Every holder of a permit issued pursuant to this subchapter shall take precautions as may be necessary for the protection of persons, animals and property from injury.  The precautions shall include the erection and maintenance of barriers and lights, and the Superintendent of Streets may prescribe in the permit other precautions as he or she may deem necessary or prudent.
(Prior Code, § 15-17)  Penalty, see § 10.99