How to represent graphically airways and routes? I need to write a piece of software in order to display on a map flight routes and airways. I would therefore like to know if there is a standard way of displaying this kind of information (in particular the kind of icons used for displaying waypoints, departure and arrival airports and so forth).

For example, by Googling a bit I have the chart shown below:



Could someone point me to any additional sources of information that I could use.

I am particularly interested in the icons/shapes to use as well as the kind of relevant information to show. The idea would be that the map is recognizable at once by a professional pilot and provides him all the relevant information.
ICAO Annex 4 contains guidelines for creating aeronautical charts.

The type of information to be shown and required accuracy of information is defined in the different chapters, depending on the type of chart. You will probably be interested in chapter 2 and chapter 7/8.

Symbology and standard colors are explained in appendix 2 and 3.