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Transport belts

2015-07-20T20:43:17Z

B: Undo revision 120071 by Softcake (talk)

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[[File:Mpstark-WSgK35P.gif|right]] [[File:Mpstark-5ceWt8I.gif|right]] [[File:Mpstark-KVmf6LZ.gif|right]]

'''Transport belts''' are items which are used to transport items from one place to another. There are three types of transport belts, each with their own properties.

==Types==
{| class="wikitable"
|-
! scope="col" | Type
! scope="col" | Speed ([[Tile|tiles]] per [[Game-second]])
! scope="col" | Required [[Research|technologies]]
|-
| {{imagelink|basic-transport-belt|Basic transport belt}} || 1.875 || none
|-
| {{imagelink|fast-transport-belt|Fast transport belt}} || 3.75 || [[Logistics 2]]
|-
| {{imagelink|express-transport-belt|Express transport belt}} || 5.625 || [[Logistics 3]]
|}

==Basic==
'''Task''': make a steady flow of items from your [[Mining drill]]s to the [[Furnace]]s.

* Select a belt by taking a [[Storages/Stack]] from your [[Inventory]]
* Rotate the belt by pressing "R" until it faces the right direction.
* Place the belt (by default left mouse)
* Move in the direction you want the belt to go, and hold down the left mouse button: the belt continues to be placed.

===In-place-replacement===
If you have placed a belt in the wrong direction you don't need to dismantle it.
* Make sure your game-hand is empty and then simply press 'R' over the piece and it will change on the spot.
* This in-place-replacement is also possible with other belt-types. Pick up a faster belt type and place it over the current: The belt is picked up and replaced with that in your hand.
* Many more things can be in-place-replaced: Poles, Chests, Inserters, Assemblies, Furnaces...

==Advanced==
* For a more advanced introduction into the belt mechanics see the [[Belt transport system]] page.
* For information about the finer aspects of handling belts try the page on [[Transport belts/Physics|Transport Belt physics]].

[[File:transport-belt-two-lines-2.jpg|thumb|256px]]

===Turns and bends ===
[[Transport belts/Turns|Turns]] will always keep the alignment of items. Be aware; the inner side of the turn moves items at half the speed, meaning turns are likely to be bottlenecks. Using faster belts at the bend is recommended to maintain capacity of your network.

[[File:transport-belt-two-lines-1.jpg|thumb|256px]]

===Belt Lanes: using two sides===
Belts have [[Transport belts/Belt lane|two lanes]] that can be used for transporting. This allows for either a double flow of one material, or with some careful setup, transporting two different materials on the same belt.

[[File:transport-belt-two-lines-3.jpg|thumb|256px]]

===Speed, Density and Throughput: About finding the bottlenecks===
This is a mistake often made - even by advanced players. But first we need to introduce some definitions:

* '''Speed
: How fast does a belt move. This influences of course the throughput. The speed is easy to calculate: [[Basic transport belt]] is the slowest, the [[Fast transport belt]] is twice as fast as the basic and the [[Express transport belt ]] is 3x the speed of basic.
* '''Density
: How tight are the items put on the belts. See [[Transport belts/Optimizing]] for tips, how to keep the density as tight as possible. See [[Transport belts/Physics]] about how dense you can put the items on the belts.
* '''Throughput
: This is speed * density. The maximum density on all belts are nearly equal (indeed the density on faster belts is lower, see [[Transport belts/Physics|Transport Belt physics]]).

This formula
Throughput = Speed * density
gives you two opportunities to enhance the throughput:

* More speed
* more density.

More speed is expensive (see [[Transport_belts/Optimizing#Parallel Belts|optimizing with parallel belts]]), so more density is in many cases much easier to obtain. The way is in most cases, to find the bottleneck.

The bottleneck can be seen quite easy, if there is a part of a belt, where the items sometimes stop or don't move (or don't move fast) at maximum density and suddenly they come to a point, where this "stop and go" releases itself and they run free and are not so tight on the belt. This is in most cases the exact place, where you need to optimize your belts. It doesn't make sense to optimize much before or after this point, because if you fix it, you will find the next bottleneck anywhere else.

===Side inserts (Crossings)===
When belts join together at a t-junction, items are [[Transport belts/Side insert|inserted from the side]] and they stay on the side of the belt they came from.

