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Author: Matthew Chan
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 270
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Book Description
Author: Matthew Chan
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 270
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Book Description
Author: Stuart D. Anderson
Publisher: Transportation Research Board
ISBN: 0309098750
Category : Highway planning
Languages : en
Pages : 290
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Book Description
'TRB's National Cooperative Highway Research Program (NCHRP) Report 574: Guidance for Cost Estimation and Management for Highway Projects During Planning, Programming, and Preconstruction explores approaches to cost estimation and management designed to overcome the root causes of cost escalation and to support the development of consistent and accurate project estimates through all phases of the development process, from long-range planning, through priority programming, and through project design. NCHRP Web-Only Document 98 details the steps followed by the research team in the development of NCHRP Report 574"--Publisher's description.
Author:
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 46
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Book Description
In May 2002, Virginia's Commonwealth Transportation Commissioner tasked his Chief of Technology, Research & Innovation with leading an effort to develop a definitive, consistent, and well-documented approach for estimating the cost of delivering construction projects. A task force that included Virginia Department of Transportation (VDOT) central and district office staff, Virginia Transportation Research Council staff, Commonwealth Transportation Board members, and a metropolitan planning organization member was formed to either locate a well-founded, tested method for estimating project costs that could be adapted for use by VDOT or develop one. The task group found that a VDOT district had been using an estimation worksheet for several years that produced consistent and reliable results for certain types of roadway and bridge construction. The task group determined that no other method examined had the specificity and potential of this tool. The project team expanded the tool by collecting extensive project data and obtaining evaluations of VDOT project management personnel statewide to develop it further. The existing Excel worksheet with roadway and bridge estimates was expanded to include construction engineering, to be applicable for interstates, and to generate estimates for right-of-way and utilities costs. Data on completed projects were collected from all VDOT districts to help calibrate the model further to account for cost variations across the state. The task group also recognized early on that a very strong focus on project scoping was essential to accurate project estimation. A previous VDOT scoping committee had determined that VDOT did not have a consistent, uniform method that was being used statewide to scope projects. As a result, project cost estimates made at the scoping stage often did not hold up over time because key project features were invariably overlooked. The result was inaccurate estimates. Testing of the cost estimation tool was completed in the summer of 2003. Analysis of a sample of completed VDOT construction projects throughout the state showed that the tool yielded results that, on average, differed from actual final project costs by 22 percent. After further modifications, the Project Cost Estimation System (PCES), as it was named, became a fully operational system for VDOT in October 2003. The PCES is composed of three elements: a cost estimation tool, an improved scoping process, and a project development website. The responsibility for maintaining and updating the PCES now rests with VDOT's Scheduling & Contract Development Division.
Author: Douglas D. Gransberg
Publisher:
ISBN: 9780309375542
Category : Roads
Languages : en
Pages : 100
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Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) Report 826: Estimating Highway Preconstruction Services Costs presents guidance for state departments of transportation (DOTs) and other agencies for estimating preconstruction services (PCS) costs for transportation project development. PCS refers to a varied assortment of project-specific engineering and other professional services required before construction begins on a bridge, highway, or other transportation project, whether provided by agency staff or consultants. Volume 1: Guidebook addresses principal sources and components of PCS costs, PCS estimating methodologies, trends (such as changes in design and construction technology, design standards, program requirements, and professional workforce) likely to affect PCS costs, and advice on agency policies and practices that can help control program risk through improved PCS cost estimation. Accompanying Volume 1, Volume 2: Research Report documents the development, testing, validation, and packaging of an accurate, consistent, and reliable method for estimating PCS costs."--
Author: Kelly E. Donnell
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Project cost escalation is a major problem for State Highway Agencies (SHA). This problem is evident in cost estimating procedures that may not promote consistency and accuracy of costs over the project development process. The research proposes that a relationship exists between applying good estimating practices and minimizing cost escalation from the initial planning estimate to the engineer's estimate at final design. The objective of this research is to develop a preliminary list of strategies, methods, and tools for project cost estimation practices aimed at achieving greater consistency and accuracy between the project development phases. A literature review was conducted that assisted in identifying factors that lead to the cost escalation of projects. The information from the literature was used to discover the core estimating assumptions that are the root causes behind cost escalation and lack of project estimate consistency and accuracy. After the cost escalation factors were determined, interviews with SHAs were conducted that lead to identifying unique and/or innovative approaches that will aid the SHAs in overcoming the cost escalation factors. The main methodology used to develop a potential list of strategies, methods, and tools was first focused on linking strategies to causes of cost escalation. Global strategies were identified by means of this approach. Methods and tools that would likely be effective in implementing the strategies are therefore directed at mitigating root causes of estimate problems in a focused approach. The strategies, methods, and tools are aligned with the project development phase where they would be implemented. Thus, a preliminary list of strategies, methods, and tools is provided in this study.
Author:
Publisher:
ISBN:
Category : Highway planning
Languages : en
Pages : 90
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Book Description
This report identifies and analyzes the nature of discrepancies in highway construction costs and cost inflation estimates between Minnesota and other federal and national measures. It concludes that MnDOT's cost estimating practices and cost indexing when compared to peer states and Federal Highway Administration are sound.
Author: Albert F Kaminsky (Jr)
Publisher:
ISBN:
Category :
Languages : en
Pages : 137
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Book Description
A preliminary cost estimating procedure was developed using historical highway construction project bid data for the State of Alabama Highway Department (AHD). The preliminary cost estimating procedure developed requires only project length and preliminary engineering estimates of material quantity to calculate a project cost. This procedure has specific application in estimating future project costs for budgeting purposes. The procedure developed relied upon the fact that ninety percent of the bid total cost was comprised on one-third or less of the bid pay items. The dominance of a bid by specific pay items applies to large and small projects alike. The geographic location within the State of Alabama has a negligible effect upon the cost estimating procedure. The application of the preliminary cost estimating procedure to three distinctly different types of construction projects examined in this research confirm its usefulness. The preliminary cost estimating procedure developed for the AHD is workable and can be applied to a wide range of highway construction and maintenance projects. (Author).
Author: John Woolley
Publisher:
ISBN:
Category : Road construction contracts
Languages : en
Pages : 40
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Book Description
Author: Albert Frank Kaminsky
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 246
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Book Description
Author: Ghazanfer Alikhan Bozai
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 178
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Book Description
