a 1,500-foot subdivision street is to be constructed. the layout will be completed in three days; the fill will be brought in over the course of eight days; the compaction/grading will be completed in five days; the asphalt topping will be done in three days; and the striping will take one day to complete. using a minimum buffer of one day between different activities, develop a linear schedule for this project. what is the project duration if no activities are to be interrupted? suggest ways that the duration can be shortened.