Abstract: Traffic flow between each pair of nodes in a network are determined based on loads measured at each link and based on gravity measures. The gravity measures correspond to a likelihood of the node being a source or a sink of traffic and may be assigned based on characteristics associated with each node, such as the demographics of the region in which the node is located, prior sinking and sourcing statistics, and so on. The gravity measures are used to generate an objective function for solving a system of linear equations, rather than as criteria that must be satisfied in the solution. The measured link loads are allocated among the traffic flows between nodes to at least a given allocation efficiency criteria by solving a system of linear equations with an objective of minimizing a difference between the assigned gravities and the resultant gravities corresponding to the determined flows.

Abstract: The embodiments provide a hinge assembly for a trash can assembly that allows the lid to be conveniently removed from the hinge assembly. The trash can assembly, can comprises: a shell having an upper, open end; a lid configured to cover the upper, open end of the shell; a hinge assembly coupled to the shell and the lid and configured to provide pivotable movement of the lid between an open position and a closed position, wherein the hinge assembly comprises, a mounting bracket provided on the lid and having at least one through hole, a housing provided at the upper end of the shell and defining a bore, and a pivot bar that is received inside the at least one through hole and the bore to allow pivotable movement of the mounting bracket relative to the housing, and engaged by a locking mechanism into position within mounting bracket and housing to prevent withdrawal of the pivot bar from inside the at least one through hole and the bore.