Project Information: Gas Station Construction Project Using the information given in Tables 1&2 and Figure 1 shown below, develop a precedence notation CPM network for the described gas station project. Certain logical relationships are implied by the work breakdown structure (Figure 1: W33) and work packages (Table 1) that have been supplied to you by the field superintendent who has been chosen to run the job. According to contract specifications your company must submit a network scheduling (CPM) to the owner. Knowing that you are a CPM expert, your boss has given you the job of setting up the network. He also has asked you to set up the logic relationship between activities based on Table 1 & Figure 1 and calculate the project duration in working days. The duration of each activity is shown in Table 2. Assume that the project starts on December 1, 2021, which is a Wednesday. Workdays are Monday through Friday. Questions: 1- Please, give a detailed analysis of why and recommend the most suitable project delivery / procurement system and the appropriate pricing scheme (contract type) that can be proposed to accomplish the work according to your company's perspective. 2- Prepare a network diagram including the logic relationship among activities and determine the minimum possible project duration. Manually, calculate ES. EF, LS, LF, TF, and FF for each activity and show critical path. Show the project end calendar date. 3- Show the latest time you can complete the building frame in order to start the exterior brick work and roof. Table 2: Durations of Activities for the Gas Station Project Activity NOWNJONUt-PUJN MICJQOOQGNM-P-WMC Title Mobilize Obtain permits Site work Exterior utilities Excavate catch basin Excavate footers Excavate foundation piers Pour footers, etc. Erect bldg. frame Exterior brick facade Exterior fascia panels Roof construction Landscaping Pour interior slabs Glazing and doors Interior walls Elec. & mech. Systems Shelves Floor coverings Interior nishes Final inspection Demobilization Duration (Days) 10 15 8 12 2 5 6 8 IO 14 4 15 Table 1: Work Packages (i.e., Main Activities) for the Gas Station Project (1) Earthwork for Parking and Service (10) Interior Built-ins (e.g., Cabinets, etc.) (P&S) Area (1 1) Interior Painting (2) Asphalt Paving for P&S Area (12) Interior Drywall (3) Concrete Hardstands in P&S Area (13) Interior Doors, Frames, Hardware, etc. (4) Concrete Foundations (14) Interior Floor Coverings (if required) (5) Walls-Masonry Bearing Walls (15) Exterior Brick Facade (6) Walls-Prefab Metal Sandwich Panels (16) Exterior Glazing (7) Interior Concrete Floors (17) Exterior Doors and Signage (8) Built-up Roof (18) Mechanical Systems (9) Roof Gutters/Drainage (19) Electrical Systems Gas Station Packaging & Building Wall Mechanica Exterior Electrical Service Area Foundation Shell Building Roo Finishes Interior Floors Systems Pas Prefab Metal Earth Work isphall Paving|Concrete Areas Masonry Walls Walls Built-up Roof Roof Gutters Interior Built-in Painting Glazing Floor Coverings Drywall Install Doors, Frames Doors and (As Required) Hardware, etc. Brick Facade Signage Excavation of Waste Water Tile Drainage Septic Tank Fresh Water Sink, Basin Hot Water Pneumatic Air System Lines Lines Toilet, Etc. System System Figure 1: WBS of the Gas Station Project