Week 6 Tutorial: Bidirectional Rail Line

Design a three-lane rail line with a bidirectional middle lane, and verify it under simulated traffic from both directions.

31 August 2026

Before the tutorial#

Bring last week’s save. You’ll need rail, signals and at least two trains to test with.

In the tutorial#

Build the three-lane line, then run trains from both directions on the middle lane at once and confirm nothing deadlocks.

Afterwards#

Next week’s groups will need someone to own exactly this — rail network rules are one of the roles Week 7 asks a team to allocate.