Redirigiendo al acceso original de articulo en 17 segundos...
ARTÍCULO
TITULO

Estimating large complex projects.

Cliff Schexnayder    
Keith Molenaar    
Jennifer Shane    

Resumen

Managing large capital construction projects requires the coordination of a multitude of human, organizational, technical, and natural resources. Quite often, the engineering and construction complexities of such projects are overshadowed by economic, societal, and political challenges. The ramifications and effects, which result from differences between early project cost estimates and the bid price or the final project cost, are significant. Over the time span between the initiation of a project and the completion of construction many factors influence a project's final costs. This time span is normally several years in duration but for highly complex and technologically challenging projects, project duration can easily exceed a decade. Over that period, changes to the project scope often occur. The subject here is a presentation of strategies that support realistic cost estimating. Through literature review and interviews with transportation agencies in the U.S. and internationally the authors developed a database of the factors that are the root causes of cost estimation problemsgrandes y complejos. Rev. ing. constr. [online]. 2007, vol.22, n.2, pp. 91-98. ISSN 0718-5073.  http://dx.doi.org/10.4067/S0718-50732007000200003.

 Artículos similares

       
 
Jiayi Shen, Chang Ge, Yide Zhan, Zhaoyi Ye, Qiang Zhang and Jiawang Chen    
Currently, p-y models have been broadly adopted for estimating the lateral bearing capacity of large-diameter monopiles in offshore engineering. However, the existing p-y curves cannot reflect the effect of pile diameter D on the lateral response of mono... ver más

 
Miro Petkovic, Igor Vujovic, Zvonimir Lu?ic and Jo?ko ?oda    
Automated surveillance systems based on machine learning and computer vision constantly evolve to improve shipping and assist port authorities. The data obtained can be used for port and port property surveillance, traffic density analysis, maritime safe... ver más

 
Haitong Xu and C. Guedes Soares    
A data-driven method, the truncated LS-SVM, is proposed for estimating the nondimensional hydrodynamic coefficients of a nonlinear manoeuvring model. Experimental data collected in a shallow water towing tank are utilized in this study. To assess the acc... ver más

 
Xiaoyue Yang, Yi Yang, Shenghua Xu, Jiakuan Han, Zhengyuan Chai and Gang Yang    
Geographically weighted regression (GWR) is a classical method for estimating nonstationary relationships. Notwithstanding the great potential of the model for processing geographic data, its large-scale application still faces the challenge of high comp... ver más

 
Apolinario Lujano, Miguel Sanchez-Delgado and Efrain Lujano    
The FAO 56 Penman?Monteith equation (PM) is considered the most accurate method for estimating reference evapotranspiration (ETo). However, PM requires a large amount of data that is not always available. Thus, the objective of this study is to improve t... ver más
Revista: Water