Pavement Management & Decision Making

Omar Smadi

Decision Making (what?)

• Importance of Data:

– Inventory

– Assessment of condition

• Proper DST

• Needs

Garbage IN Garbage OUT

Assets we Maintain

Data Collection Process

• Objective

• Repeatable

• Added features (one pass)

• Safety considerations (automated data collection)

Good or Bad?

Good or Bad?

Good or Bad?

Good or Bad?

Good or Bad?

Data Collection

Decision Support Tools

• Management systems:

– Pavement Management

– Bridge Management

– Maintenance Management

– Sign Management

– Pavement Marking Management

– SAFETY

Physical Assets

Operational Assets

Decision Support Tools

• Components:

– Models:

• Prioritization

• Economic analysis

• Optimization

– Data:

• Existing conditions

• Forecasted condition

• Financial (budget, interest and inflation rates)

MYP vs. KBES_DP

79

80

81

82

83

84

Year

PCI MYP

KBES_DP

MYP 83.17 82.36 81.03 81.63 80.8

KBES_DP 81.78 81.67 80.5 82.02 83.18

2002 2003 2004 2005 2006

Decision Support Tools

• Functions:

– Project Selection

– Resource Allocation

– Develop Funding Needs

– Package Funding Requests

Project Level

Network Level

Internal Communication

Internal and ExternalCommunication

Reactive vs. Proactive

• Fix the worst first

• Mix of fixes

• Asset Management

$$$$$

$$$$$

$$

Overlay

Age

Pa

vem

ent

Con

dit

ion

In

dex

Pavement performance curve

40% Time

70% Time

90% Time

$ 0.85

$ 4.25

$ 7.50

$16.75

Fix the Worst First!

0

100

200

300

400

500

600

700

0 1 2 3 4 5 6 7 8 9 10

YEAR

MIL

ES exc/good

fair

poor

Worst First

0

100

200

300

400

500

600

700

800

900

0 1 2 3 4 5 6 7 8 9 10

YEAR

MIL

ES exc/good

fair

poor

Best First

Average PCI Comparison(Before PMS)

Average Network Condition Comparison 1992-1996

76.77 76.85

76.42 76.51 76.43

76.88

75.11

73.76

72.09

73.79

70

71

72

73

74

75

76

77

78

79

80

Year

Av

era

ge

PC

I

PCI (PMS) 76.77 76.85 76.42 76.51 76.43

PCI (DOT) 76.88 75.11 73.76 72.09 73.79

1992 1993 1994 1995 1996

Results (Before PMS)

• DOT Average PCI = 73.79

• PMS Average PCI = 76.43

• Total Budget = $175 Millions over 5 years2.64

Results (Before PMS)

• The Level of Investment For the PMS to Achieve an Average PCI of 73.79:

• $162.5 Millions

• $12.5 Millions difference over 5 years

• $5 million for each PCI point

Average PCI Comparison(After PMS)

Average Network Condition Comparison 1999-2003

74.55

76.69

74.72

73.89

73.08

73.56

72.66

71.39

71.9571.63

70

71

72

73

74

75

76

77

78

79

80

Year

Av

era

ge

PC

I

PCI (PMS) 74.55 76.69 74.72 73.89 73.08

PCI (DOT) 73.56 72.66 71.39 71.95 71.63

1999 2000 2001 2002 2003

Results (After PMS)

• DOT Average PCI = 71.63

• PMS Average PCI = 73.08

• $7.5 millions difference based on the previous analysis

1.45

Results

� After PMS:

� 1.45 PCI points difference

� Equates to $7.5 millions difference in investment

_

Benefits = $5 millions over 5 yrs

� Before PMS:

� 2.64 PCI point difference

� Equates to $12.5 millions difference in investment