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World fortnightly challenge

A short, illustrative Harbour City coverage warm-up: predict, build, run, explain and fix. Every two weeks the brief changes. There is no timer or leaderboard.

Stops and gateway sites are 1 km apart on a straight line. In this model, a gateway covers a stop within 1.1 km, including its own site. Every stop needs coverage.

Build: choose gateway sites

Select sites, then run the model. You can change your design and try again.

Explain and fix

What this model cannot show

This is the non-3D route. The numbers are illustrative, not measured radio coverage. Buildings, interference, terrain, packet loss, gateway capacity and battery life are not modelled. Coverage here does not prove a real bus tracker will work.

Your work stays on this page and clears when you leave or turn the challenge off. Nothing is submitted or shared. This activity awards no badge or XP.