can you help me with number 3SolutionAnswer The problem is o

Solution

Answer:

The problem is of Network construction and the rules for the same is as follow:

1) In network diagram arrows represent activities ansd circles the events. The length of an arrow is of no significance. The activities can be further classified into three activity (i) Predecessor Activity (ii) Successor Activity and (iii) Dummy activity.

2) Each activity should be represented by one arrow and must start and end in a circle called event. The tail of an activity represents the start and head, the completion of work.

a) In the above Network travel time from has been computed as below:

Route 1:

Origination/From        Events/To      Time required

          O                            N₁                            100

          N₁                                        D                      30                                       

     Total travel Time                                130

Route 2:

Origination/From        Events/To      Time required

          O                            N₂                            30

          N₂                                        D                  100                          

     Total travel Time                                130

By both the routes travel time taken are same.

b) If the govenment construct a new road connecting Node 1 to Node 2 the total traved time will reduce as below:

Origination/From        Events/To      Time required

          O                            N2                            30

          N2                                       N1                     5

              N1                           D                     30                          

     Total travel Time                                65