an adjuster configured to adjust the actual irradiating state of the headlight to the alternative irradiating state when it is determined that change of the actual irradiating state of the headlight of the controlled vehicle to the alternative irradiating state thereof reduces the level of {HEAD ~ glare} for {TAIL ~ the target person} 
an adjuster configured to adjust the actual irradiating state of the headlight to the alternative irradiating state when it is determined that change of the actual irradiating state of the headlight of the controlled vehicle to the alternative irradiating state thereof reduces the level of { HEAD ~ glare } for { TAIL ~ the target person }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL