It can be, yes. Such lights should be designed to minimize their spill in to other areas. A crosswalk light, for example shouldn't light up everything. It shoul

It can be, yes. Such lights should be designed to minimize their spill in to other areas. A crosswalk light, for example shouldn't light up everything. It should light up people in the crosswalk. Using LEDs, it can also have a fade in/out over a couple seconds to make it less jarring.