Question $4(40\%)$ :

A new road section with concrete pavement, shown in longitudinal section as Figure $1,$ is

$11,600$ feet long. It is to be constructed in accordance with the following conditions:

The balanced earthworks from station $00$ to $58(00)$ may be done at the same

time as the balanced earthworks from station $58(00)$ to $116(00)$ using two

separate independent crews.

The double$-$box culvert will be built by one crew, and another crew will be build

the two small culverts. Concrete may be supplied either from the paving batch

plant or from small independent mixers at the culvert sites, whichever is

expedient.

One small slip$-$form paver will do all the concrete paving work, and all the

shouldering will then follow with one crew after the concrete pavement is cured.

Seeding the embankments with grass must be left as late as possible.

The activities of the project are listed in Table $1.$ For the road project as described

above:

Develop a WBS with your own coding system $($DO NOT follow the

MasterFormat as it is not a building project$)$ and present it in a hierarchical

graph; and

Prepare an AON network diagram and perform a CPM analysis. With respect

$*******$ Please take your time and anser $it$ correctly $**************$to the task order and IPA's, you must use t

missing sequences $-$ remember to state your assumptions. Find the minimum

project duration, identify the critical path, and calculate the activities times $($ES$,$

$EF,LS,LF,TF,FF).$ The unit of the duration in the activity table is days.