Strategy
Group relamping should be scheduled every three to five years. Group relamping should be planned in advance of the need for lamp replacement. Adequate traffic control, in accordance with the (TMUTCD), should be provided to assist motorists around the work zone and to provide added safety for maintenance crews. Other maintenance functions such as ballast replacement, igniter (starter) replacement, or fixture replacement and cleaning should be accomplished during group relamping.
Prior to performing group relamping activities on a three to five year interval, a cost analysis should be performed to determine if LED luminaire head replacements may be more feasible. Considering the fact that LED luminaires are becoming more economically priced, last longer, and are cheaper to operate, it may be more feasible to replace the conventional heads with LED heads rather than relamping with conventional bulbs.