#Train Acceleration/Deceleration Formula?

1 messages · Page 1 of 1 (latest)

quaint yew
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I'm planning to make my Gleba science with max freshness, one of the things I'm testing at the moment is the fastest method of transporting items. Not throughput, speed.

I've cooked up some pretty cursed setups (if you can get your hands on debug items in sandbox you could theoretically use the crashed spaceship as an even faster cargo-wagon-inserter "belt") but one of the ones I am going to test is lining up a ton of trains for maximum acceleration and using a single cargo wagon to unload. Problem is I can't find the acceleration and deceleration formulas to find the optimal number of trains mathematically... I found an old website that does the math for you, but I doesn't contain the actual formula... Anybody have it or know how to find it?

warm coral
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it's, really, really fucked up

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I don't think a faster method exists

quaint yew
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red inserters in this configuration are disappointingly almost as fast as your method but not quite

image.png
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trains can't be faster than silo (see second image) so I don't need the formula anymore tbh, max speed trains cannot out speed the silo bus, even if they're magicly starting and stopping in 0 ticks

quaint yew
sly lintel
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Is there not a distance where this method is not faster than trains?

neat wasp
quaint yew
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Yep, even giving it time to run around a loop (so it starts full speed), and starting the silos a tick late with the first insertion being a yellow one it’s still slower over a 300 belt distance

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Assuming I didn’t fuck up somewhere and trains don’t cap at 356.4 km/h or something like that, I don’t remember

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Adding more locomotives helped but it still capped at that speed

neat wasp
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Wowsers, that's impressive lol

wanton gorge
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https://wiki.factorio.com/Locomotive#Maximum_speed

Official Factorio Wiki
Locomotive

The Locomotive is the engine for movement of trains over track. Trains are useful for moving large amounts of items over large distances. With the Space Age expansion, locomotives can also utilize elevated rails, which are rails built off of a rail ramp, allowing trains to freely drive over obstacles on the ground.

dense obsidian
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To original question of how to get the most fresh result on Gleba science - I think you need your farms as close to your science production as possible. Once you get that overgrowth soil / landfill you can move them closer. You certainly do not want to buffer the fruit, so no belt stacking, putting it to chest or wagon. While it might move faster it also spoils more. In the science itself you probably want direct insertion between machines which make mash and jelly for bioflux for science packs. Ideally you want perfect match on machine ratios. Nutrient freshness is not that important because eggs always come out fresh. You might also want to consider the quality which increases value of science packs.

wanton gorge
dense obsidian
quaint yew
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Yea honestly this is more of a side tidbit, I may end up doing it anyways cuz it’s funny…

fossil crest
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how much bot speed research is needed to beat this?

fossil crest
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another thing to consider racing 🦆

stiff glen
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Rocket up to space, and then recall down at landing pad. Covers infinite distance on a surface with a constant time but limited max throughput.

sly lintel
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limited max throughput?

fossil crest
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potentially using bots can up it by quite a bit though

sly lintel
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if you set up an efficient network very small only connect to the landing pad, very few would ever reach that limit

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with max unloading inserters too, I don't think anyone if any would come close to that limit

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even the hub it self with just common stack inserters is quite a lot

tight willow
quaint yew
warm coral
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Is the topic rn hub max throughput?
Before bots its 15 stacked green belts FYI

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261k items per minute
We have space agri electro metallic cryo and prometh sciences
I count agri twice to make up for spoilage so 8 sciences

This leads to raw science max throughput being 27k spm before bots

wanton gorge
warm coral
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What do you even mean by that?
Speed not throughput for something that doesn't have movement?

wanton gorge
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What do you mean items don't move?

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They weren't talking about hub to be clear, I realised that was likely where you got confused by my message

fossil crest
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the topic was how fast can you make items travel

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ie 1 legendary pistol, from point A, to point B