404.1 404.1(a) FLEXIBLE PAVEMENTS
PAYMENT OF INCENTIVE
404.1DESCRIPTION —This work evaluates an asphalt pavement surface profile and determines the ride-
quality incentive associated with the pavement surface profile.
bridge approach slabs and overlaid bridge decks. At least two of the following construction operations must be indicated in areas included in ride -quality lot measurements:
• Profile milling as specified in Section 492.
• Asphalt Base course.
• Asphalt Scratch course.
• Asphalt Leveling course.
• Asphalt Binder course.
• Asphalt Wearing course.
In the presence of the Inspector , measure the pavement surface profile according to PTM No. 428. Provide daily calibration results to the Representative before taking any measurements. Provide the raw unfiltered data files and a summary printout of the resultant International Roughness Index (IRI) data and Mean R oughness Index (MRI) values to the Representative within 24 hours of taking measurements . The Representative will determine payment for each ride- quality lot based on the M RI. Measure the pavement surface of the following excluded areas separate from the pavement surface profile of ride- quality lots. The Representative will not include measurements from excluded areas to determine lot incentive payment ;
• Pavement surfaces not constructed as a full -depth overlay, as indicated, such as the vertical transition areas at the limits of paving and at the approaches to bridges.
• Bridge decks unless overlaid.
• Ramps less than 1,500 feet in length.
• Tapered pavements.
• Shoulders, medians, and other pavement sur faces indicated.
• Pavement from 5 feet before and up to 5 feet after any appurtenances such as water boxes, manholes, railroad tracks, and inlets extending out into the pavement.
• Partial lots less than 100 feet
• Roadways with a posted speed limit of 40 m iles per hour or lower.
404.1(b) 404.3(d) starting at the beginning limit of paving and continuing to the ending limit of paving for each pavement lane and ramp that is 12 feet or wider. Do not include the length of excluded areas in the 528 f eet. The Representative will designate a partial lot at the ending limit of paving and at an excluded area, when the lot length is less than 528 feet. The Representative will evaluate a partial lot as a percentage of a full lot.
404.3CONSTRUCTION —
verified by the Department according to PTM No. 428