Current truck size and weight standards in the U.S. are a blend of federal and state regulations. Typically, state highway agencies limit the movement of superheavy loads and overweight (OW) vehicles because they can cause excessive damage to the pavement. In this study, weigh-in-motion (WIM) data from different sites across Florida were analyzed to study the trends of OW vehicles. Based on WIM data analysis, changes in the expected pavement design life in different functional classes of pavement were determined. It is recommended that the Florida Department of Transportation considers updating the equivalent axle load factor values used for the design of non-limited highway pavements. Furthermore, the study also outlines the necessary steps to assess the impact of superheavy load movement on pavement life without any iterative approach.
CPCS, Perkins Motor Transport, Inc., and Portscape, Inc. NCHRP Report 830: Multi-State, Multimodal, Oversize/Overweight Transportation. NCHRP Project No. 08-97. National Cooperative Highway Research Program, Transportation Research Board, National Research Council, Washington, D.C., 2016.
2.
AliH.NowakA. S.StallingsJ. M.ChmielewskiJ.StawskaS.BabuA. R.HaddadiF.Impact of Heavy Trucks and Permitted Overweight Loads on Highways and Bridges Now and in the Future versus Permit Fees, Truck Registration Fees, and Fuel Taxes. Florida Department of Transportation, Tallahassee, 2020.
3.
PapagiannakisA. T.NCHRP Synthesis 476: Practices for Permitting Superheavy Load Movements on Highway Pavements. National Cooperative Highway Research Program, Transportation Research Board, National Research Council, Washington, D.C., 2015.
4.
SebaalyP.SiddharthanR.HuftD.Impact of Heavy Vehicles on Low-Volume Roads. Transportation Research Record: Journal of the Transportation Research Board, 2003. 1819: 228–235.
5.
Al-QadiI. L.WangH.Pavement Damage Due to Different Tire and Loading Configurations on Secondary Roads. Report No. 008IY01. NEXTRANS, West Lafayette, IN, 2009.
6.
KhanalS.OlidisC.HeinD. K.Modelling Pavement Response to Superheavy Load Movement. Proc., Conference of the Transportation Association of Canada, Toronto, ON, 2016.
7.
BanerjeeA.ProzziJ. P.ProzziJ. A.Evaluating the Effect of Natural Gas Developments on Highways: Texas Case Study. Transportation Research Record: Journal of the Transportation Research Board, 2012. 2282: 49–56.
8.
BanerjeeA.ProzziJ. A.BuddhavarapuP.Framework for Determining Load Equivalencies with DARWin-ME. Transportation Research Record: Journal of the Transportation Research Board, 2013. 2368: 24–35.
9.
HajjE. Y.Batioja-AlvarezD. D.SiddharthanR. V.Mechanistic-Based Pavement Damage and Associated Cost from Overweight Vehicles in Nevada. Report No. 609-13-803. Nevada Department of Transportation, Carson City, 2017.
10.
HajjE. Y.SiddharthanR. V.NabizadehH.ElfassS.NimeriM.KazemiS.Batioja-AlvarezD. D.PiratheepanM.Analysis Procedures for Evaluating Superheavy Load Movement on Flexible Pavements, Volume I: Final Report. Report No. FHWA-HRT-18-049. Federal Highway Administration, Washington, D.C., 2018.
11.
FDOT Pavement Design Section. Flexible Pavement Design Manual. Florida Department of Transportation, Tallahassee, 2023.
12.
NabizadehH.HajjE.SiddharthanR.NimeriM.ElfassS.PiratheepanM.Analysis Procedures for Evaluating Superheavy Load Movement on Flexible Pavements, Volume V: Appendix D, Estimation of Subgrade Shear Strength Parameters Using Falling Weight Deflectometer. Report No. FHWA-HRT-18-053. Federal Highway Administration, Washington, D.C., 2019.
13.
HuangY. H.Pavement Analysis and Design, 2nd ed.Pearson Prentice Hall, Upper Saddle River, New Jersey, 2004.
14.
Asphalt Institute. Thickness Design-Asphalt Pavements for Highwys and Streets, Manual Series No. 1, The Asphalt Institute, 1981.
15.
AASHTO. Mechanistic-Empirical Pavement Design Guide, Interim Edition: A Manual of Practice. American Association of State Highway and Transportation Officials (AASHTO), Washington, D.C., 2010.
16.
DarterM.MallelaJ.Titus-GloverL.RaoC.LarsonG.GotlifA.Von QuintusH., et al. Changes to the Mechanistic-Empirical Pavement Design Guide Software Through Version 0.900. NCHRP Research Results Digest 308. Transportation Research Board, Washington, D.C., 2006.
17.
RobbinsM. M.RodeznoC.TranN.TimmD.Pavement ME Design–A Summary of Local Calibration Efforts for Flexible Pavements. NCAT Report 17-07. National Center for Asphalt Technology, Auburn, AL, 2017.
