Signal Optimization and Analysis Using PASSER V-07 Training - - PowerPoint PPT Presentation

▶
signal optimization and analysis using passer v 07
SMART_READER_LITE
LIVE PREVIEW

Signal Optimization and Analysis Using PASSER V-07 Training - - PowerPoint PPT Presentation

Jun 08, 2023 106 likes •1.13k views

Signal Optimization and Analysis Using PASSER V-07 Training Workshop: Code IPR006 Nadeem Chaudhary (n-chaudhary@tamu.edu) Chi-Leung Chu (clchu@tamu.edu) Steve Venglar (s-venglar@tamu.edu) TxDOT Implementation Project 5-5424-01 Product

slide-1
SLIDE 1

Transportation Operations Group

1

Signal Optimization and Analysis Using PASSER V-07

Training Workshop: Code IPR006

Nadeem Chaudhary (n-chaudhary@tamu.edu) Chi-Leung Chu (clchu@tamu.edu) Steve Venglar (s-venglar@tamu.edu)

TxDOT Implementation Project 5-5424-01 Product 5-5424-01-P1

slide-2
SLIDE 2

Transportation Operations Group

2

Session 0: Preliminaries

  • Self Introductions
  • Workshop Objectives
  • Workshop Outline
slide-3
SLIDE 3

Transportation Operations Group

3

S0−Workshop Objectives

  • Learn Use of PASSER V for Analysis

and Optimization of Traffic Signals:

Isolated TWSC Intersections Isolated Signals Arterials and Sub-arterials Isolated Diamond Interchanges Diamonds + Adjacent Signals

slide-4
SLIDE 4

Transportation Operations Group

4

S0−Workshop Outline

  • S1: Introduction to PASSER V

Features Basic Operations

  • S2: Isolated TWSC Intersections

Review of Theory Exercise

  • S3: Isolated Signals

Review of Theory Exercise

slide-5
SLIDE 5

Transportation Operations Group

5

S0−Workshop Outline (continued)

  • S4: Signal Systems

Review of Theory

  • S5: Arterial Analysis

Analyze Simple Arterials Review Additional Features

  • S6: Diamond Interchange Analysis

Additional Discussion Exercise

slide-6
SLIDE 6

Transportation Operations Group

6

S0−Workshop Outline (continued)

  • S7: Diamond and Adjacent Signals

Coordinating Diamond with Adjacent Signals

  • S8: Workshop Conclusion

Question/Answer Session Workshop Survey

slide-7
SLIDE 7

Transportation Operations Group

7

Session 1: Introduction to PASSER V

  • Background
  • Features
  • Input Data Requirements
  • User Interface
slide-8
SLIDE 8

Transportation Operations Group

8

S1−PASSER V Background

  • Funded by TxDOT and TTI
  • Applications

Isolated Signals (Building Blocks) Isolated TWSC Intersections Signalized Arterials Isolated Diamond Interchanges Diamond + Adjacent Signals

slide-9
SLIDE 9

Transportation Operations Group

9

S1−PASSER V Features

  • Graphic User Interface

Multiple Document Architecture

  • Mesoscopic Delay/Traffic Model
  • Can Coordinate Signals to Provide

Maximum Progression Minimum Delay

  • Graphic Time-Space Diagram
slide-10
SLIDE 10

Transportation Operations Group

10

S1−Using PASSER V

  • Draw the Facility
  • Select Intersection or Link
  • Enter Corresponding Data
  • View Signal MOEs
  • Analyze/Optimize Signal Systems

Select and Run Tool View/Print Results

slide-11
SLIDE 11

Transportation Operations Group

11

S1−Tools in PASSER V

  • PASSER II Optimizer
  • PASSER III Optimizer
  • GA-Based Optimizer
  • Time-Space Diagram Generator
  • Volume Analysis
  • Delay Analysis
slide-12
SLIDE 12

