The I88 culvert crossing of Carrs Creek in Sidney, NY collapsed during the record setting Mid‐ Atlantic States Flood of June 2006. Rapid construction with geofoam as lightweight fill enabled partial reopening of I88 by Labor Day 2006. Shortly after reopening of the roadway, rapid settlements developed. The geofoam fill was removed and I88 was rebuilt using lightweight aggregates. An investigation of the rapid construction failure was completed in 2009. This report examines the failure of the re‐construction and the results of the subsequent investigation.

<p>The primary objective of this proposal is to develop a framework to identify the most likely source of rutting within the pavement system and the presence of mixture instability in the surface layer within the first few years of the pavement life. Currently, the only accurate method of identifying the source of rutting is to cut trenches and observe deformation in the various layers of the pavement structure, a process that is inconvenient, destructive, and expensive.

<p>Warm mix asphalt (WMA) technologies have attracted great interest in the field of pavement engineering due to its potential energy savings and environmental benefits. As one of the most popular WMA processes, Advera? utilizes zeolite to greatly reduce the production temperature of pavement without compromising the performance of the mixture. However, due to the lack of a comprehensive rheological characterization, the existing specifications cannot provide the optimum temperature and additive proportion for specific binder or aggregate types.

<p>The main objective of this project was to evaluate the impact of the New York State divisible-load permit system for heavy trucks in terms of benefits and costs to society. The costs result primarily from increased pavement damage; the benefits accrue to the trucking industry (primary economic benefits) and also to New York State&#39;s economy (secondary economic benefits).

<p>The main objective of this project was to evaluate the impact of New York State?s divisible-load permit system for heavy trucks in terms of benefits and costs to society. Under this system, New York State has allowed a fleet of approximately 12,800 power units to operate above the federal limits on gross vehicle weights and axle loads. The system has eleven permit categories corresponding to number of axles, weight limits, and statewide or downstate geographic area of operation.</p>

<p>Herbicides have been widely used to control vegetation on roadside rights-of-way because they are perceived as more cost effective than other treatments. However, as knowledge of environmental systems has developed along with a growing social perception of health and environmental issues, a need for alternative methods to synthetic herbicide use for vegetation control along roadsides has become a prominent issue. Earlier phases of this research indicated several promising physical, cultural, biological/ecological, and chemical controls.

Herbicides have been widely used to control vegetation on roadside rights-of-way because they are perceived as more cost effective than other treatments. However, as knowledge of environmental systems has developed along with a growing social perception of health and environmental issues, a need for alternative methods to herbicide use for vegetation control along roadsides has become a prominent issue. As many organizations are also looking into innovative control methods, it is important to gather and review information generated throughout the industry.

Vegetation managers could use a tool to compare cost effectiveness of different non-herbicide and herbicide alternatives for treating roadside vegetation. Such a tool could be used to make informed decisions, better communicate the bases for treatment choices with various stakeholders, and direct research and development activities (focus R&D where the comparisons of different alternatives are interesting, but weak on factual information).

State-of-the-art technology is available which incorporates shredded scrap tire rubber known as crumb rubber modifier (CRM) as a modifier for asphalt cement in paving mixtures. CRM is the general term to describe all rubber particles obtained from the shredded of discarded tires which are reduced up to a size of 6.35 mm. Two technologies are most commonly used to incorporate crumb rubber in asphalt pavement applications, namely, the wet and dry process.

<p>This paper investigates the crack initiation and saturation for opening-mode cracking. Using elastic governing equations and a weak form stress boundary condition, we derive an explicit solution of elastic fields in the surface course and obtain the energy release rate, so that opening-mode cracking initiation can be determined by fracture energy criterion. Interestingly, the longitudinal stress between such cracks along the surface undergoes a transition from tensile to compressive with increasing applied tensile loading, which implies crack saturation.