Every company that has a desire to expand its working area or can be termed an expansion plan is an indication that the company has the will to continue and develop as well as proof that the company has good business prospects in the future. There are many things that can be done in an expansion effort for the company, including expanding the product marketing area. The expansion of the product marketing area will make the company face the problem of determining the route of product delivery so that it reaches all customers who are expected to pass the shortest mileage. In this studied, we examined the routes that the Hangout Catering Company had to take in order to obtain the best touring to reach the ten places that were expansion targets with three operating scenarios based on the number of vehicles used. The solution to this problem is obtained with the help of Lingo software.

Plastic waste that has low quality and economic value at its end of life may affect the plastic recyclers' production rate in the raw material aspect. Moreover, limited availability of good raw materials may lead to low economic product value and affect the producers' profit margin. This research aims to prove the impact of material value conservation (MVC) design principle implementation on the flexible plastic packaging on sustainability of plastic recycling plants based on economic, environmental, and social factors. It is found that the repetitive implementation of MVC design principles on plastic packaging may increase the economic sustainability of recycling plants through increasing income, which analyzed using feasibility study method. The increased margin was obtained through increasing availability of good quality of plastic waste to be produced continuously. The environmental sustainability impact obtained through the reduction of extraction of non-renewable raw materials which produce plastic original, unproductive land due to waste accumulation, and reduce the amount of plastic waste thrown into the ocean. Meanwhile, social sustainability impact obtained through the increasing employment absorption and earnings of local communities.