Basically two techniques are available; the first one is based on projections and the second one on ray tracing methods.
Also, if job claims are to be based on projections, the Hudson Yards project in Manhattan would produce many more jobs over a shorter period of time.
Forecasts based on projections from the past become unreliable.
Legislating a huge multiyear tax cut now, based on projections of the federal surplus, is questionable.
"From the very beginning the numbers that were given were based on projections.
Too often, strategies are based on projections of business impacts that are oversimplified or flawed.
"Moreover, my agreement with the president's decisions was based on projections of conditions in July 2011.
The study is based on projections of river floods on regional scales.
"The costs of the loan system are based on projections of graduate repayments over the next 35 years," he said.
"These figures are based on projections of what might happen to graduate incomes in 35 years' time.
This year, based on projections by the Mortgage Bankers Association, there will be 677,000 foreclosures -- a 68percentt jump.
