The franchisee shall, at all times, install, maintain, and use commonly accepted methods and devices for preventing failures and accidents which are likely to cause damage or injuries to the public. In furtherance thereof, the franchisee must comply with the City’s traffic control requirements, including, for example, but without limitation, the use of signal devices, warning signs, and flaggers when appropriate. All of franchisee’s structures, cables, lines, equipment, and connections in, over, under, and upon the rights-of-way and public ways or other places in the franchise area, wherever situated or located, shall at all times be kept and maintained in a safe condition.