Richard R. Deckro
Engineering Economic Analysis
The "intangible" benefits and costs involved in three alternatives presented are the cost of traffic delays, the cost of construction delays, the cost of different accident rates or public safety, and the cost of contractor inefficiencies. Based on the educated "guess-work" of the most probable economic effects of a benefit or cost, the Cost-Benefit Analysis leads to choose the alternative: the purchase of the Quick-Change Movable Barrier (QMB) with State funds. When viewed from a replacement decision analysis the same alternative is also chosen because of the dominance of this alternative in internal rate of return over the other three alternatives
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Louie, Art, "An analysis of movable Barrier Systems for Temporary Traffic
Control in Highway Construction" (1993). Engineering and Technology Management Student Projects. 902.