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402.01 Pavement Smoothness The final pavement surface shall be evaluated for
smoothness using a Class I or Class II profiler as defined by A STM E950 (94). Smoothness measurements will be expressed in terms of the International Ro ughness Index (IRI) as defined by the World Bank, in units of inches/mile.
402.02 Lot Size Lot size for smoothness will be 3000 lane-feet . A sublot will consist of
50 lane-feet. Partial lots will be included in the previous lo t if less than one-half the size of a normal lot. If equal to or greater than one-half the normal l ot size, it will be tested as a separate lot.
402.03 Acceptance Testing The Department will conduct Acceptan ce testing following
completion of the surface course. Sections to be excluded from testing include the following: Bridge decks and joints (no smoothness measurements will be tak en within 100 ft of bridge joints) Acceleration and deceleration lanes Shoulders and ramps Side streets and roads Within 100 ft of transverse joints at the beginning and end of the project Within 100 ft of railroad crossings Urban areas with speed limits of 30 mph or lower Each lot shall have 2 measurements made in each wheel path. The average of the 4 measurements will determine the smoothness for that lot. The sm oothness measurements will be statistically evaluated for pay factors as described in Subsection 106.7 - Quality Level Analysis, using the specification limits shown below. TABLE 1: ACCEPTANCE LIMITS Level USL I 50 in/mile II 60 in/mile III 70 in/mile Computation of Smoothness Pay Adjustment: PA = (PF-1.0)(Q)(P) where: Q = Quantity of surface course i n the Lot (excluding shoulders, side streets, bridge decks, ramps, acceleration and deceleration lanes) PF = smoothness pay factor for the Lot P = Contract unit price for surface pavement PA = pay adjustment
402.04 Unacceptable Work In the event that any Lot is fo und to have a pay factor
less than 0.80, the Contractor shall take whatever remedial act ion is required to correct the 4-27 pavement surface in that Lot at no additional expense to the De partment. Such remedial action may include but is not limited to removal and replacemen t of the unacceptable pavement. In the event remedial action is necessary, the Contr actor shall submit a written plan to the Resident outlining the scope of the remedial work. The Resident must approve this plan before the remedial work can begin. Following remedi al work, the Lot shall be retested, and will be subject to the specification limits liste d above. The resulting pay factor, if within the acceptable range, will be used in the fin al pay adjustment. The Contractor shall pay the cost of retesting the pavement followi ng corrective action. Localized surface tolerance defects will be subject to the prov isions outlined in Section
401.11 Surface Tolerances.
Payment will be made under: Pay Item P a y U n i t
402.10 Incentive/Disincentive - Pavement Smoothness Lump Sum
SECTION 403 - HOT MIX ASPHALT PAVEMENT
403.01 Description This work shall consist of constructing one or more courses of Hot
Mix Asphalt pavement on an approved base in accordance with the se specifications, and in reasonably close conformity with the lines, grades, thickness a nd typical cross sections shown on the plans or established. The HMA pavement shall be co mposed of a mixture of aggregate, filler if required, and asphalt material.
403.02 General The materials and their use shall conform to th e requirements of Section
401 - Hot Mix Asphalt Pavement.
403.03 Construction The construction requirements shall be as specified in Section 401
- Hot Mix Asphalt Pavement.
403.04 Method of Measurement Hot mix asphalt pavement will be measured as
specified in Section 401.21- Method of Measurement.
403.05 Basis of Payment The accepted quantities of hot mix asp halt pavement will be
paid for at the contract unit price per ton for the mixtures, i ncluding hot mix asphalt material complete in place. Method A, Method B, Method C and Method D sh all be used for acceptance as specified in Section 401 - Hot Mix Asphalt Paveme nts. (See Complementary Notes, Section 403 - Hot Mix Asphalt Pavement, for Method locat ion). Payment will be made under: Pay Item Pay Unit 403.102 Hot Mix Asphalt Pavement for Special Areas Ton