1. A system for controlling throughput of a plurality of assets in a work-in-progress (WIP) flow within a monitored environment, comprising: a tag transmitter associated with each of the plurality of assets and configured to transmit a wireless radio frequency (RF) signal that includes data relating to the identification of the asset to which the tag transmitter is associated; and a real time location system (RTLS) infrastructure configured to track locations of the plurality of assets through task areas of the WIP flow within the monitored environment, the RTLS infrastructure comprising: a plurality of spaced access points positioned at known locations within the monitored environment, the access points being configured to receive the wireless RF signals from the tag transmitters, and one or more processors configured to: correlate the signals and successively delayed or offset versions of the signals received at the access points from the tag transmitters determine first-to-arrive signals from the correlated signals; locate the tag transmitters based on the first-to-arrive signals; determine, via flow metering of the assets and based on the located tag transmitters, an asset input rate into the WIP flow at an origin of the WIP flow; calculate a delay input for completing a task in one of the task areas; and control, based on the delay input, throughput of the assets through the task areas.