Highway engineering is the process of designing, building and maintaining roads and highways. Toengineering a highway, engineers must consider things like road safety for both drivers and pedestrians, the needs of the surrounding area, and the environment. For example, when designing the shape of the highway, engineers need to think about how steep or curved the road needs to be and how wide it needs to be to make it safe and comfortable for drivers. They also have to think about different parts of the road, like the shoulders and curbs, which should be designed to help drivers slow down or stop in emergencies. They also have to think about the landscape of the area and how to manage rainwater drainage. Lastly, they need to think about how the highway will affect the environment and make sure it won't cause damage.