized
Intersections (Ch. 24)
Prof. Saad AlGadhi
CE 436 –Traffic Engineering
King Saud University
email: salgadhi@ksu.edu.sa

4. Saturation Flow Rates

6. Lane Group Degree of
Saturation (X=v/c)

7. Intersection Degree of
Saturation (Xc)

8. Intersection Degree of
Saturation (Xc)

10. Uniform Delay (d1)

11. Incremental Delay (d2)
×
(=0.5 for pretimed)
(=1 for isolated intersection)

12. Initial Queue Delay (d3)

14. Aggregating Delay

15. Table 24.1 Level of Service Criteria for Signalized Intersections

16. Analysis Results Interpretation
Scenario 1

17. Analysis Results Interpretation
Scenario 2

18. Analysis Results Interpretation
Scenario 3

23. Read Sample Problem (p.598)

24. H.W. # 10- Part 2
Ch. 24 (p. 615 )
1. P.24-1 (But assume NO pedestrian
movements)
2. P.24-2

25. H.W. # 10-Part 1 (Reminder)
Ch. 21 (p. 522)
1. 21-1
2. 21-2
3. 21-3