Is it possible to add "time" as additional dimension?

[anetz89]

First of all, very amazing project! Interesting how a simple graph model can answer such complex questions without any further implementation needed.

Do you think it would be possible to add another dimension to the search: time?
Like providing information about the departures/arrivals of every line on every station and to allow queries like:

• when do I arrive if I depart at XX at YY and I want to travel to ZZ?
• when do I have to depart from YY when I want to arrive at XX in ZZ?

this would also imply to allow some (static?) time for interchanges (e.g. 5 minutes). maybe the model has to be expanded than (station -has-> platform -connects-> platform).

Thanks for your input, I'm interested what you are thinking about this :)

[IgorRozani]

Thank you so much for your interest in my project =)

I agree with you, time would be a really good measure and would completely change the results. Currently the project is only considering the path with fewer stations and this modeling has a downside, if you consider that every transportation method has a different speed and the distance between stations vary, the path with less stations sometimes will be slower than one that uses more stations but the transport is faster. For example, if you get a path using only 2 stations by bus, it will be slower than a path with 4 stations but only using the metro.

About schedules, SP metro and train doesn't have a fixed schedule, they work with time periods, a train/metro comes every X minutes, and the amount of time varies according to the lines, week days and part of day and I couldn't find a guide for that. Another possibility that I tried to implement was the distance in kilometers or time between stations but I couldn't find that either.

If you have any idea on how to overcome that or even if you want to do some change in the project, feel free to answer here or create a PR.