Transportation Operations Group

12

S1−PASSER V Limitations

  • Coordination Requires Same Cycle

Length at All Signals

No Double-Cycling or Conditional Service

  • Cannot Handle Following Cases

One-Step Network Optimization All-way Stop-controlled Intersections

slide-13
SLIDE 13

Transportation Operations Group

13

Session 2: Isolated TWSC Intersections

  • Input Data Needs
  • Overview of Theory
  • Isolated Intersection Exercise
slide-14
SLIDE 14

Transportation Operations Group

S2−PASSER V Data Needs

  • Turning Movement Counts (TMC)

Collect 15-Minute Data and Calculate PHF AM, PM, and Off-Peak Collect Vehicle Mix Information

  • Intersection Configurations

Number of Lanes, Lane Use, Lane Widths, Turn Bays and Lengths, Median Type, etc.

  • Can Apply Growth Rates to Older Counts

as Long as Traffic Patterns Haven’t Changed

14

slide-15
SLIDE 15

Transportation Operations Group

15

S2−Exercise

slide-16
SLIDE 16

Transportation Operations Group

S2−Exercise

16

N

  • S. Presa

S.W. Military

AM PM L 113 113 T 85 80 R 45 49 Truck% 8 1 AM PM L 88 149 T 397 676 R 86 147 Truck% 3 1 AM PM L 13 19 T 52 68 R 74 150 Truck% 2 1 AM PM L 24 44 T 386 635 R 16 21 Truck% 3 1

13' 13' 13' 14' 13' 12' 11' Bay is 153' long Bay is 148' long Bay is 126' long Bay is 91' long 11' 11'14' 10' 12' 12' 11'

PM 19 68 150 1 PM 44 635 21 1 PM 113 80 49 1 PM 149 676 147 1

(User Guide, p. 91)

slide-17
SLIDE 17

Transportation Operations Group

17

S2−Gap Acceptance

  • Movement

Ranks

  • Process

Observe Headways Accept Gap

slide-18
SLIDE 18

Transportation Operations Group

18

S2−Channelized Rights

Or

slide-19
SLIDE 19

Transportation Operations Group

19

S2−Two-Stage Process

1 2 Enter Storage Capacity

slide-20
SLIDE 20

Transportation Operations Group

20

S2−Two-Stage Process (continued)

1 2 Enter Storage Capacity

slide-21
SLIDE 21

Transportation Operations Group

21

S2−Flared Approaches

Specify How Many

slide-22
SLIDE 22

Transportation Operations Group

22

S2−Model Parameters

  • Critical Headway
  • Follow-up Time
slide-23
SLIDE 23

Transportation Operations Group

23

Session 3: Isolated Signals

  • Overview of Theory
  • PASSER V Input Data Needs
  • Input Data Considerations
  • Signal Exercise
slide-24
SLIDE 24

Transportation Operations Group

24

S3−PASSER V Data Needs

  • Turning Movement Counts (TMC)

Collect 15-Minute Data and Calculate PHF AM, PM, and Off-Peak Collect Vehicle Mix Information

  • Can Apply Growth Rates to Older

Counts as Long as Traffic Patterns Haven’t Changed

slide-25
SLIDE 25

Transportation Operations Group

25

S3−PASSER V Data Needs

(continued)

  • Number of Lanes
  • Lane Use
  • Lane Widths
  • Turn Bays and Lengths
slide-26
SLIDE 26

Transportation Operations Group

26

S3−Input Considerations

  • Left-turn Treatment

Number of Opposing Lanes Overlapping Turning Paths (may need to split phase) Type of Signal Heads (3, 4, or 5 Section)

