Florida Department of Transportation Projects Transition: RN to IRI Warranty
Explore data from the Florida Department of Transportation on the transition from RN to IRI warranty projects, including information on RN and IRI distributions, average IRI over a three-year period, and more. Gain insights into pavement conditions and maintenance strategies in Florida.
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Presentation Transcript
FLORIDA DEPARTMENT OF TRANSPORTATION Transition from RN to IRI Warranty Projects Florida Department of Transportation
Data Source Three year old PCS data collected from 2013 to 2017 (last five years of available data) Data notes: Year of construction determined from acceptance Pavement age determined when PCS survey is conducted PCS data collected in lane with most distress; typically outermost lane Florida Department of Transportation
RN Distribution after Three Years All Systems Primary Limited Access 3.0 % Lane Miles with RN<3.5 All systems = 1.4% Primary = 1.7% Limited Access = 0.9% 2.5 2.0 Percent Total Miles 1.5 RN=3.5 1.0 0.5 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Ride Number Florida Department of Transportation
IRI Distribution after Three Years All Systems Primary Limited Access 4.0 3.5 Limited Access Statistic All Systems Primary 3.0 1st Quartile 44 45 41 Percent Total Miles 2.5 Median 51 53 48 2.0 Weighted Mean* 54 57 50 1.5 3r Quartile 61 64 56 *weighted based on lane miles 1.0 0.5 0.0 0 20 40 60 80 100 120 140 160 180 200 IRI (in/miles) Florida Department of Transportation
IRI(RN<3.5) Based on % Lane Miles Limited Access IRI (in/mi) All Systems Primary >95 2.6 3.8 0.8 >100 2.0 2.9 0.6 >105 >110 1.4 1.0 2.1 1.5 0.4 0.3 IRI based on RN(<3.5) lane miles All systems, RN(<3.5)=1.4%: IRI>105 in/miles Primary, RN(<3.5)=1.7%: IRI>109 in/miles Limited Access, RN(<3.5)=0.9%: IRI>94 in/miles Florida Department of Transportation
Average IRI over Three Year Period Limited Access Year All Systems Primary 0 49 49 48 1 51 52 48 2 3 53 54 55 56 50 50 Total 5 7 2 + Acceptance R&R (95in/mile) 100 102 97 Florida Department of Transportation
