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Can you debug the crossing?

Traffic Tech Lab

Connect sensors, write the instructions for a traffic signal and keep a busy junction safe.

Working prototype
Who it is forGrade 6 onwards (ages 11+)
SkillsSensors · Rules · Debugging
TypeSimulation
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Before you begin

You’ll guess what might happen, make a choice, test it, and explain what changed. Wrong guesses are allowed (and encouraged).

How to use

  1. Read the challenge.
  2. Build or choose a model.
  3. Test it.
  4. Improve it.
  5. Explain why your final choice works.

Learning goals

  • Connect sensors, wires and a controller into a working sense–think–act system.
  • Write and debug the rules that control a traffic signal.
  • Decide when a prediction should give way to a safety rule.

Think again

What surprised you? What are you still not sure about? What would you test next?

About this prototype

Version 1, a working prototype. It hasn’t been tested with classes yet, so I’m not claiming any learning results.

Privacy

No sign-in is needed. The tool runs in your browser, and anything you type stays in this tab. Please do not enter a child’s full name.