Specifications include, but are not limited to: The sign board material shall be constructed of aluminum and powder coated black. The powdercoated paint shall be certified UV protective paint and shall be impact, humidity and salt spray resistant. The face of the sign board shall be a UV stabilized, seamless, impact resistant anti-glare polycarbonate protective screen. The entire unit shall be protected by a weatherproof and lockable vandal resistant enclosure that affords easy access for maintenance and includes hinges and gas springs that lock when open. The signboard shall be angled from top to bottom to prevent glare from headlights. The sign board shall have lifting hooks or I-bolts installed on either end of the sign for the purpose of lifting the sign during installation. The lifting hooks shall be able to support the entire weight of the sign, as well as any mounting hardware, and additional equipment required to complete the installation.