The DPCM® is the world’s first and only port capacity model that fully integrates dynamic under keel clearance calculations, site specific environmental conditions, and unique port factors. Through a discrete event simulation model of a port’s operations, the DPCM® provides a tool to assess the impact on port capacity from changes to variables such as ship loader rates, vessel fleet profiles, services and asset availability (tugs, pilots, etc), as well as the effects of port closures.