Remote Infrared Thermal Sensing of Sewer Voids
The question addressed by this paper is how to detect unseen problem areas in sewer systems before they give way. At present, progressive sewer administrations may use crawl crews or television...

Economic Assessment of Infrastructural Development for the Gurara River in Nigeria
Based on the preliminary designs of the hydraulic structures for the proposed Gurara river water development project in Nigeria, an economic feasibility analysis is presented. The cost...

Cost and Benefit of CSO Treatment

Large Stone Hot Mix Asphalt: State of the Art
Improved mix characteristics can be achieved by utilizing existing well-known technologies. Developments have included: more attention to voids in mineral aggregate criteria; adjusting...

Detection of Small Voids by Impact-Echo and Signal Processing
The Impact-Echo method was used to detect slab thickness, presence of small voids and reinforcement locations in a concrete slab. Studying the frequency response of the slab, it is possible...

Risk Acceptance Criteria for Performance-Oriented Design Codes
A general basis for the determination of 'acceptable risks' needs to be established to facilitate the development of risk-based performance-oriented design Codes....

Seismic Resistant Low-Cost Masonry Buildings in Peru
Future housing in developing countries will be provided mainly in medium rise, four to six stories, bearing wall masonry buildings. This paper reports on the rationality behind this political...

Effect of Void on Footing Behavior Under Eccentric and Inclined Loads
The effect of underground void on the behavior of strip footings subjected to eccentric and inclined loads was investigated using the finite element method of analysis. Results of the...

Erosion Control: Marsh and Low-Cost Breakwater

Detecting the Defects
According to estimates, for every dollar spent on preventive maintenance of the infrastructure, $10 will be saved by avoiding emergency repairs after major structural failures. Technologies...

Economic Analysis Guidelines—Western Area Power Admin
Guidelines addressing methods and procedures for evaluating benefit and cost components of power projects are being prepared for Western Area Power Administration to use in economic analyses...

Management of Computer Systems

Socio-Economic Issues in Financing Water Resources Development Compared to Non-Structural Alternatives
Like the hydrologic cycle, financing water resources development requires a holistic view of the technical, legal, institutional (social and economic) factors before alternative selection....

Alternating Direction Oxidation Ditches—A Cost Saving Technology from Denmark
A soon to be released EPA report claims that in Denmark, small alternating direction oxidation ditches (ADOD) save as much as 70% of the cost for conventional oxidation ditches. The alternating...

Alternatives to the Precommensuration of Costs, Benefits, Risks, and Time
The thesis advanced in this paper is that benefit-cost analysis, the present-value-of-cost (and benefit) approach, and the expected value of damage as a measure of risk all share a faulty...

Inflatable Form Construction in Space
In 1973, NASA launched Skylab 1 using a modified third stage of a Saturn V Rocket. This orbital workshop proved to be a success even though problems occurred. This article discusses the...

Benefit-Cost Analysis: Past and Future Directions
As implemented at the State level, highway resource allocation models fail to consider the travel time delay and crashes that result from construction. They use the economic costs of crashes...

Highway Safety
At the Crossroads
The papers in this book were presented at the ASCE Specialty Conference, Highway Safety: At the Crossroads, held in San Antonio, Texas, March, 1988. Among the topics covered are: assessment...

Cost-Effectiveness and Urban Storm-Water Quality Criteria
This paper reviews alternative methods of evaluating the effectiveness of investments in urban stormwater quality improvement. Experience in the related area of control of dry-weather...

Identifying DepositionalAreas in Puget Sound
Depositional areas where fine sediments accumulate have been located through low-cost sediment studies instead of more costly current meter and settling trap measurements. Over 200 samples...

 

 

 

 

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