In the map legend, what is the difference between “No Data” and “No Equipment?
“No Data” means there is, or used to be, a data collector (field cabinet) at the site which is not currently working. The main reasons for a field cabinet not to work are: road construction (which often destroys the loops, the power connection, or the communication link between the field cabinet and the central computer), a local power outage, or, on a rare occasion, a malfunction of equipment. “No Equipment” means that data collection equipment has not yet been installed at the site. Usually, “No Data” locations will begin working sooner than “No Equipment” locations.
