Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Cost estimation of trackworks of light rail and metro projects
Download
index.pdf
Date
2009
Author
Öztürk, Erhan
Metadata
Show full item record
Item Usage Stats
295
views
553
downloads
Cite This
The main objective of this work is to develop models using multivariable regression and artificial neural network approaches for cost estimation of the construction costs of trackworks of light rail transit and metro projects at the early stages of the construction process in Turkey. These two approaches were applied to a data set of 16 projects by using seventeen parameters available at the early design phase. According to the results of each method, regression analysis estimated the cost of testing samples with an error of 2.32%. On the other hand, artificial neural network estimated the cost with 5.76% error, which is slightly higher than the regression error. As a result, two successful cost estimation models have been developed within the scope of this study. These models can be beneficial while taking the decision in the tender phase of projects that includes trackworks.
Subject Keywords
Civil engineering.
URI
http://etd.lib.metu.edu.tr/upload/2/12610332/index.pdf
https://hdl.handle.net/11511/18455
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Impact of passanger comfort level on design of short-span composite steel i-girder high speed railroad bridges
Şentürk, Tolga; Caner, Alp; Department of Civil Engineering (2009)
In globalizing world, increase in demand for high speed rail travel requires comfortable ride over bridges while maintaining an economical design. These bridges either have composite steel I-girders, prestressed precast I or box girder superstructures. The span lengths can reach up to 40 meters. If frequency of wheel load pass at a point on bridge matches with one the critical frequencies of the structure, excessive vibration can developed both at the train and the bridge even if the structure is structural...
Dynamic investigation and rehabilitation of existing railway truss bridge under high speed train loadings for passenger comfort
Mutlu, Gündüz; Yılmaz, Çetin; Department of Civil Engineering (2008)
In Turkey, big investments are made to improve the existing train lines for use of new high speed trains. Most of the bridges on the existing train lines are typical and in this thesis one of the standard types, the classic steel truss bridge is investigated. This thesis presents the dynamic investigation of standard type existing truss bridge for passenger comfort criteria under the high speed train loadings. Two different computational analysis models have been developed to idealize the vehicle-bridge mod...
Developing a strategic information system for construction companies
Güneş, Tanyeli; Dikmen Toker, İrem; Department of Civil Engineering (2008)
Problems and issues at project level have been the main concern of the construction management studies and construction professionals. Consequently, the long-term strategic issues at corporate level remained uncovered in construction companies. The complex and unique characteristics of the industrial context of construction also limited the adoption of strategic management concepts by the companies. Recently, however, changing business environment, increasing competition in construction arena and higher cli...
Lifetime Performance Analysis of Existing Reinforced Concrete Bridges. I: Theory
Akgül, Ferhat (American Society of Civil Engineers (ASCE), 2005-06-01)
In this first part of a two-part paper, a general methodology for lifetime performance analysis of existing reinforced concrete bridges is presented. The framework for the methodology is established by identifying four distinct categories: limit state equations, random variables, deterministic parameters, and constant coefficients. The limit state equations are derived by strictly adhering to the load and capacity formulas and requirements set forth in AASHTO specifications. Generality is pursued by establi...
Dynamic effects of moving traffic on railway bridges
Cinek, Fatih; Yılmaz, Çetin; Department of Civil Engineering (2010)
In this study, dynamic effects on high speed railway bridges under moving traffic are investigated. Within this context, the clear definition of the possible dynamic effects is provided and the related studies that exist in literature are investigated. In the light of those studies, analytical procedures that are defined to find the critical dynamic responses such as deflections, accelerations and resonance conditions are examined and a MatLab programming language is written to obtain the responses for diff...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
E. Öztürk, “Cost estimation of trackworks of light rail and metro projects,” M.S. - Master of Science, Middle East Technical University, 2009.