This research addresses the challenges of railway infrastructure degradation, focusing on optimizing ballasted track systems to reduce maintenance costs and improve sustainability. The study explores the application of wide sleepers, ranging from 270 mm to 570 mm in width, to enhance ballast performance by increasing the sleeper-ballast contact area. This optimization reduces stress concentrations, minimizes ballast degradation, slows the accumulation of vertical settlement, and extends tamping intervals, resulting in lower maintenance frequency and operational expenses. A multi-scale modeling approach combining the Finite Element Method (FEM) and the Discrete Element Method (DEM) was employed, with laboratory experiments validating the numerical findings. Additionally, alternative maintenance practices, such as side tamping, were suggested to be applied for wide sleeper tracks. LCC analyses reveal that while wide sleepers incur higher initial costs, they yield significant long-term savings, particularly when combined with ballast thickness optimization. By optimizing sleeper geometry, ballast material properties, and loading conditions, the research offers a technically robust and economically viable solution to enhance track durability, reduce infrastructure expenditures, and ensure long-term operational efficiency.