The disclosure provides a system, a method, and a computer program product for validating a road sign. The method comprises receiving at least one road sign observation associated with a location wherein the road sign observation comprises at least a road sign type. The method may include obtaining sensor data associated with the at least one road sign observation, based on at least the road sign type. The method may include calculating a number of lanes based on the sensor data. The method further includes, validating the road sign based on the number of lanes, wherein the road sign is validated as a correct road sign when the number of lanes is less than the number of lanes obtained from map data associated with the location.