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I like your idea. If you dig around Rory Sutherlands YouTube appearances he talks about how train routers fall down by always looking for the fastest route, where he would prefer the nicest, often cheaper and slightly slower. He has a fair amount to say on the subject so it is a bit of a goldmine.

I sent you some feedback on a routing failure because I didn't want to post exactly where I live here.

I think you need pricing. Works offline is cool, but why not pull in the pricing if people are online? Train fares are so variable depending on time of day, especially if they go via London. I could have a trip that could be £300 cheaper by taking a 30 minute longer trip that avoids London. I need pricing to get my best journey.

by marcusdev1 days ago|

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My thoughts exactly! Sometimes I don't mind travelling a little longer, or ending up at a nearby station, if it's a nicer journey.

Thank you for the feedback, pricing is definitely next on my to do list if I can make it work.

by vectorcrumb2 days ago|

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This sounds very nice! A slightly adjacent question: have you discovered any providers that can recommend train journeys based on price? Sort of like the explore feature you find on sites like Google Flights, Ryanair and Flixbus. Sometimes when the wanderlust hits I've tried searching around for cheap train tickets, but it isn't simple using sites likes DB/OEBB/SBB/SNCF/etc

by marcusdev2 days ago|

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https://raileasy.co.uk / https://trainsplit.com is the most flexible existing service I've found, but even that doesn't give you an "anywhere" option.

I'm looking at how to add price data to railraptor, but it might mean sacrificing the fully-offline capability... once I have prices it should absolutely be possible to build a filter along the lines of "find me the cheapest popular destinations that are at least 50 miles away".

by svenmakes2 days ago|

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Great that it stores the entire timetable in only 6MB(?) of storage.

Some feedback: I don't think it can route through London as it isn't aware of tube connections between stations? And the classic stress test of Penzance to Thurso is too long for the routing algorithm, but I imagine that's beyond scope?

Pricing would make this a super useful tool!

by marcusdev1 days ago|

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Thanks for the feedback. I was missing the "Fixed Links" data, which covers any transfers that aren't part of the normal rail network (e.g. walking/bus/tube). I've just added that, so the tube routes via London should work for you now.

The routeing data is pretty complex - there are layers on layers of data files and rules to cover all the edge cases and weird stations/routes. It's been really fun to dig into it.

I'll look into adding more possible connections to see if it can find the Penzance route - I'd be curious to know if anyone has ever actually completed the 27 hour journey!

by whiplash4512 days ago|

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This sounds awesome. Have you checked how it fares against trainline? A quick demo would be very nice.

by boutell2 days ago|

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I love this! Dijkstra's Algorithm is always a fun time

by marcusdev2 days ago|

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I do love Disjkstra :) this actually uses a modified version of the "Raptor" algorithm for public transport routing (hence the name!): https://www.microsoft.com/en-us/research/wp-content/uploads/...