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All Journal Jurnal Transportasi Prosiding Forum Studi Transportasi Antar Perguruan Tinggi Jurnal Cakrawala Bahari
Elfira Wirza, Elfira
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Aerospace Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Transportation Other

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PENGARUH BELANJA ONLINE TERHADAP PERILAKU PERJALANAN BELANJA Hendra, Yustina Niken Raharina; Wirza, Elfira; Irawan, Muhammad Zudhy
Jurnal Transportasi Vol 15, No 1 (2015)
Publisher : Jurnal Transportasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (399.41 KB)

Abstract

Abstract Searching product information and purchasing goods online cause significant changes in the behavior and characteristics of traveling. Online shopping is expected to reduce shopping trips. The aim of this study is to explore the relationship between online shopping and its effect on the frequency of shopping trips. This study used Structural Equation Modeling (SEM). Data were obtained from questionnaires distributed online. The variables used were 5 exogenous, 3 endogenous latent variables, and 15 observed variables. The results showed that the frequency of searching for information on the internet has a positive influence on a shopping trip and frequency of online shopping. In the meantime, the online shopping frequencies have negative influences on shopping trips. In addition, online shopping is additional and substitution of shopping trips. To optimize the benefits of online shopping, in reducing the frequency of shopping trips to the store, four scenarios were made. The most effective scenario is to improve the quality of the internet network at home, which affects in the reduction of the shopping trip frequency by 53 % from the present level. Key words: online shopping, shopping trip, travel behavior, characteristic of the trip  Abstrak Pencarian informasi produk dan pembelian barang secara online menyebabkan perubahan yang penting dalam perilaku perjalanan dan karakteristik perjalanan seseorang. Belanja online diharapkan dapat mengurangi perjalanan belanja yang dilakukan seseorang. Tujuan penelitian ini adalah untuk menggali hubungan antara belanja online dan pengaruhnya terhadap frekuensi perjalanan berbelanja seseorang. Penelitian ini menggunakan metode Structural Equation Modeling (SEM). Data diperoleh dari kuesioner yang disebarkan secara online. Variabel yang digunakan adalah 5 variabel laten eksogen, 3 variabel laten endogen, serta 15 variabel teramati. Hasil penelitian menunjukkan bahwa frekuensi mencari informasi di internet berpengaruh positif terhadap perjalanan belanja dan frekuensi belanja online. Sedangkan frekuensi belanja online berpengaruh negatif terhadap perjalanan belanja. Selain itu bagi sebagian orang belanja online bersifat tambahan dan sebagian lagi bersifat pengganti. Untuk mengoptimalkan manfaat belanja online, dalam mengurangi frekuensi perjalanan belanja ke toko, dilakukan 4 skenario. Skenario yang paling efektif adalah peningkatan kualitas jaringan internet di rumah, yang memberi dampak pengurangan frekuensi perjalanan belanja sebesar 53 % dari kondisi sekarang. Kata-kata kunci: belanja online, perjalanan belanja, perilaku perjalanan, karakteristik perjalanan
ANALISIS PENGARUH ONLINE SHOPPING TERHADAP PERILAKU PERJALANAN BELANJA MENGGUNAKAN METODE STRUCTURAL EQUATION MODELLING Hendra, Yustina Niken Raharina; Wirza, Elfira; Irawan, Muhammad Zudhy
Prosiding Forum Studi Transportasi Antar Perguruan Tinggi Vol 2 No 2 (2015): Prosiding Forum Studi Transportasi antar Perguruan Tinggi
Publisher : FSTPT Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Searching product informationand buying goods online causes significant changes in travel behavior and shopping trips. Online shopping is expected to reduce shopping trips. The aim of this study is to explore the factors that affect online shopping and its effect on the frequency of shopping trips. This study used structural equation modeling (SEM) for multiplying the relationship between online shopping and shopping trip and the factors influencing it. Data were distributed by online questionnaire and obtained 300 data and 19 data were not used because they never done online shopping. The variables used were 5 variable latent exogenous, 3 variables latent endogenous and 15 variables observed. The result showed that the frequency of searching product information has a positive effect on the frequency of shopping trips and the frequency of online shopping and online shopping has negative effect on shopping trips. These results indicated that, online shopping was additional and substitution of shopping trips. To optimize the benefits of online shopping that reduce the frequency of shopping trips did 4 scenarios. Scenarios were the most effective in reducing the frequency of shopping trips is improving the quality of internet network at home that affected a reduction of 53%from the present level.
PENGARUH BELANJA ONLINE TERHADAP PERILAKU PERJALANAN BELANJA Hendra, Yustina Niken Raharina; Wirza, Elfira; Irawan, Muhammad Zudhy
Jurnal Transportasi Vol 15, No 1 (2015)
Publisher : Jurnal Transportasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (399.41 KB) | DOI: 10.26593/jt.v15i1.1848.%p