  • Pretimed, Semi-actuated, or Fully

Actuated

  • Priority or Preemption
slide-27
SLIDE 27

Transportation Operations Group

27

S3−Performance Data

  • Delay, Stops, Queue Information

for Existing Conditions

  • Collection Can Be Costly
slide-28
SLIDE 28

Transportation Operations Group

28

S3−NEMA Phase Numbering

slide-29
SLIDE 29

Transportation Operations Group

29

S3−Cycle Length vs. Delay and Capacity

Cycle Length Delay/Capacity

Critical Cycle Length, Cc Minimum-Delay Cycle Length, Cm Capacity Delay

slide-30
SLIDE 30

Transportation Operations Group

30

S3−Cycle Length vs. Delay and Stops

Queue Queue

slide-31
SLIDE 31

Transportation Operations Group

31

S3−Cycle Length vs. Delay

Delay Comparison Queue Queue

slide-32
SLIDE 32

Transportation Operations Group

32

S3−Timing Isolated Signals

  • Select Best Timings

Cycle Splits (or max, min, gap setting) Clearance Intervals

  • To Provide

Safe Efficient Operation

slide-33
SLIDE 33

Transportation Operations Group

33

S3−Safety Issues

  • Space Conflicts inside Intersection

Use of Split Phasing

  • Minimum Greens

Based on Driver Expectancy

  • Vehicle Clearance Intervals
  • Pedestrian Requirements
  • Yellow Trap
slide-34
SLIDE 34

Transportation Operations Group

34

S3−Clearance Intervals

  • Proper Settings Avoid a

“Dilemma Zone”

25 35 45 55 65 2.84 3.57 4.31 5.04 5.78 2.18 1.55 1.21 0.99 0.84 Speed mph Yellow Change sec (level grade) Red Clearance sec (60' wide crossing)

slide-35
SLIDE 35

Transportation Operations Group

35

Gp = (4 to 7 seconds) + Distance W

“WALK” Flashing “DON’T WALK” 4 to 7 Distance / W Minimum Pedestrian Time Pedestrians

  • Min. Green

Yellow + All Red Vehicles Minimum Vehicle Time Signal Timing (Minimum Pedestrian Time Controls) “WALK” Flashing “DON’T WALK” Vehicular Green Clearance Yellow + All Red Clearance Yellow + All Red Clearance Location of yellow + all red depends on policy as to allowing pedestrian flashing “DON’T WALK” to occur simultaneously with vehicular clearance.

S3−Pedestrians

slide-36
SLIDE 36

Transportation Operations Group

36

S3−Best Isolated Operation

  • What is Good Operation?

Minimum Delay Shortest Queues per Cycle Minimum Stops Compromised Combination

  • User Decides Based on Situation

Approach Speeds Traffic Counts Driver Perception

slide-37
SLIDE 37

Transportation Operations Group

37

S3−Isolated Signal Exercise

  • Draw an Isolated Signal
  • Enter Data
  • Analyze
slide-38
SLIDE 38

Transportation Operations Group

38

S3−Intersection Data

N

  • S. Presa

S.W. Military

AM PM L 113 113 T 85 80 R 45 49 Truck% 8 1 AM PM L 88 149 T 397 676 R 86 147 Truck% 3 1 AM PM L 13 19 T 52 68 R 74 150 Truck% 2 1 AM PM L 24 44 T 386 635 R 16 21 Truck% 3 1

13' 13' 13' 14' 13' 12' 11' Bay is 153' long Bay is 148' long Bay is 126' long Bay is 91' long 11' 11'14' 10' 12' 12' 11'

S.W. Military at S. Presa, San Antonio, Texas

PM 19 68 150 1 PM 44 635 21 1 PM 113 80 49 1 PM 149 676 147 1

(User Guide, p. 91)

slide-39
SLIDE 39

Transportation Operations Group

39

S3−Data Entry

  • Draw Links
  • Define Lanes
  • Enter PM-peak Volumes

i.e., 149, 676, and 147 for EB

  • Select Movement Type

EB and WB Prot (why?) NB and SB Prot/Perm

slide-40
SLIDE 40

Transportation Operations Group

40

S3−Data Entry (continued)

  • Adjust Right-turn Volumes for

RTOR

  • Overlap (Yes for Lefts)
  • Min Splits

Peds if No Buttons (Assumed)

» NB: 7+ (12+11+12+13+12+11+14)/4 = 28.25 ≈ 29 sec.

