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"Penelitian ini membahas permasalahan pengelolaan pengangkutan sampah di DLHK Kota Depok. Provinsi Jawa Barat merupakan penghasil timbunan sampah organik tertinggi di Indonesia, dimana wilayah pada provinsi tersebut yaitu Kota Depok merupakan penghasil timbunan sampah organik tertinggi dengan total timbunan sampah organik, 60% dari 594 ribu ton sampah pada tahun 2021. Telah terdapat fasilitas pengolahan sampah organik di Kota Depok yaitu Unit Pengolahan Sampah (UPS), namun alokasi sampah yang diterima masih rendah. Tingginya angka timbunan sampah organik dan rendahnya alokasi sampah ke UPS menunjukan keadaan tersebut harus di imbangi dengan baiknya pelayanan pengangkutan keseluruhan sampah yang ada di suatu wilayah. Penelitian ini bertujuan untuk mendapatkan rute kendaraan untuk distribusi pengangkutan sampah dengan meminimalkan waktu tempuh yang optimal untuk distribusi tersebut dan menambahkan UPS sebagai fasilitas perantara. Metode yang digunakan pada penelitian ini menggunakan metode vehicle routing problem with Intermediate Facilities. Hasil dari penelitian ini diperoleh 15 rute untuk 15 unit kendaraan pengangkut sampah untuk kedua sesi rute, dengan total timbunan sampah 22 ton/hari untuk rute sesi 1 dan 19,8 ton/hari untuk rute sesi 2. Sedangkan dengan total waktu operasional 2433,15 menit untuk sesi 1 dan 2496,8 menit untuk sesi 2.

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This study discusses the problem of waste transportation management in DLHK Depok City. West Java Province is the highest organic waste producer in Indonesia. Whereas Depok City is the highest organic waste producer, with a total pile of organic waste is 60% of 594.000 tons of waste in 2021. There are already organic waste processing facilities in Depok City, that is Waste Processing Unit (UPS), but the waste allocation received by UPS is still low. The high number of piles of organic waste and the low allocation of waste to UPS show that this situation must be balanced with excellent waste transportation services. This study aims to obtain vehicle routes for the distribution of waste transportation by minimizing the optimal travel time for the distribution and considering UPS as an intermediary facility. The method used in this research is the Vehicle Routing Problem with Intermediate Facilities method. The results of this study obtained 15 routes for 15 units of waste transport vehicles for both sessions, with a total waste pile of 22 tons/day for session 1 and 19.8 tons/day for session 2. Meanwhile, with a total operational time of 2433.15 minutes for session 1 and 2496.8 minutes for session 2."

"Vehicle routing problem (VRP) merupakan aplikasi dari optimasi kombinatorial untuk menentukan sejumlah rute yang diawali dan diakhiri di suatu tempat. Permasalahan pengelolaan pengangkutan sampah merupakan bagian yang sangat penting dalam menjaga estetika dan kenyamanan suatu kota maupun wilayah. Provinsi Sumatera Utara sendiri merupakan salah satu provinsi di Indonesia penghasil timbunan sampah, dimana wilayah pada provinsi tersebut yang memiliki rasio produksi sampah harian per penduduk tertinggi adalah di Kota Pematangsiantar sebanyak 0,83 kg/hari per penduduk yang tentunya akan mengakibatkan tingginya angka timbunan sampah harian. Tingginya angka timbunan sampah tentunya harus di imbangi dengan baiknya pelayanan pengangkutan keseluruhan sampah yang ada di suatu wilayah. Penelitian ini bertujuan untuk mendapatkan rute kendaraan untuk distribusi pengangkutan sampah dengan meminimalkan waktu tempuh yang optimal untuk distribusi tersebut. Dengan menggunakan vehicle routing problem diperoleh 43 rute untuk 34 unit kendaraan pengangkut sampah, dengan total timbunan sampah 183,1 m3/hari dan total waktu operasional 4608 menit

