• Guarantee of defect free pavement• Throwing away the spec book• A way to get rid of DOT employees

• Guarantee of good performance• Incentive for quality construction• Incentive for innovation

• Current Specificationswritten to push the contractor towards “good performance”

• Warranty Specifications define what good performance is

• “Who has control of an item?”• Contractor?

Then contractor assumes risk of poorperformance.

• Agency?Then agency maintains risk of poor performance.

StructureQuantitiesTime Unit CostCondition Survey

MaterialsMix DesignProcess ControlRemediation Plans

• Liability• “Raises the bar”• Improves competition with pcc• Builder sets own specs• No approvals required

• People loss• Improves probability of good performance• Less confrontation

• Ride

• Rut Depth

• Friction

• Longitudinal Cracks

A - Unit PricesB - Time CostC - 5 Year Warranty

• Ride (IRI) 2.1 m/km

• Rut 9 mm

• Friction 35 / 25

• Longitudinal 0 m Level 2

0

0.5

1

1.5

2

Ave

rage

IRI,

m/k

m

1996 1997 1998 1999 2001

EBWB

05

101520253035404550

Ave

rage

Fri

ctio

nN

umbe

r

1997 1998 1999

NBSB

0

10

20

30

40

50

60

Ave

rage

Fri

ctio

nN

umbe

r

1996 1997 1998 1999 2001

EBWB

010203040506070

0.00 0.20 0.40 0.60Macrotexture Depth, mm

Fric

tion

Num

ber

0123456789

Ave

rage

Rut

Dep

th,m

m

1997 1998 1999

NBSB

0123456789

Ave

rage

Rut

Dep

th,m

m

1996 1997 1998 1999 2001

EBWB

• Success = Performance• Risk Balanced• Innovation Rewarded• Non-Confrontational Construction