EB, WB, NB, SB: 23, 23, 29, 29 Clearance Times

slide-41
SLIDE 41

Transportation Operations Group

41

S3−Data Entry (continued)

  • Adjustments to Flows
  • Trucks
  • Ideal Saturation Flow
  • Click Update Button
slide-42
SLIDE 42

Transportation Operations Group

42

S3−Analysis/Results

  • Delay vs. Cycle Analysis
  • Controller: Ring-Barrier Display
  • MOEs
slide-43
SLIDE 43

Transportation Operations Group

43

Session 4: Signal Systems

  • Overview:

Engineering Theory Analysis Tools

slide-44
SLIDE 44

Transportation Operations Group

44

S4−Flow Stability between Adjacent Systems

Cycle Length Delay

  • Min. Acceptable

System Cycle Length

Signal 3: Highest v/c Ratio Signal 2: Medium v/c Ratio Signal 1: Lowest v/c Ratio

slide-45
SLIDE 45

Transportation Operations Group

45

S4−Signal Offset and Flow between Adjacent Signals

Offset

slide-46
SLIDE 46

Transportation Operations Group

46

S4−Flow vs. Bands

Offset

slide-47
SLIDE 47

Transportation Operations Group

47

S4−Effects of Changes in Offset

Offset +

slide-48
SLIDE 48

Transportation Operations Group

48

S4−Cannot Get Two-way Bands? Change Phasing!

Offset -

slide-49
SLIDE 49

Transportation Operations Group

49

S4−Changing Phasing Can Improve 2-way Progression

Offset -

slide-50
SLIDE 50

Transportation Operations Group

50

G G G G G G Y Y R R R R R R R R R R R R G G G G G G Y Y

S4−Yellow Trap

slide-51
SLIDE 51

Transportation Operations Group

51

S4−Yellow Trap (continued)

G G G G Y Y R R R R G G G G G G Y Y R R R R G G G G G G

slide-52
SLIDE 52

Transportation Operations Group

52

S4−Yellow Trap (continued)

Arlington Phasing

G G G G Y Y R R R R G G G G Y Y R R R R G G G G G G R R

slide-53
SLIDE 53

Transportation Operations Group

53

S4−Timing Adjacent Signals

  • Objectives of Coordination

Provide/Maintain Safety Maintain Stable Flow Minimize Systemwide Delay Minimize Queues and Spillback Maximize System Throughput Minimize Number of Stops Maximize Arterial Progression

slide-54
SLIDE 54

Transportation Operations Group

54

S4−Types of Models

  • Traffic Simulation Model

Evaluates a Specified Scenario Generates Performance Measures

  • Optimization Model

Systematically Generates Scenarios Evaluates Using Simulation Selects the Best Scenario Usually Applicable to Traffic Signals

slide-55
SLIDE 55

Transportation Operations Group

55

S4−Simulation Models

  • Microscopic

Keeps Track of Each Vehicle Time Consuming

  • Mesoscopic

Analyzes Flow Profiles Faster Calculations

  • Macroscopic

Analyzes Platoons Fastest Calculations

slide-56
SLIDE 56

Transportation Operations Group

56

S4−Simulation Models (continued)

  • Microscopic

Keeps Track of Each Vehicle Time Consuming

  • Mesoscopic

Analyzes Flow Profiles Faster Calculations

  • Macroscopic

Analyzes Platoons Fastest Calculations

  • Stochastic
  • Deterministic
slide-57
SLIDE 57

Transportation Operations Group

57

S4−Simulation Accuracy

  • Realistic Queues

Microscopic: CORSIM, Vissim, SimTraffic Mesoscopic: new T7F, PASSER V, Synchro

  • Upward Queue Stack

Mesoscopic: old T7F, S5 and P3 Macroscopic: P2, P4

slide-58
SLIDE 58

Transportation Operations Group

58

S4−Spillback & Starvation

slide-59
SLIDE 59

Transportation Operations Group

59

S4−Blocking and Starvation

R G G

slide-60
SLIDE 60

Transportation Operations Group

60

S4−Blocking and Starvation

(continued)