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The Vehicle Routing Problem is an application of combinatorial optimization to determine a number of routes that start and end at one place. The problem of managing waste transportation is a very important part in maintaining the aesthetics and comfort of a city or region. North Sumatra Province itself is one of the provinces in Indonesia that produces waste piles, where the area in the province that has the highest daily waste production ratio per resident is Pematangsiantar City as much as 0.83 kg/day per resident which of course will result in high daily waste accumulation rates. The high number of landfills must of course be balanced with good transportation services for the entire waste in an area. This study aims to obtain vehicle routes for the distribution of waste transportation by minimizing the optimal travel time for the distribution. By using the Vehicle Routing Problem, 43 routes were obtained for 34 units of garbage transporting vehicles, with a total waste pile of 183.1 m3/day and a total operational time of 4608 minutes"

"Peranan jasa konstruksi yang cukup tinggi dalam pembangunan di Indonesia mengakibatkan tingginya tingkat aktifitas yang dilakukan. Tingkat aktifitas yang tinggi telah menimbulkan dampak berupa besarnya limbah konstruksi ataupun perubuhan (Construction & Demolition waste) yang dihasilkan. Di negara maju hampir 15-30 % limbah padat yang dibuang ke tempat pembuangan (landfill) adalah limbah konstruksi.Penanganan limbah ini di kota Jakarta bukan menjadi prioritas utama. Hal ini dapat diindikasikan dari upaya pengelolaan limbah konstruksi dan perubuhan yang bersifat spontan dan belum adanya perangkat hukum peraturan pengelolaan lingkungan hidup tentang limbah ini.Kegiatan pengelolaan yang bersifat spontan ini menimbulkan suatu fenomena menarik yaitu timbulnya fenomena tukang puing. Hal ini menimbulkan pertanyaan mengenai apa, siapa dan mengapa mereka menjadi tukang puing limbah konstruksi dan perubuhan sebagai suatu upaya pengelolaan limbah konstruksi dan perubuhan di Indonesia khususnya Jakarta.Dalam penelitian ini bertujuan untuk dapat mengindentifikasikan peran tukang puing sebagai salah satu bagian dari pengelolaan limbah konstruksi dan perubuhan. Peran tukang puing ini dapat diperjelas dengan melihat aktifitas yang terjadi, pengaruh tukang puing terhadap aliran limbah konstruksi dan hubungan tukang puing dengan proyek konstruksi serta jaringan kerja antar tukang puing tersebut. Hubungan tersebut akan dapat menggambarkan mengenai pengelolaan limbah konstruksi dan perubuhan di Jakarta yang dikelola oleh tukang puing.Dari hasil wawancara dan pengamatan di lapangan didapatkan bahwa peranan dan aktivitas tukang puing sangat penting dalam pengelolaan limbah konstruksi dan perubuhan. Dimulai dari proses penghasilan limbah, penanganan limbah, pengumpulan limbah, pengangkutan limbah serta pengolahan limbah. Peranan dan aktifitas inilah yang menyebabkan hampir semua limbah perubuhan dapat bernilai guna kembali dan hampir sama sekali tidak dihasilkan limbah yang akan dibuang ke tempat pembuangan (disposal)."

"[ABSTRAKTujuan program intervensi ini adalah untuk menciptakan perilaku mendaur ulangsampah pada siswa SMP Negeri 5 Tambun Selatan. Theory of Planned Behaviormerupakan teori yang digunakan peneliti. Hasil studi baseline menunjukkanvariabel sikap yang paling signifikan mempengaruhi intensi mendaur ulangsampah (β= 0,295, p<0,05). Intervensi dilakukan menggunakan melaluipelatihan, pesan persuasif, insentif dan manajemen komunitas. Penelitian inimenggunakan design kuasi eksperimen. Partisipan dalam intervensi adalahsiswa SMP Negeri 5 Tambun Selatan Bekasi, sejumlah 15 partisipan yangdilakukan selama 2 (dua) hari selama 6 jam per hari di lokasi SMP Negeri 5Tambun Selatan. Pengukuran dampak intervensi dilakukan dengan uji hasilpre-test dan post-test dengan uji paired samples t test menunjukkan adanyaperubahan sikap yang positif (nilai 0,839, p<0,05), membuktikan bahwa programintervensi dapat membuat perilaku pengelola sampah siswa SMP melalui mendaurulang sampah di sekolah dan terbentuknya komunitas Recycle Trash Community.

