As a result of my studies with the contributions of my dear teacher, who was my advisor while preparing the project, Prof. Dr. Soner Haldenbilen, I calculated the benefits in terms of traffic when the number of occupancy in private vehicles increases with the use of the mobile application. In addition, I have determined that it will have serious environmental benefits. In terms of traffic, I determined that the traffic congestion at the peak hours of the day would decrease by around 35%, thus increasing the traffic flow rate. However, I predict that the parking problem in city centers will decrease during the day. As for the environmental benefits, I determined that when 4 people share a single vehicle and travel within the city during the day, approximately 2 tons of carbon emissions will be reduced annually. With the increase in the use of the mobile application, when people share their journeys in the city with their private vehicles, I aim that the deteriorated climate balance will be improved and the carbon footprint will decrease, with the more controlled and balanced use of petroleum, which is a non-renewable energy source, and fuel, which is its product.”