Presidential Decree #5: Traffic Light Equality
“We hold these truths to be self-evident, that all people are created equal, that they are endowed by the Creator with certain inalienable rights: among these are life, liberty, and an equal right to cross a road intersection.”
If the pedestrians must push a button to cross the street, then the motorists have to push a button too.
If the bicyclists have to walk over the sidewalk to press a button to get a light to cross the street, then motorists have to get up out of their cars to press the button to cross the street.
If there are expensive sensors embedded in the road to detect a car to give them a light, then there are less expensive sensors to detect the presence of pedestrians and bicyclists who may also wish to cross the street.
If that is too difficult, then knock it off with the sensors and just program the light to give everyone a chance to traverse the intersection safely.
Also, it is decreed that if you want sensor-activated lights, then ye shall fund research to use weatherized video cameras to watch traffic of all modes approaching the intersection, in an effort to cycle the lights appropriately before the pedestrian/bicycle/automobile gets to the red light.
See Also: Copenhagenize.com: Motorists Dismount