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ABSTRACTThe objective of this intervention program was to create a recycle waste behaviorin students of SMP Negeri 5 South Tambun. Theory of Planned Behavior is atheory that is used by researchers. The results of the baseline study showed thatthe most significant variable affecting the attitude of the intention to recycle waste(β = 0.295, p <0.05). Interventions performed using through training, persuasivemessages, incentives and community management. This study used a quasiexperimentaldesign. Participants in this intervention were 15 participants fromthe students of SMP Negeri 5 South Tambun Bekasi. Interventions conductedover two (2) days for 6 hours per day at the site of SMP Negeri 5 South Tambun.Measuring the impact of interventions carried out by test results of pre-test andpost-test with paired samples t test showed a positive change of attitude (value0.839, p <0.05), proves that intervention programs can make waste managementbehavior of junior high school students through recycling rubbish at school andcommunity formation Recycle trash community.;The objective of this intervention program was to create a recycle waste behaviorin students of SMP Negeri 5 South Tambun. Theory of Planned Behavior is atheory that is used by researchers. The results of the baseline study showed thatthe most significant variable affecting the attitude of the intention to recycle waste(β = 0.295, p <0.05). Interventions performed using through training, persuasivemessages, incentives and community management. This study used a quasiexperimentaldesign. Participants in this intervention were 15 participants fromthe students of SMP Negeri 5 South Tambun Bekasi. Interventions conductedover two (2) days for 6 hours per day at the site of SMP Negeri 5 South Tambun.Measuring the impact of interventions carried out by test results of pre-test andpost-test with paired samples t test showed a positive change of attitude (value0.839, p <0.05), proves that intervention programs can make waste managementbehavior of junior high school students through recycling rubbish at school andcommunity formation Recycle trash community.;The objective of this intervention program was to create a recycle waste behaviorin students of SMP Negeri 5 South Tambun. Theory of Planned Behavior is atheory that is used by researchers. The results of the baseline study showed thatthe most significant variable affecting the attitude of the intention to recycle waste(β = 0.295, p <0.05). Interventions performed using through training, persuasivemessages, incentives and community management. This study used a quasiexperimentaldesign. Participants in this intervention were 15 participants fromthe students of SMP Negeri 5 South Tambun Bekasi. Interventions conductedover two (2) days for 6 hours per day at the site of SMP Negeri 5 South Tambun.Measuring the impact of interventions carried out by test results of pre-test andpost-test with paired samples t test showed a positive change of attitude (value0.839, p <0.05), proves that intervention programs can make waste managementbehavior of junior high school students through recycling rubbish at school andcommunity formation Recycle trash community.;The objective of this intervention program was to create a recycle waste behaviorin students of SMP Negeri 5 South Tambun. Theory of Planned Behavior is atheory that is used by researchers. The results of the baseline study showed thatthe most significant variable affecting the attitude of the intention to recycle waste(β = 0.295, p <0.05). Interventions performed using through training, persuasivemessages, incentives and community management. This study used a quasiexperimentaldesign. Participants in this intervention were 15 participants fromthe students of SMP Negeri 5 South Tambun Bekasi. Interventions conductedover two (2) days for 6 hours per day at the site of SMP Negeri 5 South Tambun.Measuring the impact of interventions carried out by test results of pre-test andpost-test with paired samples t test showed a positive change of attitude (value0.839, p <0.05), proves that intervention programs can make waste managementbehavior of junior high school students through recycling rubbish at school andcommunity formation Recycle trash community.;The objective of this intervention program was to create a recycle waste behaviorin students of SMP Negeri 5 South Tambun. Theory of Planned Behavior is atheory that is used by researchers. The results of the baseline study showed thatthe most significant variable affecting the attitude of the intention to recycle waste(β = 0.295, p <0.05). Interventions performed using through training, persuasivemessages, incentives and community management. This study used a quasiexperimentaldesign. Participants in this intervention were 15 participants fromthe students of SMP Negeri 5 South Tambun Bekasi. Interventions conductedover two (2) days for 6 hours per day at the site of SMP Negeri 5 South Tambun.Measuring the impact of interventions carried out by test results of pre-test andpost-test with paired samples t test showed a positive change of attitude (value0.839, p <0.05), proves that intervention programs can make waste managementbehavior of junior high school students through recycling rubbish at school andcommunity formation Recycle trash community.;The objective of this intervention program was to create a recycle waste behaviorin students of SMP Negeri 5 South Tambun. Theory of Planned Behavior is atheory that is used by researchers. The results of the baseline study showed thatthe most significant variable affecting the attitude of the intention to recycle waste(β = 0.295, p <0.05). Interventions performed using through training, persuasivemessages, incentives and community management. This study used a quasiexperimentaldesign. Participants in this intervention were 15 participants fromthe students of SMP Negeri 5 South Tambun Bekasi. Interventions conductedover two (2) days for 6 hours per day at the site of SMP Negeri 5 South Tambun.Measuring the impact of interventions carried out by test results of pre-test andpost-test with paired samples t test showed a positive change of attitude (value0.839, p <0.05), proves that intervention programs can make waste managementbehavior of junior high school students through recycling rubbish at school andcommunity formation Recycle trash community.;The objective of this intervention program was to create a recycle waste behaviorin students of SMP Negeri 5 South Tambun. Theory of Planned Behavior is atheory that is used by researchers. The results of the baseline study showed thatthe most significant variable affecting the attitude of the intention to recycle waste(β = 0.295, p <0.05). Interventions performed using through training, persuasivemessages, incentives and community management. This study used a quasiexperimentaldesign. Participants in this intervention were 15 participants fromthe students of SMP Negeri 5 South Tambun Bekasi. Interventions conductedover two (2) days for 6 hours per day at the site of SMP Negeri 5 South Tambun.Measuring the impact of interventions carried out by test results of pre-test andpost-test with paired samples t test showed a positive change of attitude (value0.839, p <0.05), proves that intervention programs can make waste managementbehavior of junior high school students through recycling rubbish at school andcommunity formation Recycle trash community., The objective of this intervention program was to create a recycle waste behaviorin students of SMP Negeri 5 South Tambun. Theory of Planned Behavior is atheory that is used by researchers. The results of the baseline study showed thatthe most significant variable affecting the attitude of the intention to recycle waste(β = 0.295, p <0.05). Interventions performed using through training, persuasivemessages, incentives and community management. This study used a quasiexperimentaldesign. Participants in this intervention were 15 participants fromthe students of SMP Negeri 5 South Tambun Bekasi. Interventions conductedover two (2) days for 6 hours per day at the site of SMP Negeri 5 South Tambun.Measuring the impact of interventions carried out by test results of pre-test andpost-test with paired samples t test showed a positive change of attitude (value0.839, p <0.05), proves that intervention programs can make waste managementbehavior of junior high school students through recycling rubbish at school andcommunity formation Recycle trash community.]"

