Modelling a sorghum logistics as a substitution of wheat to encourage food diversification program and enhance the productivity of local crops

the current diet trend in Indonesia suggests noodles made from wheat as the alternative to rice. This condition leads Indonesia to import the wheat as much as 11.5 million tonnes per year. In fact, Indonesia has become the world's second largest wheat importer and ranks among East Asia's largest staple food importers, mainly for wheat. The distribution of wheat commodity is being hampered due to the conflict between Russia and Ukraine, both of whom are major wheat suppliers in global market. As a solution, President of Indonesia, declaring a means to utilise other crops or implementing food diversification by using sorghum. Sorghum is a grain that able to thrive in tropical and dry areas, such as Indonesia and is possible to substitute that of some wheat. This final project aims to plan door to door sorghum logistic model whenever used as a substitution of wheat in a dry noodle factory located in Sidoarjo Regency by acquiring the lowest cost and a scheduling of sorghum deliveries to fulfil daily demand of the factory itself. The method applied to model the logistic planning is Vehicle Routing Problem (VRP) to determine which scenario giving the most minimum cost. The result of the analysis performed showing that the operational pattern chosen is port to port with voyage charter option obtained a freight cost of Rp17.549.076.988 or a unit cost of Rp558.571 /ton. The scheduling model shows that scenario of warehouse renting in every field is chosen and by doing the sensitivity analysis giving the total cost of Rp11.566.026.812 which includes trucking cost, warehouse cost, and stacking cost. The result shows the overall cost of the sorghum logistic model is Rp29.115.103.800 or equal to Rp926.708 /ton.