Introduced in 1964 as the M-2, the octagonal M-2A traffic signal pole is Standard for use at all traffic signal locations. A 5-feet mast-arm extension can be used to bring the signal farther out over the roadway, if necessary.
With a 7-feet shaft extension, the M-2A can be used to hold a standard street light arm and a luminaire. It can also be made to resemble nearby Distinctive poles.