Articles
Project Pre-Planning (c) David Brown, Construction
Industry News, (July 30, 2006)
This is the amount of time spent moving around the
jobsite, mobilizing and cleaning up every day,
studying the plans, laying out the work and other
activities not directly related to actual
installation.
This “non-installation” time is spread evenly over
the course of the typical project. A few minutes
here, a few minutes there, day-by-day, spread over
the entire crew. More than half of this
“non-installation” time is spent on plans, layout
and material logistics.
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What if you could shift those activities to the
front of the project, the “Pre-Planning” stage?
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Could those activities be done more efficiently
as a dedicated task rather than in the field a
few minutes before going to work?
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How much money could you save in efficiency if
more of the work was pre-planned? Could you get
your crew to work a few minutes earlier?
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Could you minimize trips from the work areas to
the job office / gang box if things were better
planned?
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How much would the bottom-line on your projects
change if you could improve labor productivity
by 5%?
Construction & Problems
Constructing a project is challenging; it is very
messy. There will always be problems. Problems are
a fact and they need to be factored into your
plans. Problems are often amplified on
construction projects because of the separation of
the design functions from the construction
functions.
Architects, engineers and design consultants are
often forced into “low-bid” contracts and the
pressure to constantly deliver lower prices means
cutting out on coordination between engineering
disciplines, eliminating detail drawings, cutting
down on elevations, minimizing plan-checking and
peer reviews, etc.
All of the cost-cutting on the design side means
that fewer and fewer conflicts are caught at the
design stage and left for the contractors to
figure out.
How you overcome problems will determine the
success of your project.
The Cost of Problems
Problems are not usually recognized until you are
right in the middle of them – at this point the
problem will cost about 30% to fix – so if you are
in the middle of a $1,000 piece of work and
discover a problem it will cost about $1,300
before you are done.
In the worst case, when problems are discovered
after the work is complete it will cost up to 80%
to fix.
Our focus needs to be on spending whatever
resources are necessary to identify and solve
problems BEFORE we are in the middle of
construction.
A 5,000 Man Hour Project
Pre-planning is just what it sounds like – it is
about taking the time that is normally spent on
planning throughout the project and shifting it to
the beginning of the project.
When you look at what happens during the day for
one person it just looks like a few minutes and it
seems impossible to save any real time. Let’s look
at a 5,000 hour project and how the time is spent
in the field.
Over a 1 year, 5,000 man hour project there are
6-7 hours per day spent on non-installation
activities; a total of 1,800 man hours. We can
plan our attack by focusing on four key areas:
1. Plans & layout – 11%, 550 hours
2. Material Logistics – 6%, 300 hours
3. Mobilization, cleanup and site movement – 13%,
650 hours
4. Breaks and other non-productive time – 6%, 300
hours
Planning & Layout – Where Can You Be Most
Efficient?
There is no question that planning and layout has
to be done. The question is when and where can it
be done most efficiently?
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Pre-planning is about moving as many of the
field layout, coordination and planning issues
to the front of the project as possible.
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Pre-planning is about taking the activity out of
the field and into a controlled environment that
is specifically designed for efficient planning.
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Pre-planning is about taking advantage of tools
that allow more accurate layout and
communication of ideas.
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Pre-planning is about finding and resolving
problems before you start working to minimize
disruptions to progress and re-work.
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Pre-planning is about locating value-engineering
and pre-fabrication opportunities well before
construction starts.
There is no hard and fast rule about what
pre-planning looks like. The process will look
slightly different for each company and project
type.
The goal is to build a culture into the company
where people seek out opportunities to shift work
from the project to a more controlled environment.
It is about shifting the thought process from
being reactive to proactive.
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