How do modern technologies like Building Information Modeling $($BIM$)$ and Geographic Information Systems $($GIS$)$ contribute to enhancing the efficiency and accuracy of these projects? Furthermore, analyze the role of sustainability in civil engineering practices, particularly in reducing the carbon footprint and promoting the use of recyclable materials. What are the long$-$term maintenance strategies employed to ensure the durability and safety of these structures, and how do they address the issues of wear and tear, natural disasters, and increasing traffic demands? Provide a detailed examination of the policies and regulations that govern the construction industry, emphasizing the importance of adhering to safety standards and quality control measures.