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All Journal Rekayasa Teknik Sipil Jurnal Teknologi dan Manajemen
Saraswati, Nina
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Civil Engineering, Building, Construction & Architecture Engineering

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DEVELOPING A METHOD FOR MEASURING THE QUALITY OF A SAMPLE BASED TRIP LENGTH DISTRIBUTION FOR URBAN TRIP Suprayitno, Hitapriya; Saraswati, Nina; Fajrinia, Citto Pacama
Rekayasa Teknik Sipil Vol 3, No 3/REKAT/16 (2016): Wisuda ke-87 Periode 3 Tahun 2016
Publisher : Rekayasa Teknik Sipil

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Abstract

Trip Length Distribution is an important part of Transportation Modelling. This distribution is normally gotten from a sample. Thus, the Quality of the Sample Based Distribution must be able to be measured. This paper present the result of an attempt to develop a method to measure this quality. The research gave the following result. Basic common measure related to the sampling is a maximum acceptable error at a certain minimum confidence level. It has been found that the Quality Measuring Method can not incorporate the error, since it deals with a distribution pattern in which there is no single parameter value and the error probability density function is not yet known. The proposed Sample Quality Measuring Method is by calculating its Confidence Level based on the Goodness of Fit Statistical Inference method, by using a c2 test. The Confidence Level is equal to  P(c2,u);  where  c2 = S (Oi ? Ei)2/ Ei and u = k ? r ? 1. Keywords : transport modelling, trip length distribution, sample, sample quality.
Analysis of Use Formwork and Slipform Pavers in Making Concrete Barrier on Toll Road Project Aditama, Akhmad Taufik; Saraswati, Nina; Satriawan, Puthut
Jurnal Teknologi dan Manajemen Vol 7, No 1 (2026): January (In Progress)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2026.v7i1.8308

Abstract

The making of concrete barrier on the KAPB Toll Road Project Package II Section 1 still uses manual formwork. The use of manual formwork is considered easier to implement, but less efficient because concrete barrier in the form of prototypes should be done practically. Innovation in the field of construction has created Slipform Paver to print concrete barrier. Slipform pavers are believed to be able to produce better productivity than manual formwork. This study analyzed productivity, work duration and costs in the use of molding concrete barrier as an effort to accelerate work. Observations on the making of concrete barrier were carried out in one cycle time from land preparation to finishing the work. Concrete barrier made with manual formwork use readymix concrete FC 20 slump + 10 cm, while slipform pavers use readymix concrete FC 20 slump 4-5 10 cm. The results of the study showed that in making concrete barrier the use of slipform pavers can accelerate the completion of work by up to 46.01% and save costs by 14.3% compared to using manual formwork. In working on all concrete barrier using manual formwork can be done, but requires additional resources so that it can be completed on time.
Co-Authors Akhmad Taufik Aditama Fajrinia, Citto Pacama Hitapriya Suprayitno, Hitapriya Satriawan, Puthut