scholarly journals Relationships between total construction cost and project strategic, site related and building definition variable

2006 ◽  
Vol 11 (3) ◽  
pp. 165-180 ◽  
Author(s):  
David J. Lowe ◽  
Margaret W Emsley ◽  
Anthony Harding
Keyword(s):  
Construction Cost ◽  
Total Construction Cost

Leveraging Mobile Technology to Facilitate Collaboration Between Shipyards and the Navy Customer for Improved Delivery Cycle Time

2013 ◽  
Author(s):  
Robert T. Parker ◽  
Jeb Baugh ◽  
Ashley Fuller
Keyword(s):  
Mobile Technology ◽  
Cycle Time ◽  
Construction Cost ◽  
Management Systems ◽  
Internal Quality ◽  
Value Proposition ◽  
Mobile Component ◽  
Multiple Groups ◽  
The Right ◽  
Total Construction Cost

Today’s Navy ships are some of the most complex vessels being manufactured. As such, there are a multitude of stakeholders and requirements that must be satisfied through all phases of construction. Manufacturing issues invariably arise and must be tracked from initial documenting through to resolution. Given the number and types of stakeholders involved in the manufacturing process, this can lead to information silos with multiple groups having differing views into each other’s data (if they have a view at all). While the shipyards have their internal quality (lien) management systems, the Navy system of record for outstanding issues is the Technical Support Maintenance (TSM) system. Lacking an efficient interface between TSM and the shipbuilders organic lien management systems and a mobile component that can be taken to the ship , the TSM system is cumbersome and is yet another source of siloed information. Additionally, once a manufacturing issue has reached the TSM system there can be a significant dollar value attached to resolution. Resolving issues once they have reached the Navy’s system of record can extend production schedules to the right and significantly impact total construction cost and delivery of the product and the value proposition of a program.

scholarly journals Experimental Study on Recycling of Bituminous Aggregate in Cement Concrete

2021 ◽  
Vol 9 (VI) ◽  
pp. 5392-5398
Author(s):  
Manoj Kumar Mishra
Keyword(s):  
Experimental Study ◽  
Road Construction ◽  
Construction Cost ◽  
Recycled Aggregate ◽  
Recycled Aggregates ◽  
Cement Concrete ◽  
Cost Component ◽  
The Road ◽  
Total Construction Cost ◽  
Recycled Material

Recycling of bituminous aggregates in cement concrete has been selected for the present study to determine suitability of recycled material in road construction. This will help in achieving economy in road construction as well as saving on environment degradation in term of reduced mining and less pollution. Construction and maintenance of roads and highways involve millions of tonnes of aggregate. Considering the scarcity of fresh aggregate, replacement of part of the fresh aggregate with recycled aggregate is considered in the present study. Construction of the road is quite cost intensive. Material alone cost more than 60% of the total construction cost, out of which aggregate cost component, is approximately 30%. We can use recycled aggregate in place of fresh aggregate in construction of road and provide economy to the project. For making best use of recycled aggregates, it is essential to study the suitability of the same in various pavement components. In the present study recycled aggregate are used in Granular Sub Base (GSB) and Wet Mix Macadam (WMM).

scholarly journals Current Status of Old Housing for Low-Income Elderly Households in Seoul and Green Remodeling Support Plan: Economic Analysis Considering the Social Cost of Green Remodeling

Buildings ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 29
Author(s):  
Jaemoon Kim ◽  
Seunghoon Nam ◽  
Duhwan Lee
Keyword(s):  
Low Income ◽  
Social Cost ◽  
Net Present Value ◽  
Construction Cost ◽  
Economic Feasibility ◽  
Air Pollutant ◽  
Current Status ◽  
The Government ◽  
Elderly Households ◽  
Total Construction Cost

In this study, the economic feasibility of green remodeling (GR), which could improve the health, safety, and energy of elderly households considering social cost, was analyzed. As a result, the net present value of GR was ‘−10,267 USD (49.7%)’, which was found to be uneconomical compared to the total construction cost (20,981 USD, 100%) despite benefits of energy saving, carbon reduction, and air pollutant reduction. Based on this result, in order to expand GR for low-income elderly households, who cannot afford to perform GR, a GR support measure linked to the currently implemented energy conversion and old-age housing support policies was proposed. It allows the government to perform GR for low-income elderly households with 1/4 of the total construction cost. This result could revitalize GR to reduce greenhouse gas and contribute to housing stability for low-income elderly households who are vulnerable to COVID-19 and climate change.

Evaluation of daqahla wastewater treatment plant, aerated lagoon and ponds system

1995 ◽  
Vol 32 (11) ◽  
pp. 111-119
Author(s):  
F. El Sharkawi ◽  
O. El Sebaie ◽  
A. Hossam ◽  
G. Abdel Kerim
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Rural Areas ◽  
Treatment Plant ◽  
Construction Cost ◽  
Design Flow ◽  
Maintenance Cost ◽  
Organic Loading ◽  
Design Load ◽  
Total Construction Cost

