The document requests help drawing a project network diagram using the activity on arc method, showing earliest start and latest completion times for each event node based on the precedence relationships and without unnecessary dummy arcs. It asks the reader to draw the network, number the event nodes, and include the ES and LC times next to each node.

1. Please help! I just can't seem to get the diagram correct, and in turn, I cannot get the correct
calculations for ES, and LC times.
*************PLEASE DRAW USING THE "ACTIVITY ON ARC" METHOD
*************
( NOT THE "ACTIVITY ON NODE" METHOD)
a) Draw the project network according to the precedence relationships and give appropriate
numbers to the event nodes. (Do not use unnecessary dummy arcs!!!)
b) Show the Earliest Start (ES i ) times of events and Latest Completion (LC i ) times of events
next to the event nodes on the project network. (See the examples in the lecture notes).
Please help! I just can't seem to get the diagram correct, and in turn, I cannot get the correct
calculations for ES, and LC times. Draw the project network according to the precedence
relationships and give appropriate numbers to the event nodes. (Do not use unnecessary dummy
arcs!!!) Show the Earliest Start (ESi) times of events and Latest Completion (LCi) times of
events next to the event nodes on the project network. (See the examples in the lecture notes).
Solution