Drainage material $-$ When Crew $2$ has finished a section, Crew $1$ will reinstate

the area behind the wall. This will entail laying the geotextile and laying drainage

material behind the completed gabions. They can lay the geotextile and place

and compact the Drainage Material at a rate of up to $75\frac{m^3}{?}$ day.

Crew $2$ will construct the gabion wall. The crew consists of four labourers and a loader

$($with operator$).$ The gabion wall consists of two levels of $1m$ wide $1m$ high $2m$ long

gabion baskets. The crew will put the baskets together away from the working area.

There is enough area to store all baskets on site. It takes one person $15$ minutes to

construct one basket. They will wait $2$ days after the concrete slab is laid $($to allow it to

cure$)$ and then will lay out the first layer of baskets. They then need to use the loader to

transport rocks to each basket and fill it$.$ It will take two labourers $8$ minutes to fill each

basket. They will then construct the second layer, requiring $9$ minutes for two labourers

to lay and fill each basket.

Materials costs are $-$

Drainage Aggregate $=$$$\frac{210}{m^3}$

Gabion Baskets $=$$$\frac{30}{?}$ basket

Gabion Rocks $=$$$\frac{190}{m^3}$

Foundation Gravel $=$$$\frac{140}{m^3}$

Mesh Reinforcing $=$$$\frac{85}{?}$ sheet $($each sheet is $2\mathrm{.}4m1\mathrm{.}2m).$

Concrete $=$$$\frac{320}{m^3}$

Geotextile $=$$$\frac{25}{m^2}.$

All costs include delivery to the site.

Cost rates are $-$

Loader $=$$$\frac{190}{?}$ hour

Excavator $=$$$\frac{350}{?}$ hour

Labourers $=$$$\frac{50}{?}$ hour

The project starts on Monday, $1$ July $2024,$ and you wish to complete the project as quickly as

possible. You can move labourers between crews, but you do not have access to additional

resources, so you need to organise the crews to finish in the least amount of time. Make

reasonable assumptions for any other information that may be required, and remember to note

these assumptions in your calculations.

Working hours are $8$ am to $6pm$ from Monday to Friday with $30-$minute breaks in the morning

and afternoon and a $1-$hour lunch break. It will take $5$ days to establish onsite at the beginning

of the project and $5$ days to disestablish at the end.

For this assessment, you need to:

Produce a program for the project. You will need to determine the durations and sequence

so that the project is completed as efficiently as possible, including using lead and lag as

appropriate. $(20$ marks$)$

Produce a Budget and Cash Flow $($by week$)$ for the project $(15$ marks$)$

Produce a Risk Management Plan with at least $2$ risks affecting each of scope, time and

cost objectives $($i$.$e$.6$ risks minimal$).$ The plan should identify each risk, assess its severity,

and propose actions to mitigate it$.(15$ marks$)$

Note that the calculations required for the durations and costs and any assumptions are to be

included in your submission. Marks are awarded for the neatness and logical layout, as well as

the correctness of the calculations. All outputs and associated calculations are to be compiled

into one PDF to be submitted to Moodle by the due date.