And note Green Wave doesn’t generally work for buses: https://bathtrams.uk/green-wave-traffic-light-pre-emption-is-usually-only-done-for-trams-ie-not-buses-says-world-bank/ Green Wave Traffic Light Pre-emption means using a central self-learning traffic control computer to set traffic lights pre-emptively, such that a tram can proceed through rush hour traffic unimpeded. This does not mean simply turning lights green when the tram arrives – you need a whole … Continue reading How Green Wave traffic signal pre-emption / traffic light pre-emption gets trams through traffic on the London Road, Bath