1. An apparatus comprising: at least one computer memory that is not a transitory signal and that comprises instructions executable by at least one processor to: identify at least a first and a second geographic regions representing a first and a second lighting requirements respectively, the first and second geographic regions intersecting each other to define an intersection area; identify a lighting performance for the intersection area from the first and second lighting requirements, the lighting performance defining at least one illumination parameter of at least a first street light assembly (SLA) positioned to direct light into the intersection area and not being the same as the lighting requirements of the first and second geographic regions; establish at least a first light distribution output by the first SLA by activating a first set of light emitters of the first SLA to output light in a first pattern onto the ground and establish a second light distribution for the first SLA by activating a second set of light emitters of the first SLA to output light in a second pattern onto the ground, the first set of light emitters not being equal to the second set of light emitters, the first pattern not being the same as the second pattern.