The present invention relates to an integrated type road sign having a street lamp integrated with a signal light, which is able to easily increase the installation number of the signal lamps or display panels as the road environment changes by adjusting the protruding length of third and fourth horizontal pipes inserted into first and second horizontal pipes. The road sign including a pillar erected vertically on the ground and a street lamp main body fixated on the upper part of the pillar comprises: a first horizontal pipe which is fixated to protrude from the upper part of the pillar to a road side and has an open outer end part; and a third horizontal pipe which is inserted and fixated through an adjustable type fixing means, which is able to adjust a protruding length, inside the first horizontal pipe.
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