How do maps show transportation networks?

Maps show transportation networks using symbols, colours, and lines to represent different types of transport routes and nodes.

Transportation networks on maps are depicted through a variety of visual elements to make them easily understandable. Roads, railways, and other transport routes are often shown using different types of lines. For example, motorways might be represented by thick, solid lines, while smaller roads could be shown with thinner, dashed lines. Railways are typically illustrated with a series of parallel lines or a single line with cross-hatches.

Colours play a crucial role in distinguishing between different types of transportation. For instance, motorways might be coloured blue, primary roads red, and secondary roads yellow. Railways might be shown in black or grey, while bus routes could be highlighted in green. This use of colour helps users quickly identify the type of transport route they are looking at.

Symbols are also used to represent specific transport-related features. Airports are often marked with an aeroplane symbol, while train stations might be indicated with a small train icon. Bus stops, ferry terminals, and cycle paths each have their own unique symbols to make them easily recognisable.

In addition to these visual elements, maps often include a legend or key that explains what each symbol and colour represents. This is essential for users to accurately interpret the map. Some maps, especially those of urban areas, might also include information about the frequency of services, such as bus or train timetables, to provide a more comprehensive understanding of the transportation network.

Overall, the combination of lines, colours, and symbols allows maps to effectively communicate complex transportation networks in a clear and accessible way.