When the first transport truck overturned into the valley, I was busy laying the third conveyor belt.

The first night of the colony came quickly. Outside the dome is a red alien desert, and in the dome, there is only my breathing and the low sound of the machine. I need to transport the iron from the north mining area to the south factory and then send it to the east residential area. It sounds simple, but there are two mountains on the map.

I’ll try to use the conveyor belt first. The silver belt meandered out of the mine, like a gluttonous snake. But it is too slow, and the ore moves lazily on it. When the first piece of iron arrived, there were three demand alarms in the residential area — there was a shortage of beds in the hospital, a shortage of tables in the canteen, and no swing for children.

I have to buy a car. Small transport vehicles are flexible but loaded less, and heavy trucks can load but consume electricity. Where does electricity come from? Solar panels will strike on sandstorms. I adjusted the route back and forth between the power plant and the mine. I watched the first car stagger on the road. When I turned the corner, the wheels brushed against the edge of the cliff. I held my breath. It passed safely, but half an hour later, the second car overturned in the same curve. It’s not a design problem, but the driver is tired — I forgot to set up a rest stop.

The traffic jam occurred on the afternoon of the third day. The parts of the West District need to be sent to the central laboratory, but the main intersection is crowded with cars delivering food to the residential area. The red and yellow lights were blocked, and the horn (I set) kept ringing. The research in the laboratory stopped, and the scientists strode at the door. I demolished half of the intersection and built a simple overpass. When the first car climbed up the slope smoothly, the efficiency bar of the whole colony quietly rose.

What fascinates me most is the night. Most of the vehicles are suspended, and only the maintenance robots glide quietly on the track. I took a closer look and watched the light on and off on the balcony of a residence, and watched the nurse on the night shift in the hospital drinking coffee in the lounge. These villains can’t speak, but their rhythm of life is completely tied to every track and every signal light I have laid.

There was a failure of the water circulation system. The water purification plant is in the northwest, the water storage tank is in the southeast, and the middle pipeline has to pass through a radiation area. If the maintenance car dares not enter, the robot will be short-circuited. I temporarily changed three transportation lines, wrapped the water pipe with insulation material, and let the convoy relay transportation. Watching the storage of the water tank slowly crawling back to the safety line from 5%, a smiling face symbol appeared on the head of a little man who was washing clothes - it may be the first time he used hot water in three days.

At the end of the game, my colony is not big, but the transportation network is as dense as blood vessels. Light vehicles are speeding on the viaduct, heavy trucks are roaring in the underground tunnels, and drones are shuttled between the domes. There is no epic plot, just to make sure that the synthetic protein for breakfast can be delivered to each plate before seven o’clock, and the coffee of the night shift workers will not be out of stock.

After exiting, I looked at the traffic in the city outside the window. The red light stops, the green light goes, and the overpass coils like a maze. Somewhere there may be a broken water pipe, a truck breaking down, and a late subway, which makes the whole morning chaotic. We live in a logistics network designed by countless people, but we rarely think about it: every time we deliver on time, there is someone behind it, in front of a certain screen, whether to add an extra signal light for a certain curve, thinking for a long time.

_InfraSpace_ didn’t let me conquer the starry sky. It made me learn to listen on the red planet — listen to the friction of the conveyor belt, listen to the low-power alarm, and listen to the steady and uniform breathing of the whole colony in the middle of the night. The sound of breathing is steadily supported by every road paved by my own hands.