I don't have the data in front of me, but essentially we are installing radars on large towers that allow us to see, with radar capability, into those areas of risk. It may be in a particular area.
We're installing a number of them on the Inside Passage of Vancouver Island. It may be, with the tower height, that they can see almost across the entire strait.
We've evaluated the risk of particular areas where we need coverage, where maybe the signals from the AIS are difficult to get. There we use radars to supplement our eyes and ears—in this case, eyes. When we've evaluated that risk, we install the radar with the capability that allows us to see where those gaps are in radar coverage.