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Engelbertha N.B. Seran
Program Studi Teknik Sipil, Fakultas Teknik, Universitas Katolik Widya Mandira, Jl. San Juan No.1 Penfui, Kupang, NTT, Indonesia
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Engineering Environmental Science Transportation

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PENGGUNAAN BAHAN ADITIF SEBAGAI BAHAN STABILISASI TANAH UNTUK LAPISAN PONDASI JALAN Mauritius Ildo Rivendi Naikofi; Egidius Kalogo; Rikardus Sabon Doni; Engelbertha N.B. Seran
Eternitas: Jurnal Teknik Sipil Vol 1 No 2 (2022): ETERNITAS : Jurnal Teknik Sipil, Vol 1, No 2 April 2022
Publisher : Program Studi Teknik Sipil Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/eternitas.v1i2.1594

Abstract

East Nusa Tenggara (NTT) is an archipelagic area with various characteristics of rock layers, most of which are dominated by limestone/coral. The condition of the dominance of coral rocks and the very minimal availability of sea transportation facilities greatly affect the rate of development in the area. Access to materials is quite difficult which results in material scarcity and the lack of equipment availability is a common condition in several areas in NTT. In the construction of road infrastructure, the problem of supplying aggregate according to specifications has its own difficulties in providing it. The absence of natural quarries for material supply is possible in the NTT region, especially on small islands, so there is a need for new breakthroughs to utilize existing materials at construction sites as foundation layers for road pavement so that the subgrade stabilization method as a foundation layer has a positive impact, especially minimize the gap in infrastructure development between one inhabited island and another in the NTT region
ANALISIS PENGARUH RASIO KENDARAAN BELOK KANAN TERHADAP KINERJA SIMPANG TAK BERSINYAL Christinna Odilla Saba; Don Gaspar Noesaku da Costa; Engelbertha N.B. Seran
Eternitas: Jurnal Teknik Sipil Vol 1 No 2 (2022): ETERNITAS : Jurnal Teknik Sipil, Vol 1, No 2 April 2022
Publisher : Program Studi Teknik Sipil Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/eternitas.v1i2.1598

Abstract

The ratio of right-turning vehicles is very influential on delays and queuing opportunities at unsignalized intersections. This study will compare the effect of the right turn ratio on the performance of the intersection at two locations with different right turn ratio characteristics, namely at the Timor Raya - Nangka street intersection which has a high right turn volume and the Samratulangi Raya - Samratulangi I street intersection with a low right turn volume. The standard of intersection performance is according to the 1997 MKJI guidelines. At the intersection of Timor Raya - Nangka street, the results show that the ratio of right-turning vehicles affects the performance of unsignaled intersections, with a degree of saturation (DS) = 1.246 > 0.75, delay (D) = 57 ,80 sec/smp > 25 sec/smp and queue probability (QP)= 63,6 %-130,4 % > 50 %. The effect of the right turn ratio on the degree of saturation (DS) = 97.53%, delay (D) = 72.12% and queue probability (QP) = 96.15%-95.37% with level of service F (very bad). On Samratulangi Raya - Samratulangi I street intersiction, the results show that the right turn ratio has no effect on the performance of unsignalized intersections, with a degree of saturation (DS) = 0.586 < 0.75, delay (D) = 9.85 sec/smp < 25 sec/smp and queue probability (QP)= 14,5 %-30,9 % < 50 % with level of service B (good). The solution at the Timor Raya - Nangka road intersection is to eliminate side barriers, widen the road, install right-turning signs and regulate one-way traffic.
Co-Authors Christinna Odilla Saba Don Gaspar Noesaku da Costa Egidius Kalogo Mauritius Ildo Rivendi Naikofi Rikardus Sabon Doni