"Salah satu alternatif terobosan untuk mengatasi masalah sampah perkotaan adalah suatu model pengolahan sampah dlm suatu konsep zero waste sampah perkotaan.Dlm mempersiapkan pengadaan peralatan dan material utk sistem pengolahan sampah ini dibuat suatu perencanaan tata letak yg baik dengan mempertimbangkan masuka-masukan yg tept.Tujuan penelitian ini adalah terbentuknya rancangan tata letak sistem pengolaha sampah kapasitas 24 mdengan jenis pengolahan pengkomposan sampah organik di kelurahan Tebet Barat,Jakarta Selatan. Disamping itu juga ingin diketahui kebutuhan operator dlm sistem , disebabkan oleh adanya pembatasan jumlah operator digunakan yaitu sebanyak lima orang. Proses perancangan tata letak dilakukan secara bertahap yaitu perancangan aliran material, perhitungan keburuhan mesin, analisis hubungan keterkaitan antar kegiatan,perhitungan kebutuhan area, alokasi area dan penyusunan tataletak.Perancangan tata etak dilakukan dengan dengan pola aliran U, dan jenis jenis tataletak product layout.Dari analisa perbandingan simulasi sistem alternatif dengan variasi jumalh resources, diketahui bahwa kebutuhan operatorberdasarkan utilitas operator yg baik adalah lima resources,dimana sistem tdk overload dan dapat berjalan dengan baik."