R R

slide-61
SLIDE 61

Transportation Operations Group

61

S4−Starvation May Not Be Bad (Unused Capacity)

G G

slide-62
SLIDE 62

Transportation Operations Group

62

S4−Optimization Criteria

  • Maximize Arterial Progression
  • Minimize Systemwide Delay
  • Minimize Stops
  • Minimize Queues
  • Maximize Throughput
  • Minimize Blocking and Spillback
slide-63
SLIDE 63

Transportation Operations Group

63

S4−Magnitude of Problem

  • 1. 100 Plans
  • 2. Depends
  • 200, or
  • 10,000 Plans
  • 3. 200 X 64 =

12,800 Plans

Fixed Cycle=100 Sec

1: 3: 2a with Phase Optimization 2:

2-Phase Signals

slide-64
SLIDE 64

Transportation Operations Group

64

S4−Optimization Methods

  • Exhaustive Search
  • Smart Search Techniques

Hill-climbing Heuristic Mathematical Programming Genetic Algorithms

  • Most Signal-Timing Programs Use

a Combination

slide-65
SLIDE 65

Transportation Operations Group

65

S4−Optimization Tool Types

  • Delay-Based

Minimizes Delay (+Qs and Stops) Evaluates/Simulates Each Plan Examples:

» TRANSYT 7F: Exhaustive, Hill-climbing, GA » Synchro: Exhaustive + Heuristic Search » PASSER III: Exhaustive Search » PASSER V: Exhaustive, GA

slide-66
SLIDE 66

Transportation Operations Group

66

S4−Optimization Tool Types

(continued)

  • Bandwidth-Based

Maximizes Arterial Progression

» Simple Objective Function

Simulates Traffic after Optimization Examples:

» PASSER II: Exhaustive and Heuristic » PASSER IV: Mathematical Programming » PASSER V: Exhaustive, Heuristic, GA

slide-67
SLIDE 67

Transportation Operations Group

67

S4−PASSER V Data Needs

  • Signal Spacing
  • Link Speeds
  • Types of Link

Intersection 1 Intersection 2 Stop bar Stop bar

Intersection Spacing (in feet)

slide-68
SLIDE 68

Transportation Operations Group

68

S4−Input Performance Data

  • Speed, Travel Time, or Delay

Information for Existing Conditions

  • May Need to Measure Speed for

Use in PASSER V

  • Can Be Used to Calibrate or

Validate Your Base Model

  • Collection Can Be Costly
slide-69
SLIDE 69

Transportation Operations Group

69

Session 5: Arterial Analysis

  • Arterial Exercise 1

Load and Review Data Apply Various Tools Review/Interpret Output

  • Arterial Exercises 2 and 3

TWSC Intersections Sub-nets Phasing Options Bandwidth-constrained Delay Minimization Adjusting Bands

slide-70
SLIDE 70

Transportation Operations Group

70

S5−Arterial Exercise 1

N

SW Military

AM PM L 63 122 T 231 159 R 78 104 % 2 2

* Assume all lanes at Somerset are 12' wide

3425'

AM PM L 14 43 T 381 705 R 71 73 % 3 2 AM PM L 79 77 T 145 161 R 128 204 % 4 2 AM PM L 246 115 T 610 762 R 18 15 % 2 2 AM PM L 12 19 T 184 128 R 46 80 % 3 4 AM PM L 31 51 T 551 768 R 91 77 % 3 1 AM PM L 9 35 T 179 209 R 27 38 % 4 2 AM PM L 56 101 T 329 615 R 14 10 % 3

New Laredo Highway Somerset

11' 12' 12' 12'

14' 11' 11' 13'

12' 17'11'

