Transportation engineering is a branch of civil engineering that focuses on the design, construction, and maintenance of transportation systems. This includes roads, bridges, railways, airports, and public transit systems. The goal is to ensure safe, efficient, and sustainable movement of people and goods. Transportation engineers analyze traffic patterns, develop transportation plans, and implement technologies to improve mobility. They work with various stakeholders, including government agencies and urban planners, to create infrastructure that meets the needs of communities while minimizing environmental impact. Key considerations include safety, accessibility, and cost-effectiveness.