Bus Traffic Fever Level 4 Answer & Walkthrough Solution

Level 4 is the first board where careful use of the holding slots matters as much as matching the passenger colors.

Quick answer

Clear the green and pink buses on top, move brown buses into the holding slots, then uncover teal and yellow. When the middle is clear, finish the brown and pink buses you parked earlier.

Step-by-step solution

1. Open the top layer: Tap the green bus on the left, then the pink bus beside it.
2. Create space: Move the brown buses into the empty holding slots at the top. This exposes the teal and yellow buses buried in the middle.
3. Clear the middle: Tap the teal (light blue) bus, then the yellow bus once their routes are open.
4. Keep matching the front line: Prioritize moving a blocking bus into a holding slot whenever it gives you access to the color currently needed by the passengers.
5. Final cleanup: When the middle is empty, tap the brown and pink buses that you moved to the holding slots earlier.

If every holding slot is full and no passengers can board, the level is gridlocked. Restart the level or use a power-up to add a slot, then keep at least one holding option available for the next blocking bus.

More Bus Traffic Fever help

Review the Level 3 walkthrough, move on to Level 5, read how to play Bus Traffic Fever, use these tips and tricks, or browse all level solutions.