16' 14' 12' 11' Bay is 168' long Bay is 140' long Bay is 161' long Bay is 145' long

S.W. Military Drive, San Antonio, Texas

(User Guide, p. 130)

slide-71
SLIDE 71

Transportation Operations Group

S5−Performance Measures

71

100 2 × × = C Total Band Efficiency ) ( ) ( B Band A Band Total Band + =

Cycle Length, C Bandwidth

  • n A-direction,

Band(A) Bandwidth on B-direction, Band(B) Shortest green time among all the signals

  • n A-direction, Gmin(A)

Shortest green time among all the signals

  • n B-direction, Gmin(B)

100 ) ( ) (

min min

× + = B G A G Total Band ity Attainabil

slide-72
SLIDE 72

Transportation Operations Group

72

S5−NTCIP Coord Phase

slide-73
SLIDE 73

Transportation Operations Group

73

S5−NTCIP Coord Phase

(continued)

Coordinate Phase: 2

φ 2 φ 1 φ 6 φ 5 φ 2 φ 1 φ 6 φ 5 φ 2 φ 1 φ 6 φ 5

Offset Reference Phase

φ 2 φ 1 φ 5 φ 6

slide-74
SLIDE 74

Transportation Operations Group

74

S5−Offset Adjustments

  • Lead-Lead

Example

  • Lag-Lead

Example

Phase 2 Offset 10 Sec 8 Phase 2 Offset 10 Sec 6 10

slide-75
SLIDE 75

Transportation Operations Group

75

S5−Programming Sequences

slide-76
SLIDE 76

Transportation Operations Group

76

S5−Programming Sequences

(continued)

slide-77
SLIDE 77

Transportation Operations Group

77

S5−Example Phase Sequences

Sequence Name Ring Phase Order Sequence # Eagle/Naztec Lead-Lead 1 1 2 3 4 0/1 2 5 6 7 8 Lag-Lead 1 1 2 3 4 1/2 2 6 5 7 8 Lead-Lag 1 2 1 3 4 2/3 2 5 6 7 8 Lag-Lag 1 2 1 3 4 3/4 2 6 5 7 8

slide-78
SLIDE 78

Transportation Operations Group

78

S5−How Genetic Algorithm (GA) Works

  • Randomly Generate Population
  • Perform Reproduction Operation

Select Pairs/Parents and Generate Offspring

  • Evaluate Each Using Simulation

Note Population Has Doubled

Parents Offspring

slide-79
SLIDE 79

Transportation Operations Group

79

S5−How GA Works (continued)

  • Keep Best Half of New Population
  • Perform Mutation Operation

Parents Offspring

Next Generation

slide-80
SLIDE 80

Transportation Operations Group

80

S5−How GA Works (continued)

  • Stop If

No Improvement Possible or Maximum Generations Reached Report the Best Plan

  • Else

Repeat Process

slide-81
SLIDE 81

Transportation Operations Group

81

S5−Arterial Exercise 2

slide-82
SLIDE 82

Transportation Operations Group

82

S5−More Theory

  • Handling of TWSC Intersections on

Arterial

Upstream Signals

» Platoon Dispersion

Handling in Various Tools

» PASSER II » Other Tools (Except P3)

slide-83
SLIDE 83

Transportation Operations Group

83

S5−Arterial Exercise 3

SH 71, Bastrop, Texas

slide-84
SLIDE 84

Transportation Operations Group

84

10 20 30 40 50 60 70 80 90 60 70 80 90 100 110 120 Cycle Length Bandwidth 25 30 35 40 45 50 Efficiency Total Band (sec) Total Efficiency (%)

S5−Bandwidth vs. Efficiency

slide-85
SLIDE 85

Transportation Operations Group

85

20 30 40 50 60 70 80 90 100 55 65 75 85 95 105 115 125 Total Band (sec) Total Efficiency (%) Total Attainability (%)

  • Avg. Delay (sec/veh)

