CEE 498 - HW5

CEE 498 - HW5 - CEE 498 Fall, 2004 HW 5 1. What are the...

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CEE 498 Fall, 2004 HW 5 1. What are the different types of scheduling used in the construction industry? Briefly describe each of them. The first type of scheduling used in the construction industry is the bar chart. A bar chart is a graphical representation of a project in which activity types and duration are represented by bars in proportion to its duration. Bar charts are simple to make, easy to read, and include time, activity, and order. They also show the actual vs. estimated progress of a project. Unfortunately, bar charts do not show interdependencies and the use of bar charts is limited to projects that contain 200 – 2000 activities. The next scheduling instrument is the network diagram. A network consists of two major elements – a nodes and arrows, which connect the nodes. There are three different kinds of network diagrams. The first is a precedence diagram. Since precedence diagrams deal exclusively with interrelationships, they are used as a worksheet for the planner to study interrelationships. It is a network of activities with logical connection; however, the connecting arrows have no time or direction. The second kind of network diagram is am arrow diagram. In this kind of diagram arrows represent the activities and events are represented by dots. Every activity had one starting and one ending event (from one dot to another). Arrow diagrams are used to describe dependency relationships and unlike precedence diagrams, they apply duration to activities. The third type of network diagram is a critical path diagram. This kind of diagram performs network calculations. A forward pass is used to determine early start (ES) and early finish (EF), and a backward pass is used to determine late start (LS) and late finish (LF). The critical path is the longest duration,
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CEE 498 - HW5 - CEE 498 Fall, 2004 HW 5 1. What are the...

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