1. PASSER II SOFTWARE

2. PASSER II Progression Analysis and Signal System Evaluation Routine
Traffic Signal Optimization model
Texas Transportation Institute (TTI)
Widely used model for arterial routes
Component program of AAP
Arterial Analysis Package
Pre-Processor

3. AAP Provides easy access to PASSER II and TRANSYT 7F
Using one data input scheme

4. PASSER II
A macroscopic, deterministic optimization model designed to develop “maximal bandwidth” timing plans on an arterial highway
Objective function of maximizing bandwidth efficiency
Ensures good perceived progression timing plans

5. Bandwidth efficiency
Ratio of thru bandwidth (in both directions) divided by twice the cycle length

6. Inputs Traffic volumes, laneage Saturation flow rates
Minimum phase times
Permitted phase sequences
Analysis methods
To evaluate existing conditions
Enter offsets and splits
To optimize
No information is entered

7. Outputs Three basic types Input data report Design recommendations
Gives all input data in a structured format
Design recommendations
Including phase sequences, cycle length, offsets and splits
measures of effectiveness (MOE) values for
Bandwidth efficiency
Bandwidth ‘attainability’
Degree of saturation
Delay
Probability of queue clearance and fuel consumption
Time Space Diagrams

8. Using AAP
A STREET 4

9. Artery Setup

10. Help Options F1 for individual help options
F2 for extended information about the class of data
F3 for the functional key list

11. F1 Help option for Artery Stop Factor

12. F2 Help Option for Artery Setup

13. F3 Functional Key List

14. Artery Data
Speeds are automatically entered as the values input in Artery setup
They can be changed individually, if desired

15. Mode can be P- pretimed control F - actuated control
S- semi-actuated control
artery is assumed to be the non-actuated phase
I – no signal control

16. Length From adjacent upstream intersection to the current intersection
Forward Direction, Eastbound
Second Street
First Street
B Street
Third Street
A Street
1500’
1950’
1425’ 1 2 3 4
If the lengths in the reverse direction are the same as the forward, press F9 and the lengths will be automatically input

17. Artery Data Traffic Volume Lanegae Peak Hour Factor Saturation Flow
Right turns are assumed to be shared
Only enter the number of lanes under the the right turns if there is an exclusive right turn lane
Peak Hour Factor
Saturation Flow
Minimum Green Times
Speed

18. Traffic Volumes

19. Diagram of Network

21. Approach Data Press F9 to calculate the volume adjustments
Press escape to accept these values
Press ‘page down’ key to enter info for other intersections

25. Timing Plan

26. Timing Plan OR OR OR G L T E N W S

27. Timing Plan OR F OR R

28. LT Column Subsequence 1 leading lefts 2 leading thru’s
3 forward direction leading
reverse lagging
4 reverse direction leading, forward lagging
No. Meaning
0 phase combination not allowed
1 phase combination allowed, no overlap
2 phase combination allowed, with overlap

30. Example:

31. Run Instructions

32. Run PASSER II

33. View PASSER II Output
Then select your file name

34. Output Menu

35. Best Solution

36. A Street and First Street

38. Artery Summary

40. Time Space Diagram

41. Reading PASSER II Output
2 + 6
4 + 8
2 + 6
1 + 5
4 + 8
3 + 7

42. Reading PASSER II Output
Draw the phasing diagram assuming EB as the forward direction for:
2+6, 1+6, 1+5, 4+8, 3+8, 3+7
2 + 6
4 + 8
1 + 5
3 + 8
3 + 7
1+ 6

43. Example:

45. First Street and A street

46. A Street and B Street

47. Length From adjacent upstream intersection to the current intersection
Forward Direction, Eastbound
1320
1650
900
800
Main Street
1320’
1650’
900’
800’
A Street
B Street
C Street
D Street
E Street 1 2 3 4 5
If the lengths in the reverse direction are the same as the forward, press F9 and the lengths will be automatically input

48. Approach Data

49. Laneage Laneage at all intersections NB and SB
1 exclusive left turn lane
1 through and right turn lane
EB and WB
1 through lane

50. Phasing