Abstract

Abstract Searching product information and purchasing goods online cause significant changes in the behavior and characteristics of traveling. Online shopping is expected to reduce shopping trips. The aim of this study is to explore the relationship between online shopping and its effect on the frequency of shopping trips. This study used Structural Equation Modeling (SEM). Data were obtained from questionnaires distributed online. The variables used were 5 exogenous, 3 endogenous latent variables, and 15 observed variables. The results showed that the frequency of searching for information on the internet has a positive influence on a shopping trip and frequency of online shopping. In the meantime, the online shopping frequencies have negative influences on shopping trips. In addition, online shopping is additional and substitution of shopping trips. To optimize the benefits of online shopping, in reducing the frequency of shopping trips to the store, four scenarios were made. The most effective scenario is to improve the quality of the internet network at home, which affects in the reduction of the shopping trip frequency by 53 % from the present level. Key words: online shopping, shopping trip, travel behavior, characteristic of the trip  Abstrak Pencarian informasi produk dan pembelian barang secara online menyebabkan perubahan yang penting dalam perilaku perjalanan dan karakteristik perjalanan seseorang. Belanja online diharapkan dapat mengurangi perjalanan belanja yang dilakukan seseorang. Tujuan penelitian ini adalah untuk menggali hubungan antara belanja online dan pengaruhnya terhadap frekuensi perjalanan berbelanja seseorang. Penelitian ini menggunakan metode Structural Equation Modeling (SEM). Data diperoleh dari kuesioner yang disebarkan secara online. Variabel yang digunakan adalah 5 variabel laten eksogen, 3 variabel laten endogen, serta 15 variabel teramati. Hasil penelitian menunjukkan bahwa frekuensi mencari informasi di internet berpengaruh positif terhadap perjalanan belanja dan frekuensi belanja online. Sedangkan frekuensi belanja online berpengaruh negatif terhadap perjalanan belanja. Selain itu bagi sebagian orang belanja online bersifat tambahan dan sebagian lagi bersifat pengganti. Untuk mengoptimalkan manfaat belanja online, dalam mengurangi frekuensi perjalanan belanja ke toko, dilakukan 4 skenario. Skenario yang paling efektif adalah peningkatan kualitas jaringan internet di rumah, yang memberi dampak pengurangan frekuensi perjalanan belanja sebesar 53 % dari kondisi sekarang. Kata-kata kunci: belanja online, perjalanan belanja, perilaku perjalanan, karakteristik perjalanan
Analisa Kerusakan Exhaust Valve Mesin Diesel Penggerak Utama di MT. Pancaran Prosperity Agung, Muhammad; Seno, Abdi; Wirza, Elfira; Kurniadi, Dedy
Jurnal Cakrawala Bahari Vol. 6 No. 2 (2023): Jurnal Cakrawala Bahari
Publisher : Politeknik Pelayaran Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70031/jkb.v6i2.67

Abstract

Tujuan dari penelitian ini ialah untuk mengetahui kerusakan pada exhaust valve mesin diesel penggerak utama, bentuk kendala yang dapat ditimbulkan jika tidak ada peawatan pada evhaust valve mesin diesel yang dilaksanakan dikapal MT. Pancaran Prosperity. Sistem kerja exhaust valve mesin diesel tersebut yaitu membuang sisa-sisa pembakaran didalam silinder yang kemudian dibuang melalui katub buang.Jenis penelitian yang dilaksanakan dikapal MT. Pancaran Prosperity adalah penelitian deskriptif kualitatif data diperoleh secara langsung meelalui observasi, wawancaran dan studi pustaka, sedangkan data sekunder yaitu diperoleh langsung dari pihak-pihak yang berkaitan berpa data dikapal. Hasil penelitian ini dilaksanakan dengan tujuan untuk mengetahui faktor dan upaya yang menyebabkan kerusakan exhaust valve mesin diesel penggerak utama dikapal MT. Pancaran Prosperity. Hasil peneliti ini menunjukkan bahwa adalah faktor yang menyebabkan terjadinya kerusakan pada exhaust valve yaitu kebocoran pada exhaust valve, keausan pada spindle valve, keretakan pada spindle valve, penumpukan karbon pada permukaan valve, dan kurangnya perawatan pada exhaust valve.
Pemahaman Peran Pendidikan Pelayaran dalam Meningkatkan Kinerja Keagenan Kapal Nisa, Hanifah Aulia; Wirza, Elfira
Jurnal Cakrawala Bahari Vol. 8 No. 1 (2025): Jurnal Cakrawala Bahari
Publisher : Politeknik Pelayaran Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70031/jkb.v8i1.151