"Konsumsi susu sapi di Indonesia diproyeksikan akan meningkat hingga 1146,2 ton di tahun 2023 atau meningkat sekitar 3% persen tiap tahunnya. Meningkatnya permintaan atau konsumsi susu sapi di Indonesia tersebut tidak diiringi oleh meningkatnya produksi susu segar dalam negeri. Rasio produksi atas konsumsi di Indonesia yang hanya 22% mencerminkan bahwa hanya sebagian kecil dari ketersediaan susu di Indonesia yang merupakan produksi dalam negeri, 80% sisanya diimpor dari luar. Masalah yang dihadapi perusahaan produk olahan susu dalam negeri tidak hanya belum memenuhi kebutuhan susu dalam negeri, namun juga dari segi distribusi ke pelanggan. PT. X sebagai salah satu perusahaan produksi olahan susu di DKI Jakarta, masih menggunakan sistem pengiriman langsung yang dilakukan secara manual atau belum menggunakan model optimasi. Selain itu, PT. X juga mengalami kendala seperti terbatasnya kendaraan, waktu pendistribusian yang terbatas, serta lokasi pelanggan yang berjauhan. Pada studi kasus ini, peneliti menggunakan pendekatan Vehicle Routing Problem – Time Windows (VRP-TW) dengan tujuan menghasilkan rute yang memiliki total jarak dan waktu perjalanan terpendek dalam memenuhi permintaan pelanggan serta menggunakan kendaraan yang seminimal mungkin, sehingga dapat meminimalkan biaya distribusi. Perubahan yang dihasilkan dari perhitungan optimasi dapat menurunkan jarak tempuh kendaraan hingga 18% dan menghasilkan total penghematan hingga Rp. 67.212.566 pada ketiga skenario yang telah ditentukan.

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Consumption of cow's milk in Indonesia is projected to increase to 1146.2 tons in 2023 or an increase of about 3% percent annually. The increasing demand or consumption of cow's milk in Indonesia is not accompanied by increased domestic fresh milk production. The production-to-consumption ratio in Indonesia which is only 22% reflects that only a small portion of the availability of milk in Indonesia is domestic production, the remaining 80% is imported. The problems faced by domestic dairy products companies have not only not met the needs of domestic milk, but also in terms of distribution to customers. PT. X as one of the dairy production companies in DKI Jakarta still uses a direct shipping system that is done manually or has not used the optimization model. In addition, PT. X also experienced obstacles such as limited vehicles, limited distribution time, and the location of customers which are far from each other. In this case study, researchers used the Vehicle Routing Problem–Time Windows (VRP-TW) approach with the goal of generating routes that have the shortest total distance and travel time in meeting customer demand and using vehicles to a minimum, thus minimizing distribution costs. Changes resulting from optimization calculations can reduce vehicle mileage by up to 18% and result in total savings of up to Rp. 67,212,566 in all three predetermined scenarios."

"Vehicle Routing Problem With Transshipment Facilities VRPTF adalah salah satu dari berbagai macam Vehicle Routing Problem VRP yang masih jarang untuk dibahas. Sejalan dengan isu mengenai logistik yang selalu menjadi sorotan bagi negara maju maupun berkembang. Penelitian ini bertujuan untuk membandingkan apakah pendekatan VRPTF cocok diterapkan pada distribusi logistik di Indonesia. Seperti yang kita ketahui Indonesia adalah salah satu negara kepulauan, sehingga untuk mendistribusikan barang antarpulau membutuhkan biaya yang cukup tinggi. Tujuan dari penelitian ini adalah memberikan perbandingan biaya dengan menggunakan metode VRPTF, metode Hub-dan-Spoke, dan metode Capacitated VRP, sehingga negara-negara yang mungkin mengalami kasus serupa dapat menerapkan metode ini dan mendapatkan model rute yang optimal. Penelitian ini dilakukan dengan mengambil studi kasus dari perusahaan yang menghasilkan produk non-perishable tidak mudah kadaluarsa/rusak dan membuat model dengan menggunakan Open Solver dan program VBA, keduanya di Excel. Penelitian ini menunjukkan bahwa metode VRPTF memberikan biaya optimal dibandingkan metode CVRP.

