User reports frequent failures of bicycle detection, leading to unsafe situations. They also note issues with pedestrian signals not aligning with vehicle/bike lights, and suggest larger, more visible bicycle traffic lights.
The "bike detected" lights are awesome. We have a few in Seattle. I can't tell you how many times I've had the vehicle detection fail when on my bicycle. WA State law allows the cyclist to proceed when a traffic detector fails - which was probably of help in the 1970s, but not so great with the busy, high speed roads and distracted drivers of today. I also notice since Seattle went to "leading" pedestrian signals (that is, the ped gets a head start), pushing the ped button does not give the same direction a green light for vehicles, including bikes. The problem is when the vehicle detector fails to detect a bicycle, which is common at a busy light near my home. (I've let the city know dozens of times over the last ten years, and they cannot seem to reliably fix it) With no green light for vehicles, pushing the ped button as a cyclist does not let other drivers know a "vehicle" (a bicycle) is coming. To add insult to injury, the closest ped button to actuate when the detector fails is up a steep hill 40 feet away from where bikes stop. Finally, who thought the miniature bicycle traffic lights were a good idea? Peds have had much larger "walk/don't walk" lights for decades.