Other Scheduling Methods - Construction Project Scheduling and Control - page 313

Figure 11.15 A successor's getting ahead of its predecessor: an illegal relationship
3. Make the painting crew start later (calculate the time buffer).
4. Make the painting crewwork in intervals: once they catch up with the carpentry
team, they can stop for a period, resume, and so on.
Solution 1 would increase the slope of activity A. Solution 2 would decrease the
slope of activity B. Solution 3 would increase the time buffer. All three solutions aim
at preventing the intersection of the two lines. Solution 4 would be represented in an
LSM diagram, as shown in Figure 11.16. The horizontal lines (slope = 0) represent
an interruption or stoppage time (no production). If the productivity of the crew
changes, the slope changes, too. Therefore, alternatively, instead of completely halting
Figure 11.16 Solution 4 for avoiding an intersection in the LSM