Evaluation of Long-Term Pavement Performance Based on New Mexico LTPP SPS5 Data

2014 ◽  
Author(s):  
Umme Amina Mannan ◽  
Rafiqul A. Tarefder
Keyword(s):  
New Mexico ◽  
Pavement Performance

Use of Long-Term Pavement Performance Data to Develop Traffic Defaults in Support of Mechanistic-Empirical Pavement Design Procedures

2003 ◽  
Vol 1855 (1) ◽  
pp. 176-182 ◽  
Author(s):  
Weng On Tam ◽  
Harold Von Quintus
Keyword(s):  
Pavement Design ◽  
Vehicle Classification ◽  
Pavement Performance ◽  
Traffic Data ◽  
Design Procedures ◽  
Load Spectra ◽  
State Highway ◽  
Pavement Structures ◽  
Empirical Design

Traffic data are a key element for the design and analysis of pavement structures. Automatic vehicle-classification and weigh-in-motion (WIM) data are collected by most state highway agencies for various purposes that include pavement design. Equivalent single-axle loads have had widespread use for pavement design. However, procedures being developed under NCHRP require the use of axle-load spectra. The Long-Term Pavement Performance database contains a wealth of traffic data and was selected to develop traffic defaults in support of NCHRP 1-37A as well as other mechanistic-empirical design procedures. Automated vehicle-classification data were used to develop defaults that account for the distribution of truck volumes by class. Analyses also were conducted to determine direction and lane-distribution factors. WIM data were used to develop defaults to account for the axle-weight distributions and number of axles per vehicle for each truck type. The results of these analyses led to the establishment of traffic defaults for use in mechanistic-empirical design procedures.

Going Big

2013 ◽  
Vol 1 (1) ◽  
pp. 13-23 ◽  
Author(s):  
Sarah Schlanger ◽  
George MacDonell ◽  
Signa Larralde ◽  
Martin Stein
Keyword(s):  
New Mexico ◽  
Historic Preservation ◽  
Land Management ◽  
Advisory Council ◽  
Bureau Of Land Management ◽  
Permian Basin ◽  
New Development ◽  
Collaborative Working ◽  
Time And Energy

AbstractIn 2008, the Carlsbad Field Office of the Bureau of Land Management (BLM) made a fundamental change in how they work with the energy industry in the Permian Basin of southeastern New Mexico, one of the nation's busiest “oil patches.” Through a collaborative effort that involved the Bureau of Land Management, the New Mexico State Historic Preservation Officer, the Advisory Council on Historic Preservation, the Mescalero Apache Tribe, and industry representatives, they developed and implemented the Permian Basin Memorandum of Agreement (MOA). This agreement allows energy development proponents to contribute funds to archaeological research in lieu of spending an equivalent amount of money on traditional archaeological field survey. The mitigation program governs how BLM addresses long-term damage and cumulative impacts to archaeological resources as new development proceeds in the Permian Basin MOA area. Now in its fifth year, the program has succeeded in key ways: industry has gained control over schedules and time, while archaeologists have gained control over where and how they do archaeology. Key lessons have been learned along the way: The funding mechanisms of the program work well, but doing archaeology through a collaborative working group takes a lot of time and energy.

Comprehensive Evaluation of Rutting of Warm-Mix Asphalt Utilizing Long-Term Pavement Performance Specific Pavement Studies

2020 ◽  
Vol 2674 (7) ◽  
pp. 272-283 ◽  
Author(s):  
Biswajit K. Bairgi ◽  
A.S.M. Asifur Rahman ◽  
Rafiqul A. Tarefder ◽  
Matias M. Mendez Larrain
Keyword(s):  
Comprehensive Evaluation ◽  
Field Investigation ◽  
Warm Mix Asphalt ◽  
Pavement Performance ◽  
Laboratory Evaluation ◽  
Production Temperature ◽  
Wheel Tracking Test ◽  
Modified Binder ◽  
Wheel Tracking

Warm-mix asphalt (WMA) technologies allow binder softening for compaction benefits. Lower production temperature also causes reduced short-term aging in WMA. Considering the long-term implication of the reduced aging and binder softening, WMA is being questioned about its rutting characteristics. As such, this study evaluates different WMA technologies for rutting characteristics in comparison to traditional hot-mix asphalt (HMA) through laboratory and field investigation. The study utilized the long-term pavement performance (LTPP) project in the state of New Mexico called Specific Pavement Study-10 (SPS-10), which was designed to evaluate the WMA performances. The LTPP SPS-10 section includes: (i) control HMA, (ii) foaming, (iii) Evotherm, (iv) Cecabase 1, and (v) Cecabase 2 mixtures. Cecabase 2 mixture consists of a polymer-modified binder (PG 70-28+), whereas other mixtures consist of PG 70-28 binder. The aggregate type, properties, and gradations are the same in all the sections. Laboratory evaluation of rutting was conducted through the Hamburg wheel tracking test. Long-term field rutting was evaluated through Mandli’s pavement profile scanner, a laser-based distress evaluation technology. The study found that WMA with foaming, Evotherm, or Cecabase shows slightly higher rutting compared with the control HMA; however, all the sections satisfied laboratory and field rutting criteria. The use of a polymer-modified binder in WMA significantly improves the rutting characteristics.

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