It includes LOB description along with advantages ,disadvantages of LOB and also scheduling of LOB with an example.

1. Title of Seminar-
LINE OF BALANCE
• Prepared by- Miss. Patil Shivanjali .M.
• Class- B.E. (CIVIL)
• Division- B
• Roll no-128
• Batch-B7
• Guided by- Prof. Paithankar

2. Line of Balance
• Line of Balance is a management control process for collecting,
measuring and presenting facts relating to time, cost and
accomplishment- all measured against a specific plan.
• It is a method of showing the repetitive work e.g. projects like
highways, pipelines, high rise buildings, hotel bedroom: bridge etc. In
these types of projects there is set of tasks repeated across many areas.
• These types of schedule effectively model by Arrow and precedence
Diagramming. The LOB technique is graphical representation that can
used in conjunction with Arrow or precedence Diagrams.

3. • It illustrate the process, status, background, timing and phasing of the
project activities, this providing management with measuring tools
that help.
1. Comparison between actual progresses and a formal objective plan.
2. From established plans examining only deviation and evaluating
their degree of severity with respect to the remainder of the project.
3. Getting timely data and information regarding trouble areas and
specifying those areas. And specifying those areas where suitable
corrective action is required.
4. Forecasting future performance.

4. Advantages of LOB
• It clearly indicates the amount of work taking place in a definite area
at a specific time.
• It has the ability to show and optimize the resources used for large
number of repetitive activities, implemented in several locations.
• All information available for each and every activity of project, cause
easier analysis, cost and time optimization.
• Superior presentation and visualization of setup.
• Modification, update and changes can be easily made in schedule.

5. • It helps in simpler and clearer resource management and optimization
functions.
• Visualization of productivity and team location.
• It allows project managers to understand situation in middle of project,
whether they can meet the schedule if they continue working as they
have been.
• Well managing the several sub-contractors in the project

6. Disadvantages of LOB
• A clear critical path of project schedule cannot be generated.
• It could be divided only by location.
• In CPM scheduling the user could divide project by location and other
systems like trades, in LOB only location.
• Productivity rates in LOB schedule do not include the effect of crews,
learning curve, or if the individuals working in crews changed.

7. Scheduling with LOB
Following procedure should be adopted for preparing line of balance
schedule:
• Prepare a logic diagram
• To complete each operation, calculate the estimate of man hours required
• Select a buffer times which will lookout against the risk of interference
between operation
• Calculate the requisite output target so as to meet a given project
completion date.
• Complete LOB schedule
• In order to bring more balance schedule, inspect the schedule and access
possible attentive.

8. • The above construction procedure gives a proper LOB schedule. This basic
methodology is to determine the available resources, and evaluate the construction
rates that can be achieved.
• Consider the example of residential building project, where five buildings are to
be constructed. Following steps explain how the line of balance technique can be
used in scheduling.
• Th logic diagram is drawn below showing the different activities of the
construction single building, along with continuity of work.

9. • The buffer time is usually placed between each activity for margin of
error in the time taken to complete each of these activity.
• The above construction plan indicates that to complete one sequence
of activities total 60 days duration is required.
• The target output of project can be expressed in terms of
accomplishment of each building. In the following diagram, handover
dates are drawn for each of five buildings.

10. • Handover data for first building in on day 60, for second building is on
day 65, for third building is on day 70 and for 4th and 5th building 75
& 80 respectively.
• If these handover dates are joined by a straight line, this indicates the
handover schedule of the building in every 5 day.

11. • The constriction of each of five buildings is drawn in logic diagram
with buffer time to match handover schedule.
• The starting and finishing point of every activity is then joined by
sloping line.
• For example, earthwork, foundation- structure, superstructure and
finishing for all the buildings are joined by sloping line as shown in fig
which forms a series of band are nothing but the line of balance for
each gang.
• All the sloping lines are parallel.

12. THANK YOU