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Vehicle Routing Problem with Transshipment Facilities VRPTF is one of many various kind of Vehicle Routing Problem VRP which is still slightly discussed. As Logistic is always been an issue for both developed and developing country, this research aims to compare whether or not VRPTF is suitable applied to logistic distribution in Indonesia.

As we know Indonesia is one of archipelagic countries, so distributing goods across the island requires high cost. The purpose of this paper is giving cost comparison by using VRPTF method, Hub and Spoke method, and Capacitated VRP method, so countries that may experience similar case can apply this method and get the optimize route model.

This study was conducted by taking case study from company that produce non perishable product and generate the model using Open Solver and VBA program, both in Excel. This research indicates that VRPTF method giving optimize cost than other methods. "

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Saat ini Indonesia menjadi menjadi pasar terbesar bagi industri cat di wilayah Asia Tenggara sejak periode tahun 2021, dengan tingkat urbanisasi sebesar 57,3%. Kondisi backlog rumah di Indonesia saat ini tergolong masih sangat tinggi, yaitu mencapai 11,4 juta berdasarkan kepemilikan rumah, adapun rasio angka pernikahan baru yang tinggi serta pertumbuhan middle class menyebabkan jumlah permintaan rumah serta kepemilikan properti pun semakin bertambah. Tren positif peningkatan jumlah permintaan rumah dan kepemilikan properti ini menjadi suatu kabar baik bagi banyak industri yang menyokong keberlangsungan pembangunan infrastruktur, termasuk industri cat. PT X merupakan salah satu perusahaan produsen cat yang memiliki fasilitas cabang (depot distributor) di Kota Cirebon yang masih menggunakan sistem pengiriman langsung dan belum menggunakan model optimasi, sehingga seringkali proses distribusi melebihi dari waktu operasional yang tersedia. Selain itu, PT X Cirebon juga mengalami kendala seperti terbatasnya jumlah kendaraan, waktu pendistribusian yang terbatas, serta lokasi pelanggan yang tersebar dan berjauhan. Dalam penelitian ini, peneliti menggunakan pendekatan Vehicle Routing Problem (VRP) dengan tujuan menghasilkan rute distribusi yang memiliki total jarak dan waktu perjalanan terpendek dalam memenuhi permintaan pelanggan serta menggunakan kendaraan yang seminimal mungkin, sehingga dapat meminimalkan biaya transportasi secara keseluruhan. Hasil dari perhitungan optimasi yang dijalankan yaitu terdapat beberapa perubahan; diantaranya dapat menurunkan jarak tempuh dan waktu tempuh kendaraan masing-masing hingga 23% dan 22%, serta menghasilkan total penghematan hingga Rp3.682.311 pada beberapa skenario yang telah ditentukan.

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Currently, Indonesia is the largest market for the paint industry in the Southeast Asia region since 2021, with an urbanization rate of 57.3%. The condition of the home backlog in Indonesia is currently still very high, reaching 11.4 million based on home ownership, while the ratio of the high number of new marriages and the growth of the middle class has caused the number of demand for houses and property ownership to increase. This positive trend of increasing the number of demand for houses and property ownership is good news for many industries that support the sustainability of infrastructure development, including the paint industry. PT X is one of the paint manufacturing companies that has a branch facility (distributor depot) in Cirebon City that still uses a direct delivery system and has not used an optimization model, so often the distribution process exceeds the available operational time. In addition, PT X Cirebon also experienced obstacles such as the limited number of vehicles, limited distribution time, and customer locations that scattered and far apart. In this study, researchers used a Vehicle Routing Problem (VRP) approach with the aim of producing distribution routes that have the shortest total distance and travel time in meeting customer demand and using vehicles to a minimum, so as to minimize overall transportation costs. The result of the optimization calculations carried out is that there are several changes; among other things, it can reduce the mileage and travel time of vehicles by 23% and 22%, respectively, and result in total savings of up to Rp3,682,311 in several predetermined scenarios.
 

