Specifications Vol. II - Laserfiche WebLink

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, . ..., Apply traffic stripes and markings only to dry surfaces, and when the ambient air and surface temperature is at least 400F [50C] and rising. Do not apply traffic stripes and markings when winds are sufficient to cause spray dust. Apply traffic stripes and markings, having well defined edges, over existing pavement markings such that not more than 2 inches [50 mm] on either end and not more than 1 inch [25 mm] on either side is visible. Mix the paint thoroughly prior to pouring into the painting machine. Apply paint to the pavement by spray or other means approved by the Engineer. Conduct field testing in accordance with FM 5-541 and 5-579. Remove and replace traffic stripes and markings not meeting the requirements of this Section at no additional cost to the Department. Apply all pavement markings prior to opening the road to traffic. 710-4.1.1 Final Surface: Painted Pavement Markings (Final Surface) will include two applications of painted pavement markings and one application of retro- reflective pavement markers applied to the final surface. Apply all retro-reflective pavement markers meeting the requirements of Section 706. 710-4.2 Thickness: Apply paint to attain a minimum wet film thickness in accordance with the manufacturer's recommendations. 710-4.3 Retroreflectivity: Apply white and yellow pavement markings that will attain an initial retroreflectance of not less than 300 mcd/lx.m2 and not less than 250 mcd/lx'm2, respectively. Measure, record and certify on a Department approved form and submit to the Engineer, the retroreflectivity of white and yellow pavement markings in accordance with Florida Method FM 5-579. The Department reserves the right to test the markings within 3 days of receipt of the Contractor's certification. Failure to afford the Department opportunity to test the markings will result in non-payment. The test readings should be representative of the Contractor's striping performance. If the retroreflectivity values measure below values shown above, the striping will be reapplied at the Contractor's expense. For work zone markings, ensure that the minimum retroreflectance of white and yellow pavement markings are not less than 1 50 mcd/lx' m2. If the retroreflectivity values fall below the 150 mcd/lx'm2 value within six months of initial application, the striping will be reapplied at the Contractor's expense. 710-4.4 Color: Use paint material that meet the requirements of 971-1. 710-4.5 Glass Spheres: Apply glass spheres on all pavement markings immediately and uniformly following the paint application. The rate of application shall be based on the manufacturer's recommendation. . , . " . II . II . ,.., . ., . f"1 . -, . .., . ,.., . ..., . ,.., . 710-5 Tolerances in Dimensions and in Alignment. Establish tack points at appropriate intervals for use In aligning stripes, and set a stringline from such points to achieve accuracy. 710-5.1 Dimensions: 710-5.1.1 Longitudinal Lines: Apply painted skip line segments with no more than :!:: 12 inches [:!:: 300 mm] variance, so that over-tolerance and under-tolerance lengths between skip line and the gap will approximately balance. Apply longitudinal lines at least 2 inches [50 mm] from construction joints of portland cement concrete pavement. 710-5.1.2 Transverse Markings, Gore Markings, Arrows, and Messages: Apply paint in multiple passes when the marking cannot be completed in one pass, with an overall line width allowable tolerance of :!:: 1 inch [:!:: 25 mm]. . .., ...., . ..., . r-'1 . 09/09 01000-158 03-4122.F .., .