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Now showing items 1-10 of 14
The Fourth Pillar of Infrastructure Sustainability: Tailoring Civil Infrastructure to Social Context
(Construction Management and Economics, 2015-09)
This research proposes technical performance over time as a fourth pillar of sustainability theory for infrastructure. It also describes a method that allows us to discover how changes in the technical pillar (operationalised as reduced breakage rates) may moderate the influence of the social pillar (operationalised as repair ...
Technology Development to Explore the Relationship Between Oral Health and the Oral Microbial Community
(2006)
The human oral cavity contains a complex microbial community that, until recently, has not been well characterized. Studies using molecular tools have begun to enumerate and quantify the species
residing in various niches of the oral cavity; yet, virtually every study has revealed additional new species, and little is known ...
THEORIZING THE INTERNAL SOCIAL SUSTAINABILITY OF SANITATION ORGANIZATIONS
(Journal of Construction Engineering and Management, 15-09)
Onsite household sanitation technologies such as septic tanks or latrines serve a large percentage of the world’s population. Unfortunately, they experience high failure rates after construction, with resulting environmental and public health consequences. Previous work has suggested that these failures are often a result of ...
Cultured Construction: Global Evidence of the Impact of National Values on Sanitation Infrastructure Choice
(Environmental Science & Technology, 2015-09)
Case study research often claims culturevariously definedimpacts infrastructure development. I test this claim using Hofstede’s cultural dimensions and newly available data representing change in national coverage of sewer connections, sewerage treatment, and onsite sanitation between 1990 and 2010 for 21 developing nations. ...
Predicting Liquefaction in Near-Real-Time (NRT): An Assessment of Geospatial vs. Geotechnical Models During the Canterbury Earthquakes
(2017-10)
Semi-empirical models based on in-situ geotechnical tests have become the standard of practice for predicting soil liquefaction. Since the inception of the "simplified" cyclic-stress model in 1971, variants based on various in-situ tests have been developed, including the Cone Penetration Test (CPT). More recently, prediction ...
CONTESTED FACTORS FOR SUSTAINABILITY: THE CONSTRUCTION AND MANAGEMENT OF HOUSEHOLD ONSITE WASTEWATER TREATMENT SYSTEMS
(Journal of Construction Engineering and Management, 2015-09)
Onsite sanitation systems experience a high failure rate with resulting environmental and public health implications. In the USA alone, the EPA estimates that 10% of the 26 million homes served by onsite systems have failed. If this failure rate is extrapolated to the 8% of the global population that the UN estimates have ...
The Internal Social Sustainability of Sanitation Infrastructure
(Environmental Science & Technology, 2015-09)
While the construction of sanitation infrastructure is one of humankind’s greatest public health and environmental engineering achievements, its benefits are not yet enjoyed by all. In addition to the billions of people not yet reached by sanitation infrastructure, at least half of systems constructed in developing contexts ...
Fragility functions for performance-based ground failure due to soil liquefaction
(2017-10)
The severity of liquefaction manifested at the ground surface is a pragmatic proxy of damage potential for various infrastructure assets, making it particularly useful for hazard mapping, land-use planning, and preliminary site-assessment. Towards this end, the recent Canterbury, New Zealand, earthquakes, in conjunction with ...
Probabalistic Prediction of Severity of Liquefaction Surface Manifestation Using Geotechnical and Geospatial Models
(2017-08-08)
The severity of liquefaction manifested at the ground surface is a pragmatic proxy of damage potential for various infrastructure assets, making it particularly useful for hazard mapping ,land-use planning, and preliminary site-assessment. Towards this end, the recent Canterbury, New Zealand, earthquakes, inconjunction with ...
Field-testing liquefaction models based on geospatial vs. geotechnical data
(6th International Young Geotechnical Engineers' Conference, 2017-08-08)
This study assesses the relative efficacy of liquefaction models based on geospatial vs. geotechnical data. In particular, state-of-practice geotechnical models based on the Cone Penetration Test (CPT) are compared to geospatial models that use readily available no-cost data. This assessment is performed using a database of ...