I added a new image for Factorio v 0.12.0:

https://imgur.com/TLGD3xZ

This should work in 0.11 as well.

I also reduced the size of the oil by remove one chemical plant here is the calculation for that:

7,5 petroleum/s is necessary but the perfect ratio (5/7/10) can make 9 p/s so you can reduce ...

Insertes only put items to one side of the underground belts.

https://imgur.com/BJzpwDt

All 4 work but they only put items on 1 (left) side of the underground belt.

If a inserter try to pickup a item from the back of a splitter it's just can't do that from every positoon:

https://imgur.com/hKF49AL

The right one work fine but the left just cant work.

I am not tested all of the 4 direction I just found this one randomly.

I do some testing with 17/13 Steam setup, turn each steam engine in to 13 different electric network with 1 radar and 7 smal pumps in a loop.
(17 boiler * 390kW = 13 steam engine * 510kW = 5070kW) sadly it not work for test I added one extra boiler (picture about that later)

http://imgur.com ...

When you have a train which is started but standing in a station because it don't have any other station to go (I sent them to park), other trains count it as a normal train not as a stopped which can cause jams when other trains stop behind tham.

Here I have a picture about the situation one train ...

So, I fixed it as well, my fix is similar to OlliPe design.

For lower tear you can cut the red or green part it will work fine with yellow inserters at the science assemblers (where 0.8 item/s is enought).

For oil you need 1.25 battery/s → 2.5 sulfuric acid/s → 2.5 sulfur/s → 3.75 petroleum/s ...

Thanks, repaired, it was the oil line and I forgot to reconncet at the last modification.

So here is my compact design for all 4 science:

https://imgur.com/QjDryL4

txt for blueprint string:

https://www.dropbox.com/s/1l266cwowef0mq0/allinonescience.txt?dl=0

Old one for v.0.11:

http://imgur.com/YH9CTwT

blueprint string v.0.11:

https://www.dropbox.com/s/quiixynea1qg7m4/Science ...

I just experianced the same bug I think:

https://www.dropbox.com/s/ycgfzshrera5d56/Factorio%20_0.11.21_Train_Bug%20.png?dl=0

If I pick up or put down a track / signal / train stop it is immediately refresh the signal and fix the problem.
I think this was caused by saving while the signal was ...

I just updated to 0.11.20 from 0.11.19 and my production rate is decresed. For example I had 1.3k/m advanced circuit production but after the update I only about 900/m, although it seem better to me because I have 16 level 3 assembler with 4 pruductivity and 8 beacon each of them with 2 speed module ...