Neural Network for the Standard Unit Price of the Building Area

Fachrurrazi, Fachrurrazi; Husin, Saiful; Tripoli,; Mubarak, Mubarak

doi:10.1016/j.proeng.2017.01.336

Cited by 13 publications

(9 citation statements)

References 16 publications

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“…A number of studies have been conducted by examining issues related to unit price analysis of building (Tas & Yaman, 2005;Mubarak, 2010;Mubarak & Tripoli, 2011;Stoy, Pollalis, &Dursun, 2012;Fachrurrazi et al, 2017). The studies are focused on building unit price modeling using a number of variables.…”

Section: Introductionmentioning

confidence: 99%

The Unit Price Implication of Reinforcement Usage in Tie Beam Reinforced Concrete Construction

Mubarak

Tripoli

Nurisra

2018

Aceh Int. J. Sci. Technol

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-The construction cost as one of the most important project resources should be planned and used efficiently. Cost estimation can be analyzed using standard of unit price analysis according to Indonesian National Standard (SNI 7394:2008). Related to unit price analysis for tie beam reinforced concrete, the standard mentioned a specific analysis that combine all materials requirement include reinforcement (unit price analysis No. 6.29). In such analysis, reinforcement requirement is stated as much as 200 kg/m 3 of concrete. Considering the diversity of dimension design of building structure caused by geographical location and building function, a further study required to response these problems. This research is aimed to provide information to what extent the unit price analysis related to tie beam reinforced concrete can be applied in cost estimating. Research process initiated with secondary data collection to building construction located in zone 10 and 15 based on earthquake zone map (SNI 1726(SNI :2012

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Section: Introductionmentioning

confidence: 99%

The Unit Price Implication of Reinforcement Usage in Tie Beam Reinforced Concrete Construction

Mubarak

Tripoli

Nurisra

2018

Aceh Int. J. Sci. Technol

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“…However, MMRE has the weakness while compared across datasets [14], [15]. Other proposed models for the software accuracy are Stepwise Regression [16], [17], Rule Induction [18], [19], Case-Based Reasoning [20][21][22][23], Artificial Neural Nets [24][25][26].…”

Section: Accuracy Implementation In Other Researchmentioning

confidence: 99%

The End User Requirement for Project Management Software Accuracy

Fachrurrazi¹

2018

IJECE

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This research explains the relationship between the end user requirement and accuracy of PMS (Project Management Software). The research aims are to analyze the PMS accuracy and measuring the probability of PMS accuracy in achieving ±1% of the end user requirement. The bias statistical method will be used to prove the PMS accuracy that based on the hypothesis testing. The result indicates the PMS is still accurate to be implemented in Aceh-Indonesia area projects that using the SNI (National Indonesia Standard as current method) with the accuracy index of ±7.5%. The achievement probability of reaching the end user requirement is still low of ±21.77%. In case of the PMS, the low achievement of the end user requirement is not only caused by the low accuracy of the PMS but also caused by the amount of variability error, which is influenced by the amount of variation of the project activity. In this study, we confirm that it is necessary to reconcile both conditions between the PMS accuracy and the end user requirements.

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“…The number of the duration required to complete the project activity can be estimated using the formula (2). Where, D represents the duration of the activity; Q as the quantity of activity; and P as the production rate per day (PRPD) of activity.…”

Section: State Of the Artmentioning

confidence: 99%

“…The normality of the activity duration may differ from one to another contractor even in the same project region/municipal. It is due to many factors/variables that affect each other, especially when estimating duration, which includes risk factor scheduling [1], unpredictable factors as a geographical factor [2], weather/climate [3], [4], etc. This condition provides an overview that the duration of each activity may change stochastically as a result of uncertainty-factors.…”

Section: Introductionmentioning

confidence: 99%

Estimating the normal duration using normal Production Rate per Day (PRPD) of project activity

et al. 2018

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A Project Estimator cannot claim that his/her estimated duration is better than others. They can determine the reasonable duration based on deterministic and probabilistic factors affecting the duration and then specify how to achieve it. This condition provides an overview that the activity duration changeable stochastically as a result of uncertainty-factors. However, we have a presumption that the activities duration will be normally distributed based on variation of its production rate per day (PRPD). The purpose of this study are (i) estimating the normal duration of the project activities using PRPD; and (ii) conducting the hypothesis testing for the PRPD normality of the project activities in South of Aceh. Hypothesis testing toward six-activities from 50 projects in South of Aceh will be used to achieve research objectives. Result shows PRPD normally distributed with skewness value still falling inside tolerance range of -1/+1. We argue that the normal duration of activity can be estimated more quickly involving its normal PRPD. An estimator does not need to predict what the factors affecting the duration estimation, especially in the bidding/tender process. They only need the normal PRPD as a standard value, to estimate, to assess and to verify the normality level of actual duration for the purpose of project decision.

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Neural Network for the Standard Unit Price of the Building Area

Cited by 13 publications

References 16 publications

The Unit Price Implication of Reinforcement Usage in Tie Beam Reinforced Concrete Construction

The Unit Price Implication of Reinforcement Usage in Tie Beam Reinforced Concrete Construction

The End User Requirement for Project Management Software Accuracy

Estimating the normal duration using normal Production Rate per Day (PRPD) of project activity

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