Transport belt

Transport belt is the basic belt item used to move items on two parallel lanes. Its in-game mechanical properties define how many items it can carry, how fast items travel along it, and how densely items can be placed on the belt.

The transport belt has a maximum throughput of 15 items per game-second for both lanes combined, which corresponds to 7.5 items per game-second per lane. Item movement speed on the belt is 1.875 tiles per game-second. The belt supports a maximum item density of 8 items per tile. No research is required to unlock the transport belt.

• Throughput: 15 items/s (two lanes combined) → 7.5 items/s per lane; this is the aggregate rate you can expect when both lanes are fully saturated.
• Speed: 1.875 tiles/s; use this value when calculating travel times and synchronizing item arrivals over distances.
• Density: 8 items per tile; this limits how many items can occupy the same tile of belt and affects how closely items can be packed before flow is impeded.
• Technology: none required; the transport belt is available without research.

For more detailed behavior (collision, acceleration, spacing, end-of-belt interactions) consult the game's transport belt physics documentation.