Seismic (earthquake) design requirements within a building code are enacted to protect property and life in buildings in case of earthquakes. Seismic design requirements were created and developed as a response to major earthquakes and the resulting devastation.

Unit of measure typically associated with the uniformly distributed live and dead design loads on an elevated platform or the wind, snow, and rain loads applied to outdoor structures.

Elevated standard walkways limited to ‘foot’ traffic.