Abstract

The maritime industry requires highly competent human resources to ensure the effectiveness and efficiency of ship agency services. Maritime education plays a crucial role in equipping prospective ship agents not only with technical knowledge and practical skills, but also with essential non-technical competencies such as communication, leadership, adaptability, and problem-solving abilities. This study aims to analyze the role of maritime education in improving the performance of ship agency services, particularly in the context of modern challenges such as digitalization, automation, environmental sustainability, and increasingly complex global trade dynamics. The research applies a qualitative method with a literature review approach, examining scientific articles, institutional reports, and empirical studies published between 2020 and 2025. Findings indicate that maritime education contributes significantly to enhancing the professionalism and performance of ship agents through the integration of updated curricula, practical vocational internships, digital literacy programs, and the inclusion of green shipping awareness in learning processes. Moreover, collaboration between educational institutions, government bodies, and maritime industries is identified as a key driver in aligning educational outcomes with market demands. Educational policies that adapt to technological and environmental transitions are proven to increase employability, service quality, and competitiveness of ship agents. In conclusion, strengthening maritime education not only improves the operational effectiveness of ship agencies but also ensures their resilience and relevance in the rapidly evolving global maritime service sector.
Studi Literatur Tentang Implementasi Kebijakan Pemerintah Dalam Peningkatan Keselamatan Transportasi Laut Agnesi, Sarah Ghea; Wirza, Elfira
Jurnal Cakrawala Bahari Vol. 8 No. 1 (2025): Jurnal Cakrawala Bahari
Publisher : Politeknik Pelayaran Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70031/jkb.v8i1.152

Abstract

Maritime transportation safety is a crucial aspect in supporting maritime efficiency, sustainability, and competitiveness. This study aims to analyze the implementation of government policies to improve maritime transportation safety through a literature review of various journals, international reports, and policy documents over the past five years. The study results indicate that policy effectiveness is influenced by four main factors: regulatory alignment with international standards, institutional effectiveness in supervision, utilization of technology and innovation, and strengthening a safety culture. Although Indonesia has adopted global standards such as SOLAS, MARPOL, and the ISM Code, their implementation still faces challenges such as weak oversight, low compliance, and limited cross sectoral coordination. The study's conclusions emphasize the need for an integrated approach that integrates regulation, technology, and safety culture with the support of evidence-based policies. National and international collaboration is key to realizing a safe maritime transportation system while contributing to sustainable maritime development.
Analisis Olah Gerak Kapal Saat Memasuki Alur Pelayaran Sempit Guna Keselamatan Pelayaran di KM. Kelud Marlina, Berbi; Yanti, Melda; Wirza, Elfira
Jurnal Cakrawala Bahari Vol. 5 No. 2 (2022): Jurnal Cakrawala Bahari
Publisher : Politeknik Pelayaran Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70031/jkb.v5i2.51

Abstract

 Proses olah gerak memasuki suatu alur pelayaran sempit atau sungai dibutuhkan suatu keahlian khusus dan perhatian lebih di banding berlayar di alur bebas. Dalam aturan COLREG’S memberikan aturan khusus yang tercantum dalam aturan 9 mengenai alur pelayaran sempit. Dalam memasuki alur pelayaran sempit kapal selalu mendapatkan resiko bahaya tubrukan dan kandas. Rumusan masalah di penelitian adalah bagaimana kegiatan olah gerak kapal dan faktor apa saja yang menyebabkan terhambatnya di alur pelayaran sempit. Penelitian ini menggunakan metode deskriptif kualitatif dengan mendeskripsikan secara terperinci tentang olah gerak kapal dalam memasuki alur pelayaran sempit di alur pelabuhan Belawan. Teknik pengumpulan data yang digunakan adalah wawancara, observasi dan dokumentasi. Hasil dalam penelitian ini menunjukkan bahwa harus mengetahui faktor-faktor apa saja yang harus di perhatikan ketika ingin melakukan olah gerak di alur pelayaran sempit seperti, pasang surut air laut, lebar dalam alur dari lumpur, arus , dan gelombang. Upaya yang dilakukan dalam olah gerak di alur pelayaran sempit yaitu mengamati dan mempertimbangkan dalamnya alur pelayaran.
Co-Authors Agnesi, Sarah Ghea Dedy Kurniadi Marlina, Berbi Melda Yanti Muhammad Agung Muhammad Zudhy Irawan, Muhammad Zudhy Nisa, Hanifah Aulia Seno, Abdi Yustina Niken Raharina Hendra, Yustina Niken Raharina