S5−Delay and Attainability

slide-86
SLIDE 86

Transportation Operations Group

86

20 30 40 50 60 70 80 90 100 45 55 65 75 85 95 105 115 125 135 145 155 165 175 185 Total Band (sec) Total Efficiency (%) Total Attainability (%)

  • Avg. Delay (sec/veh)

S5−Tradeoffs in Performance

slide-87
SLIDE 87

Transportation Operations Group

87

Session 6: Diamond Interchange Analysis

  • Background and Operational Issues
  • Diamond Exercise

Create Interchange Apply Optimization Tools and View Output

» PASSER III » GA-Based Optimizer

  • Apply Other Tools

Volume Analysis Time-Space Diagram Delay Analysis

slide-88
SLIDE 88

Transportation Operations Group

88

S6−Background on Diamonds

  • Two Closely Spaced Intersections
  • Flow Characteristics Very Different

from Arterials

Significant Turning Traffic

  • Types

Conventional (More than 800 ft) Compressed (400-800 ft) Tight (Less than 400 ft)

slide-89
SLIDE 89

Transportation Operations Group

89

S6−Background on Diamonds

(continued)

  • Often Experience Operational

Problems

  • Capacity Dependent on

Splits at Both Intersections Queuing and Spillback

  • TxDOT/Texas Diamond Controller

Basic Three-Phase TTI Four-Phase Separate Intersection Mode

slide-90
SLIDE 90

Transportation Operations Group

90

S6−NEMA Phase Numbering

φ2 Overlap A (φ1 + φ2) φ5 φ1 φ8 φ6 φ4 φ3 φ7 φX - NEMA Phase Left Side Frontage/Ramp Right Side Frontage/Ramp Crossing Arterial Overlap B (φ5 +φ6)

slide-91
SLIDE 91

Transportation Operations Group

91

S6−Three-Phase Operation

Lag-Lag

slide-92
SLIDE 92

Transportation Operations Group

92

S6−Four-Phase Operation

  • Lead-Lead

Phasing

  • Phase Times

and Offset Calculated Simultaneously

  • Needs Longer

Cycle

slide-93
SLIDE 93

Transportation Operations Group

93

S6−Other Options

  • Separate Intersection Control

under Diamond Mode

Restricted to Lead-Lead Phasing Can Provide Ring-lag/Offset

  • User Programmed Mode

Difficult Programming Flexibility of Operation

  • Use Two Controllers
slide-94
SLIDE 94

Transportation Operations Group

94

S6−Phasing Selection Guidelines

  • Conventional Diamonds

Three-Phase Four-Phase Not Recommended

  • Compressed Diamonds

Three-Phase with Short Cycle Four-Phase

  • Tight Diamonds

Four-Phase Three-Phase for Light Traffic

slide-95
SLIDE 95

Transportation Operations Group

95

S6−Diamond Exercise

Protected + 720 ft Harvey Rd. SH 6 (East Bypass)

  • Speed = 40 mph
  • Bay Length = 300 ft
  • All lanes 12 ft

Permitted Protected Only

N

(User Guide, p. 119)

slide-96
SLIDE 96

Transportation Operations Group

96

S6−Data Entry/Analysis

  • Draw Links/Define Interchange
  • Load Data
  • Select Tool and Analyze
  • Review Results
slide-97
SLIDE 97

Transportation Operations Group

97

S6−More Tools in PASSER V

  • Volume Analysis
  • Time-Space Diagram
  • Delay Analysis
slide-98
SLIDE 98

Transportation Operations Group

98

Session 7: Diamond and Adjacent Signals

  • Exercise Using Existing Data
  • Apply Various Tools
  • Review Output
slide-99
SLIDE 99

Transportation Operations Group

99

S7−SH 195 Data

Interchange

slide-100
SLIDE 100

Transportation Operations Group

100

Session 8: Workshop Conclusion

  • Additional Topics and QA Session

Any Features Not Covered Networks

  • Survey

Tell Us How We Did Feedback about PASSER V