approval Someone's foresight is their ability to see what is likely to happen in the future and to take appropriate action. He was later criticised for his lack of foresight They had the foresight to invest in new technology. the ability to imagine what is likely to happen and to consider this when planning for the future forethought
A sighting on a point of unknown elevation from an instrument of known elevation To determine the elevation of the point in question, the foresight is subtracted from the height of the instrument
A foresight is a reading taken on a position of unknown coordinate(s) Since a survey progresses from a point of known position to points of unknown position, a foresight is a reading looking "forward" along the line of progress Foresights may be taken on the "main circuit" of the survey or on additional points of interest Readings on additional points of interest are sometimes called sideshots or intermediate foresights to distinguish them from the readings that form the main circuit of the survey
In levelling, the last reading to be taken from one setting of the instrument A foresight must be taken on a fixed point, which then becomes a benchmark
A proprietary optional feature that uses feedback techniques to dynamically allocate extra bandwidth to frame relay and ATM connections when the network bandwidth is available and not used by other connections See also VSVD