Effect of Michigan multi-axle trucks on pavement distress and profile: executive summary.

Details

• Creators:
  Chatti, Karim
• Corporate Creators:
  Michigan State University. Pavement Research Center of Excellence
• Corporate Contributors:
  Michigan. Dept. of Transportation. Construction and Technology Division
• Subject/TRT Terms:
  • Pavements
  • Deterioration
  • Live loads
  • Axle load force
  • Tractor trailer combinations
  • Pavements--Deterioration--Michigan
  • Pavements--Live loads
  • Tractor trailer combinations--Axles
• Publication/ Report Number:
  Project RC-1504
• Resource Type:
  Tech Report
• Geographical Coverage:
  Michigan
• Edition:
  Executive summary.
• Corporate Publisher:
  Michigan. Department of Transportation
• Abstract:
  Truck traffic is a major factor in pavement design because truck loads are the primary cause of ; pavement distresses. Trucks have different axle configurations that cause different levels of ; pavement damage. The American Association of State Highway Transportations Officials ; (AASHTO) pavement design procedure only accounts for single and tandem axles used in the ; AASHO road test and uses extrapolation to estimate the damage due to tridem axles. Truck axle ; configurations and weights have significantly changed since the AASHO road study was ; conducted in the late 1950’s and early 1960’s. There remain concerns about the effect of newer ; axle configurations on pavement damage, which are unaccounted for in the AASHTO procedure. ; The State of Michigan is unique in permitting several heavy truck axle configurations that are ; composed of up to 11 axles, sometimes with up to 8 axles within one axle group. Therefore, ; there is a need to quantify the relative pavement damage resulting from these multiple axle ; trucks. The objective of this research study is to determine the effect of heavy multi-axle ; Michigan trucks on pavement distress by quantifying the effects of trucks with different axle ; configurations (single, tandem and multi-axles) on pavement damage. This was done by ; determining Axle Factors (AF) from laboratory and mechanistic analyses and then calculating ; Truck Factors (TF) using these AF and the AASHTO Load Equivalency Factors (LEF).
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18199/dot_18199_DS1.pdf
• File Type:
  [PDF - 231.22 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:77bc52b28a4781434130d4c92d679d986964d3e12b76e2e9aff2184dae16bc42