A new law that took effect last Friday allows motorcyclists and bicyclists to run red lights after coming to a complete stop and waiting a reasonable amount of time. This law addresses the situation known to every motorcyclist and bicyclist -- many traffic light sensors don't detect the presence of motorcycles and bicycles.
Missouri DOT bureaucrats grumble about the supposed safety impact and some local police threaten to ticket riders anyway and "leave it up to the court to decide" if the cyclist waited a reasonable amount of time, but cyclists (motorized and pedal powered) around the state are happy that legislature has legalized what is common practice.
Cyclists must come to a complete stop at the red light. If, after a reasonable amount of time, the cyclist determines in his judgment that the signal is not going to change, he can proceed when it's safe. The law only applies to lights that are triggered by vehicle sensors -- if you're at a timed light, you still must wait for the timer to expire.
More from Missouri Bicycle Federation. H/T to Tulsa Cycling Examiner for the heads up. And it's a little amusing that in Champaign, Illinois, it's the cyclist who triggers a malfunctioning light for motorists.