Rev Efficiency | Duration Work item Crew/equipment Quantity Work rate Duration Notes Project Name/Contract # Activity Name Use the section below only if you create your own crew rather than use the Means standard crews Labor (See crews) Equipment (See crews) Supervisors Truck 20T Carpenters Dozers Plumbers Scrapers Electricians Graders Laborers Cranes Masons Mixers Painters Rollers Lifts Estimated by Background: You have taken over as PM for a planned warehouse project. A colleague developed an initial CPM network diagram based on the client's scope of work. The previous PM also developed preliminary durations for the activities but did not complete the CPM. After reviewing the scope of work, you notice that the access road, sidewalks, and landscaping have been left off of the CPM. You also suspect that the 2 days shown for the Form and pour slab activity is incorrect. Make the required changes of items 1 - 4 below. Use the on the Canvas course website to estimate your durations. Use an efficiency of 100% unless told otherwise. Planning Scope of Work: 40ft x 120ft x 18ft high light industrial warehouse with reinforced concrete footings and 6 inch thick floor slab with 6x6 W2.1xW2.1 welded wire fabric reinforcing. Structural steel frame. Exterior metal studs walls between columns with exterior metal siding. Metal decking roof overlaid with single-ply roof membrane installed over fiberglass insulation boards. The entire warehouse will have a fire sprinkler system. The warehouse will be lit with mercury vapor lamps. There will be a small office and restroom constructed with metal stud and drywall interior partitions. The office and restroom will have a suspended ceiling. The office and restroom walls will be finished and painted. The heating system consists of natural gas unit heaters suspended from the ceiling. The Windows & doors activity includes exterior doors and windows. The Frame interior activity includes interior doors. There will be landscaping and sidewalks around the building. There will be a 4 mile access road, paved parking area, and one truck loading dock. 1. (9 points) Form and pour slab Prepare an activity duration estimate for Form and pour slab. Use form. Will the duration that you estimated change the overall schedule duration? Explain. 3. (6 points) Paving. Add paving of the access road and parking areas to the network. You can use a single activity or break the task into multiple activities. Show its duration. Prepare an activity duration estimate for "Paving." Use the you Change 3. (6 points) Paving. Add paving of the access road and parking areas to the network. You can use a single activity or break the task into multiple activities. Show its duration. Prepare an activity duration estimate for Paving." Use the . Because of site congestion, use an efficiency of 80%. If you use more than one activity, prepare worksheet for each activity on the revised CPM network. What other activity scope, duration, or sequencing would be affected by adding paving? Will the paving duration that you estimated change the overall schedule duration? Explain. 4. (6 points) CPM network. Calculate the early start/finish, late start/finish, and float for each activity in your revised network. Show the critical path on the network in a clear way. Rough plumbing Install heaters Rough electrical Insulate ext walls 1 Finish plumbing Clear &grub Excavate ftg & slab Form & pour slab Frame ext/ walls 2 Frame roof 3 Paint interior Install drywall Roofing Close out Finish electrical Frame interior Temp power Windows & doors Install siding Paint exterior ES DEF Activity LSF LF . . Qty of concrete to place for slab = 89 cy Qty of concrete to place for footers = 6.7 cy For slab placement, use Means line 03 30 53.40 4820 which includes finishing. Adjust efficiency to 80% to account for this slab being on the Canvas course website to estimate your durations. Use an efficiency of 100% unless told otherwise. Planning Scope of Work: 40ft x 120ft x 18ft high light industrial warehouse with reinforced concrete footings and 6 inch thick floor slab with 6x6 W2.1xW2.1 welded wire fabric reinforcing. Structural steel frame. Exterior metal studs walls between columns with exterior metal siding. Metal decking roof overlaid with single-ply roof membrane installed over fiberglass insulation boards. The entire warehouse will have a fire sprinkler system. The warehouse will be lit with mercury vapor lamps. There will be a small office and restroom constructed with metal stud and drywall interior partitions. The office and restroom will have a suspended ceiling. The office and restroom walls will be finished and painted. The heating system consists of natural gas unit heaters suspended from the ceiling. The Windows & doors activity includes exterior doors and windows. The Frame interior activity includes interior doors. There will be landscaping and sidewalks around the building. There will be a 4 mile access road, paved parking area, and one truck loading dock. 1. (9 points) Form and pour slab Prepare an activity duration estimate for Form and pour slab. Use form. Will the duration that you estimated change the overall schedule duration? Explain. 3. (6 points) Paving. Add paving of the access road and parking areas to the network. You can use a single activity or break the task into multiple activities. Show its duration. Prepare an activity duration estimate for "Paving." Use the you Change 3. (6 points) Paving. Add paving of the access road and parking areas to the network. You can use a single activity or break the task into multiple activities. Show its duration. Prepare an activity duration estimate for Paving." Use the . Because of site congestion, use an efficiency of 80%. If you use more than one activity, prepare worksheet for each activity on the revised CPM network. What other activity scope, duration, or sequencing would be affected by adding paving? Will the paving duration that you estimated change the overall schedule duration? Explain. 4. (6 points) CPM network. Calculate the early start/finish, late start/finish, and float for each activity in your revised network. Show the critical path on the network in a clear way. Rough plumbing Install heaters Rough electrical Insulate ext walls 1 Finish plumbing Clear &grub Excavate ftg & slab Form & pour slab Frame ext/ walls 2 Frame roof 3 Paint interior Install drywall Roofing Close out Finish electrical Frame interior Temp power Windows & doors Install siding Paint exterior ES DEF Activity LSF LF . . Qty of concrete to place for slab = 89 cy Qty of concrete to place for footers = 6.7 cy For slab placement, use Means line 03 30 53.40 4820 which includes finishing. Adjust efficiency to 80% to account for this slab being