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Journal : Jurnal Teknik Sipil LATERAL

ANALISIS PEMODELAN PEMILIHAN MODA TRANSPORTASI ANTARA SEPEDA MOTOR DENGAN ANGKUTAN UMUM Yules P Zulkarnain; Bahder Djohan; Dimitri Yulianti
LATERAL: Jurnal Teknik Sipil Vol 1 No 1 (2023): Jurnal Teknik Sipil LATERAL
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Tridinanti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52333/lateral.v1i1.137

Abstract

Movement activities can cause the mode selection process. Tridinanti University, as one of the education centers in Palembang city is one of the centers of movement for students. The basis of this research aims to observe the behavior of student motorcycle users with public transportation and analyze whether mode selection is influenced by changes in cost and travel time. This research was conducted with data from the observation approach, questionnaire results, literature review and data processing with the SPSS program in describing the travel situation for the two modes. An overview of the composition of the characteristics of travelers from survey data, it is known that the general characteristics of users in the selection of modes are 81.14% of motorcycle user respondents while 18.86% of public transportation user respondents. Based on gender, male respondents were 57.43% while female respondents were 42.57%. The reasons for choosing modes for motorcycles are time considerations of 47.18% and cost considerations of 15.85% while the reasons for choosing modes for public transportation are cost considerations of 36.36% and time considerations of 13.64%. The mode selection model between motorcycles and public transportation obtained (Usp-Umk) = -0.767-0.011C-0.024T. When the condition of attribute difference is equal to zero, the probability value of motorcycles is greater than the probability of public transportation for the attributes of travel time and cost. The model obtained from regression analysis of all data has the highest R2 price of 0.88% or 88% of the influence of the two attribute factors considered and the remaining 12% is influenced by attributes that have not been considered. In addition to the 2 travel attributes included in this study, several other attributes could also be considered for testing such as safety, convenience, and other influencing factors.
STABILITAS TANAH LEMPUNG MENGGUNAKAN KAPUR DAN FLY ASH DENGAN PENGUJIAN CBR Dimitri Yulianti; Ani Firda; Bahder Djohan; Indra Syahrul Fuad
LATERAL: Jurnal Teknik Sipil Vol 1 No 2 (2023): Jurnal Teknik Sipil LATERAL
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Tridinanti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52333/lateral.v1i2.411

Abstract

Clay soil is formed from the chemical weathering of rock components, resulting in microscopic and submicroscopic particles. Clay soil has low shear strength and high compressibility. Therefore, efforts to improve it are necessary to overcome instability and settlement issues. This paper discusses the influence of CBR values when clay soil is mixed with fly ash and lime. Four proposed compositions are considered using 10% fly ash and 10, 15, 20, and 25% lime contents. The research results show that the proposed compositions have higher CBR values compared to the original CBR of the clay soil. For example, a composition with 10% fly ash and 10% lime has a CBR value of 13.65%, while a composition with 10% fly ash and 25% lime has a CBR value of 8.61%. Nevertheless, both compositions still yield higher CBR values than the original CBR value of the clay soil which was determined as being equal to 7.79%.