=== Lane Mixer (Mixing both sides of a belt into one) ===

Mixing of two lanes into one is depended on the fact, that you cannot really controll, how the mixing with the splitter works:

Without usage of underground belts:
:[[File:XYorwSk.png|300px]]

With usage of underground belts:
:[[File:Ss+(2015-06-14+at+10.54.34).jpg|300px]]
:[[File:LaneMixer.png|300px]]

A third type of mixing is by using the different speeds of the belts. A basic belt as input and put this into an express belt.

vv
vv
vv <-- this belt needs to be basic belt!
>>>>>>>>>>>>
^
| This belt needs to be express belt!

All other belts needs to be fast belts!

The result is, that if the output belt is not jammed, then the both input lanes are guaranteed to be mixed 1:1.

==See also==
* [[Transport network]]
** [[Splitters]]
** [[Underground belts]]
* [[Transport]]
* [[Crafting network]]
* [[Logistic network]]
* [http://www.factorioforums.com/forum/viewtopic.php?f=8&t=3370 Intersection with 4 belts from every side]
* [[Transport belts/Transport other entities]]: even the car can be transported with belts.
* [[Transport belts/Why do belts use no energy?|Why do belts not require power?]]: Some reasons...
* [[Transport belts/Speedup Walking]]: Walk/run in belt direction add the speed of the belt to your own.
* [[Transport belts/Defense]]: Use the Express belt to slow down the enemies
* [[Transport belts/Physics]]
* [[Transport belts/Turns]]
* [[Transport belts/Blocking items]]
* [[Transport belts/Side insert]]
* [[Transport belts/Optimizing|Transport belt Optimising]]
* [[Transport belts/Side insert]]
* [http://www.factorioforums.com/forum/viewtopic.php?f=5&t=6914&p=56388#p56388 Throughput and bottlenecks].
* [http://www.factorioforums.com/forum/viewtopic.php?f=18&t=5316&start=20#p54495 Speed, Distance, Throughput, Compression]
* [http://www.factorioforums.com/forum/viewtopic.php?f=5&t=7221 Tutorial for Belt Speed, Density and Throughput]
* [[Transport belts/Belt lane]] for more about usage of the two lanes of a belt.
* [[Transport belts/Optimizing|Transport belt Optimising]]
* [[Transport belts/Turns]] for details about turns.
* [[Transport belts/Optimizing| Transport belt Optimising]] about other ways to speed up this bottleneck.
* [http://www.factorioforums.com/forum/viewtopic.php?f=5&t=6801&p=54025#p54003 Testing fast belt corners] (interesting video)

{{MachineNav}}

[[Category:Transport network]]
[[Category:Belt transport system]]

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2014-08-11T20:27:29Z

B: Apostrophe error

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Pollution

2014-08-04T12:30:46Z

B: "Cloud To Butt"? Real mature.

[[File:Pollution.png|400px|thumb|Example of ingame pollution (red squares) in the map]]
Pollution is represented as an abstract "cloud", calculated [[Chunk|per chunk]] and visible on the minimap and [[Map]], when [[Alternative view]] is on (default [[Game-Options/Keyboard-Defaults#Alt|Alt-Key]]).

[[Crafting network|It is produced by many buildings]] involved in processing items and spreads outwards at a steady rate.

[[Pollution Production| Here are some charts to do with Pollution/De-Pollution.]]

== Native life ==
* Pollution attracts [[Biter|Biters]] to your factory. [[Biter|Biters]] who find themselves in a polluted area will attempt to reach the source of pollution and destroy it.
* [[Enemies#Spawner|Spawners]] absorb pollution, but this increases their evolution-factor.

== Pollution dissipation==
* slowly (0.6 units per tick) at every [[Chunk]] (32x32) of map it covers. So the more the pollution spreads, the more is absorbed.
* [[Tree|Trees]] also absorb some pollution (See [[Pollution Production#De-polluters]]).
* [[Enemies#Spawner|Spawners]] absorb some pollution, but this will increase [[Difficulty#In freeplay|difficulty]] by raising the [[Lua/Game#evolutionfactor|Evolution factor]].
* In certain [[Mods]] it is possible to build devices or trees which reduce pollution.

== Modules ==
[[Module|Modules]] that list "+x% pollution" increase pollution multiplier, not a flat pollution rate. Final pollution value is (pollution multiplier * energy usage multiplier * base pollution), meaning heavily boosted buildings are likely to account for most of the pollution produced in a factory.

== See also ==
* [[Pollution Production]]
* [[Crafting network]]
* [[Module|Modules]]
* [[Enemies]]