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"Vehicle Routing Problem (VRP) adalah sebuah permasalahan optimasi kombinatoris yang menentukan sekumpulan rute yang bermula dan berakhir pada sebuah depot, sehingga semua kendala dapat dipenuhi dan biaya yang dikeluarkan dapat diminimalkan. Permasalahan ini sering dihadapi oleh perusahaan yang proses bisnisnya sangat bergantung pada transportasi produknya. CV Safari Mitra Cemerlang adalah sebuah perusahaan di bidang produksi dan distribusi produk parfum dan produk laundry care di Kota Makassar, Indonesia. Di Kota Makassar, perusahaan ini melayani 14 pelanggan tetap yang setiap minggunya perlu dikunjungi untuk mengantarkan produk pesanannya. Penelitian ini bertujuan untuk mendapatkan rute distribusi dengan jarak tempuh minimal pada proses distribusi tersebut. Dengan memodelkan permasalahan VRP tersebut ke dalam bentuk Mixed Integer Linear Programming (MILP) dan mengoptimalkannya menggunakan perangkat lunak LINGO Solver, diperoleh rute perjalanan yang terbagi ke dalam dua perjalanan dengan jarak tempuh 70,29 km.

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Vehicle Routing Problem (VRP) is a combinatorial optimization problem that determines a set of routes which start and end in a depot, such that all constraints are satisfied, and the cost is minimized. This type of problem often faced by companies whose business processes are highly dependent on the transportation of their products. CV Safari Mitra Cemerlang is a company based in Makassar, Indonesia, that specializes in perfume and laundry care products production and distribution. It caters 14 regular customers across the city of Makassar which needs to be visited every week to transport their orders. This study aims to obtain a distribution route with a minimum distance for that distribution process. By modelling the VRP problem into a Mixed Integer Linear Programming (MILP) form and optimizing it with the help of LINGO Solver software, this study obtained the optimal route which is divided into two trips with a total distance of 70.29 km."

"Vehicle routing problem (VRP) adalah jenis pendekatan yang bertujuan untuk memilih jalur rute pendistribusian ke beberapa area lokasi pelanggan menggunakan sejumlah armada transportasi. Pendekatan ini akan diapadukan dengan metode Mix Integer Linear Programming (MILP) dan bantuan Software LINGO 18.0 untuk menyelesaikan permasalahan rute pendistribusian tabung gas LPG 3 Kg di PT Wanita Satria. Saat ini, PT Wanita Satria diberi tanggung jawab untuk mendistribusikan tabung LPG 3 kg ke 19 titik lokasi Pangkalan yang berada di sekitaran kecamatan Jagakarsa, Pasar Minggu, dan Pancoran. Pengiriman saat ini dirasa masih belum optimal karena hanya berdasarkan pengalaman supir dan kernet, terbukti dengan teroptimalisasinya waktu pengiriman dari yang sebelumnya membutuhkan waktu sebesar 361,9 menit menjadi 276,9 menit atau berkurang sekitar 23,5% dengan kondisi jumlah tabung yang dikirimkan sama, yakni 514 tabung dengan melewati 3 rute. Selanjutnya juga dilakukan hasil analisis sensitivitas untuk mengetahui apakah ada dampak dari perubahan parameter permintaan. Dari perubahan tersebut didaptkan hasil adanya perubahan rute, jumlah rute, namun tidak diperlukan tambahan kendaraan bahkan ketika ada kenaikan permintaan sampai 50%.

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Vehicle routing problem (VRP) is a type of approach that aims to choose distribution routes to several customer location areas using a number of transportation fleets. This approach will be combined with the Mix Integer Linear Programming (MILP) method and the help of LINGO 18.0 Software to solve the problem of the distribution route for 3 Kg LPG gas cylinders at PT Wanita Satria. Currently, PT Wanita Satria is responsible for distributing 3 kg LPG cylinders to 19 Pangkalan locations around Jagakarsa, Pasar Minggu, and Pancoran sub-districts. The current delivery is still not optimal because it is only based on the experience of the driver and the assistant, as evidenced by the optimization of the delivery time from what previously took 361.9 minutes to 276.9 minutes or decreased by about 23.5% with the same condition that the number of tubes sent was the same. namely 514 tubes by passing 3 routes. Furthermore, the results of sensitivity analysis were also carried out to find out whether there was an impact from changes in demand parameters. From these changes, the results obtained are changes in routes, the number of routes, but no additional vehicles are needed even when there is an increase in demand of up to 50%."