
I should probably start repairing railroads going northward on the West side of the Lake now so that those guys will have more beans, bullets, and bandaids.
Here's the Smolensk area:

I should continue repairing to the East here I think.
Here's the Bryansk area:

Here one rail goes SouthEast and is short, and another goes NorthEast and is the main line for the attack.
Here's the Kiev area:

In the Kiev area we've already got quite a bit done and only need to keep repairing to the SouthEast until the major battle starts for Kiev.
Here's the Odessa area:

This is most of the reason the Odessa attack is on hold, no supplies for it. As soon as more rail repair dudes can be flooded into this area the quicker the rails will deliver the goods for the soldiers to have what they need to do what they do best.