The map shows a modern attempt to repeat what Demetrios did in his time: trying to find places in a real landscape fitting the ones mentioned in the Iliad. The present achievement is about both, the Catalogue of the Ships and the Catalogue of the Trojans. Demetrios was more attached to his homeland and focused on the Trojans and their allies.
This internet page is however also a way of mixing information from ancient sources, like Strabo or Demetrios himself, with a modern stage of the places mentioned. The goal of such undertakings seems double. It is a quest of some readers to find the toponyms mentioned in a text in a real landscape and to give therefore more weight to the story. By starting with the places themselves, it helps to better know ancient geographers or scholars by analysing what was available for them.