IKaRad is a mathematical prove that you can signal the traffic light phase to cyclists without the need to know their riding speed.
The project with the prototype is described under ikarad.de (in german language).
The display calculations for non-repeating traffic light (in german language) can be downloaded in higher quality following these links:
The display calculations for non-repeating traffic light (in german language) can be downloaded in higher quality following these links: