Drag the red line to where the back of the trailer should cross.
Only vehicles moving in the exit direction are read.
Re-running copies the clip
back through the pipeline and makes a NEW read — the original stays filed.
See the frames it used in Admin → Recent Reads.
Skip Gray Containers
Weeds out enclosed silver/gray metal containers before the slow plate read — trailers you don't need. Keeps flatbeds (empty deck or colored tarp). It reads color on the detected trailer, so background doesn't fool it.