Pavements Research

A primary asset for NHDOT, pavements is an area where research has made a significant impact. Through assessment of the condition of the subsurface structure, the NHDOT research program has provided the opportunity to investigate NHDOT pavement system methods.

Research makes an Impact on Pavement Systems

 

Assessing the Effectiveness of Lower Impulse Loads on Reinforced Asphalt Pavement (26962S)

  • Researcher: U.S. ACoE Cold Regions Research and Engineering Laboratory
  • Date: 2018
  • Final Report

Assessment of Asphalt Concrete Reinforcement Grid in Flexible Pavement (26962A)

  • Researcher: U.S. ACoE Cold Regions Research and Engineering Laboratory
  • Date: 2016
  • Final Report

Polyurethane Injection to Stabilize Roadways (15680H)

  • Researcher: New Hampshire Department of Transportation
  • Date: 2016
  • Final Report

Structural Condition Assessment of Reinforced Base Course Pavement (15680S)

  • Researcher: U.S. ACoE Cold Regions Research and Engineering Laboratory
  • Date: 2015
  • Final Report

Preparation of Rumble Strips Prior to Overlayment (13733V)

Winter Tenting of (HMA) Highway Pavement (12323C)

  • Researcher: U.S. ACoE Cold Regions Research and Engineering Laboratory
  • Date: 2000
  • Final Report
  • Poster

Performance-Related HMA Aggregate Tests (Synthesis) (12323L)

  • Researcher: U.S. ACoE Cold Regions Research and Engineering Laboratory
  • Date: 1999
  • Final Report

Resilient Modulus for NH Subgrade Soils/Mechanistic AASHTO Design (12323P)

Correlation Between Measured Ride Quality and Mean Panel Ratings (1995-01)

  • Researcher: New Hampshire Department of Transportation
  • Date: 1995

The NHDOT performed a study in 1995 to investigate the relationship between the measured ride quality of bituminous pavements and the public perception of ride. The objectives of the research were to 1) verify the correlation between measured ride quality and the motoring publics perception of ride quality on New Hampshire roads, 2) determine the ride quality of a variety of roadway segments to assist in the development of pay limits for the Departments QC/QA specification for bituminous pavements, and 3) build confidence in the data collected by the Profilometer and document results. The study was designed in accordance with procedures set up in NCHRP Report 308 and involved the use of a panel to subjectively evaluate the ride quality of thirty-four bituminous pavement test sites. These same sites were then tested by the department's KJLaw T6500 Profilometer. Results obtained by the Profilometer were compared and correlated to the average ride quality rating (MPR) from the panel.

Layer Coefficients for NHDOT Pavement Materials (X2725)