<p>
In this chapter we will improve the efficiency of our industrial chains, transporting <em>passengers</em>, <em>mail</em> and <em>electrical energy</em>.
</p>
<p>
{scr}
</p>
<p>
{txtst_01}Step A</em> - Electrical Production and Consumption<br/>
{step_01}
</p>
<p>
{txtst_02}Step B</em> - Trucks to carry Coal<br/>
{step_02}
</p>
<p>
{txtst_03}Step C</em> - Connecting the Electrical System<br/>
{step_03}
</p>
<p>
{txtst_04}Step D</em> -  Delivering the Mail<br/>
{step_04}
</p>