In Egypt, Daqahla wastewater treatment plant (WTP) includes two anaerobic ponds, one aerated lagoon followed by three maturation ponds. It started operation in 1989. This plant is chosen as an example for evaluation as a cost-effective method for wastewater treatment in rural areas. A sanitary survey, laboratory analysis and cost survey were carried out during the period between December 1991 to September 1992. It was found that Daqahla community has high strength wastewater characterised by an average BOD5 of 454 mg/l and average SS of 508 mg/l. Furthermore, it was noticed that Daqahla WTP was loaded with an actual flow (833 m3/d) higher than the design flow (520 m3/d). In addition there was a wide fluctuation in the loads applied to the system. The system was evaluated, and the average removal efficiencies of suspended solids, BOD5 and COD were 92%, 95% and 93% respectively. While there was no removal of ammonia and phosphate, with respect to the efficiency of the anaerobic ponds, it was noticed that about 50% of the organic loading was removed and this is consistent with the literature. In order to upgrade the efficiency of the aerated lagoon and the first maturation pond, the design load and detention time must be taken into consideration. Sludge removal processes must be considered since the first maturation ponds was working as a settling pond. It was noticed that the second and the third maturation ponds were working as facultative ponds. To upgrade their efficiencies, the actual organic loading must not exceed the design load with a minimum retention time of 3 days per pond. The cost survey indicates that the construction cost is 63 LE/cap. Land costs in delta and desert areas are 19 and 2 LE/cap., respectively (acre prices in delta and desert are 40000 and 4000 LE respectively. Total construction cost in the delta is 82 LE/cap., while in the desert, the total construction cost is 65 LE/cap. Furthermore, the operation and maintenance cost is 12 LE/cap. year.

Effective Post-Construction Evaluation Practices for Work Zone Management Strategies

2018 ◽  
Vol 2672 (26) ◽  
pp. 106-113 ◽  
Author(s):  
Michael J. Volk ◽  
Ryan S. Jeong ◽  
Jennifer S. Shane
Keyword(s):  
Continuous Improvement ◽  
Feedback Loop ◽  
Management Strategies ◽  
Monitoring And Evaluation ◽  
Construction Cost ◽  
Development Stage ◽  
Lessons Learned ◽  
Work Zone ◽  
Zone Management ◽  
Total Construction Cost

State departments of transportation (DOTs) invest a significant amount of effort to develop and implement transportation management plans (TMPs) in order to effectively manage the traffic flow of work zones and secure the safety of workers and the traveling public during construction of highway projects. State DOTs typically spend an average 3% to 5% of the total construction cost for TMP development and implementation, but some urban projects, in highly congested areas, may require up to 30% of the total construction cost for this effort. For continuous improvement of TMP development and implementation, it is critically important to monitor the performance of work zone management strategies during construction and evaluate them at the conclusion of construction. However, most state DOTs lack structured policies and/or work processes to ensure the implementation of these important monitoring and evaluation components as part of the TMP. A working feedback loop must be established in the project delivery process to document lessons learned, successes and failures, potential changes to the TMP, and transfer them back to the early TMP development stage. This research extensively reviews existing literature and evaluates the current practices of monitoring and evaluating work zone management strategies. This study identifies and presents effective practices for continuous improvement of TMP development and implementation through creating a working feedback loop.

Economic Evaluation of a New Type of Reinforced Concrete Structure with Fabricated Concrete Tubular Columns

2013 ◽  
Vol 671-674 ◽  
pp. 2999-3002 ◽  
Author(s):  
Hong Yan Ding ◽  
Xi Chen ◽  
Pu Yang Zhang ◽  
Chao He
Keyword(s):  
Construction Cost ◽  
Construction Time ◽  
Time Period ◽  
New Type ◽  
Schedule Time ◽  
Construction Schedule ◽  
Total Project Cost ◽  
Total Project ◽  
Total Column ◽  
Total Construction Cost

A new type of reinforced concrete (RC) structure termed concrete filled fabricated concrete tubular (CFFCT) was economically evaluated. Construction schedule time and construction cost of CFFCT and RC columns were analyzed both in case studies of building structure and bridge structure. A comparative analysis was done on two types of columns by studying on single column and present value of total construction cost. The results show that use of CFFCT shortens the construction schedule time and lowers the total construction cost. The investigation of the multistory building shows that using CFFCT results in an average of 2.31% savings on total project cost, an average of 28.67% savings on total column costs, 25.12% savings on total project time period, and 45.22% savings on columns construction time period. And the investigation of the bridge shows that using CFFCT results in an average of 3.27% savings on total project cost, an average of 46.87% savings on total column costs, 15.68% savings on total project time period, and 29.90% savings on columns construction time period.

scholarly journals Magnitude of Construction Cost and Schedule Overruns in Public Work Projects

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Pramen P. Shrestha ◽  
Leslie A. Burns ◽  
David R. Shields
Keyword(s):  
Short Duration ◽  
Construction Cost ◽  
Public Works ◽  
Anova Test ◽  
Clark County ◽  
Long Duration ◽  
Public Work ◽  
Total Construction Cost

This study analyzed 363 Clark County Department of Public Works (CCDPW) projects to determine construction cost and schedule overruns in various types and sizes of the projects. The sample projects were constructed from 1991 to 2008, with a total construction cost of $1.85 billion, equivalent to 2012 cost. A one-factor ANOVA test was conducted to determine whether construction cost and schedule overruns significantly varied based on types and sizes of the projects. The study showed that large, long-duration projects had significantly higher cost and schedule overruns than smaller, short-duration projects.

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