Passenger demand refers to the number of people wanting to travel from one place to another, typically using modes of transportation like airplanes, trains, or buses. This demand can fluctuate based on various factors, including seasonality, economic conditions, and travel trends. For example, during holidays, passenger demand often increases as more people plan trips to visit family or go on vacation. Understanding passenger demand is crucial for transportation companies, as it helps them manage schedules, pricing, and capacity. By analyzing data on travel patterns and customer preferences, companies can better meet the needs of travelers and optimize their services.