Setting Competitive Water Reuse Rates
Palm Beach County Water Utilities Department (WUD) is preparing to provide reclaimed water service to several large irrigators near the County's Southern Region Wastewater Treatment Plant...
WATSUP: A Simulation Model for Water Supply Cost and Reliability
WATSUP (Water Supply) is a computer model developed to provide a prototype modeling tool for planners to estimate the costs and reliability of urban water supply systems on a regional...
Opportunities, Constraints and Change in Reservoir Management
Changing hydrologic, economic, social and environmental conditions have focused attention on the opportunities for changing reservoir management. Such change can occur in three areas....
Flood Control vs. Flood Management
For the last 130 years, flood policy in the U.S. has been dominated by the belief that floods can be controlled by structural methods, such as levees, dikes and embankments. These efforts...
A PC-Based Stochastic Project Scheduling and Costing Module
Project delays and cost overruns are very common in construction industry. This may be back-traced significantly to non or ill treatment of uncertainties that overwhelm construction projects....
Quantification of Cost Uncertainties Using Neural Network Technique
This paper describes the development of a neural network system for forecasting cost escalation in construction. The input of the neural network system consists of factors that have an...
Range Estimating -- User-Friendly Risk Analysis
This paper introduces the reader to Range Estimating - a user-friendly decision technology for project cost risk analysis. Although developed with the non-statistician in mind, Range Estimating...
Multi-Objective Optimization of Construction Schedules
This paper focuses on the multi-objective deterministic and stochastic modelling and optimization of construction tasks scheduling. Of particular importance is a frequency need to satisfy...
How Many Observation Wells Does it Take to Find a Groundwater Contamination Plume?
A Bayesian data worth framework is developed to balance the benefits and costs of data collection. In addition to Bayesian decision analysis, tools from Monte Carlo simulation, numerical...
Construction Expertise Transfer with Knowledge Based Systems
The experience held by a cost estimating engineer is a valuable asset in every construction company. For a reliable cost estimation at the conceptual stage of a building project, the missing...
The Design of a Proactive Cost Feedback System for Construction Project Management
Cost projection in project management requires the adjustment of historical costs to reflect the expected context. Improved cost projections require the incorporation of all relevant contextual...
Refinement of Cost Estimates with Artificial Neural Nets
An estimate should be refined for undefined items. Usually, contingency is added to cover any inadequacies in estimate basis definition and inadequacies in estimating methods and data....
Application of Pen Computing to Construction Inspection
This paper discusses one customized inspection software package which runs on a pen computer. This program provides a format that assures a fast and accurate inspection process....
Interactive Cost Estimating During Design
This paper describes a model, called the Automated Interactive Cost Estimating System (AICES), which gives users access to reinforced concrete cost information that is sensitive to variations...
Practical Approach to Cope with Construction Cost Uncertainty in an Inflationary Environment
There are actions suggested to mitigate the risk in costs caused by an inflationary economy, such as escalation clauses and including price contingencies in the bid . This paper presents...
Clarifier Enhancements Yield Excellent Performance
The critical role of final clarifiers in meeting effluent permit requirements in indisputable. Poor performance of the final clarification step may adversely affect effluent quality. Experience...
Optimization Studies of Anaerobic Expanded Bed Reactor Pretreatment of Domestic Wastewater
In recent years the advent of the anaerobic expanded bed reactor (AEBR) has made possible the treatment of wastewaters of comparatively lower strength than have traditionally been treated...
Removal of Arsenic by Enhanced Coagulation and Membrane Technology
The U.S. EPA is promulgating a new MCL for arsenic based on epidemiology studies. The concern from the water industry is that the new MCL will be significantly lower than the current MCL...
Low-Cost Bridge Scour Measurements
This paper reports on the use of a low-cost, highly portable sonar system. The ease of use of the instrument and the short time required to make measurements should make this system valuable...
The Inflation Equation
The authors, a Brazilian and an American involved in a US$1 billion-plus project to build schools in the state of Rio de Janeiro, discuss how they managed despite monthly inflation of...
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