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Project Management
Specialization
Construction Productivity Improvement:
Human, External and Management Issues
Research Team: Dr. Janaka Ruwanpura, Dr. George Jergeas,
Eldon Choy, Kasun Hewage,Sushil Peres da Silva, Tanveer
Ahmed (Phase II), Markus Liberda (Phase I).
Overview
•
•
This research investigates industry practices
and develop tools to improve construction
productivity of future Alberta construction
projects. This will be done by investigating
the most critical factors that affect
construction productivity and also
determining their individual and cumulative
impact on project performance. Three
specific contributing areas will be considered
are human issues, management issues and
external issues.
The expected deliverables of this research are
a root analysis to identify the triggering
situations that affect construction
productivity, a situation based model to
predict construction productivity, a set of
practical guidelines, and a pro-active
simulation model to plan team dynamics of
future projects.
Phase IIa: Factors Analysis
Management
Data collection from 53 participants from Graham,
Ellis-Don, PCL, and Ledcor. The participants recognize
important factors that affect construction productivity.
Rankings
(Relative
Importance)
2
•Human
•Management
•External
Lack of detailed planning
Worker experience and skills
Inadequate supervision
Worker motivation
Non availability of materials
Worker attitude and morale
Team-spirit of the crew
Non availability of information
Changes in drawings and specifications
Non availability of tools
Non availability of equipment
Nature of project (size and complexity)
Lack of procedures for construction methods
Changes in contract
Congested work area
Worker Motivation
3
4
Member
Factors
Identified factors are further combined into clusters based on
the discussion between the research participants and the
research team. These clusters are more logical for the industry
to understand reasons for productivity performances.
•
Changes in Contract
•
Constructability
•
Changes in Specifications and
Drawings
•
Worker Motivation
•
Worker attitude and morale
•
Team-spirit of the crew
•
Disrespectful treatment of worker
•
Inadequate Communication
Inadequate Communication
•Results based on 22 highly experienced industry
experts in
Alberta Construction Industry
•Average 27 years of construction experience
•51 factors are identified in three categories
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Cluster
Name
Design and Changes
Relative Importance of Factors (only
Frequency > 14 are illustrated)
Worker Skills
5
Statistics of each Factor
Category
Rating*
Management
Human
Management
Human
Management
Human
Human
Management
External
Management
Management
Management
External
External
External
37.13
35.30
35.25
26.15
25.60
21.75
20.40
19.20
18.85
18.75
18.60
17.94
16.40
11.95
11.60
Human
Phase IIb: Clusters Analysis
1
Phase I: Pilot Study
Rank Factor
External
Non-availability of Information
Cluster Composition
•
Worker experience and skills
•
Incompetent personnel
•
Lack of worker training and
education
•
Non-availability of materials
•
Non-availability of tools
•
Non-availability of information
•
Non-availability of equipment
Lack of Planning
Congested Work Area
Lack of procedures for
construction methods
8
•
Non-availability of materials
Inadequate Supervision
•
Non-availability of tools
•
Non-availability of information
•
Non-availability of equipment
•
Lack of Detailed Planning
•
6
7
9
•
Congested work area
•
Site layout
•
Overcrowded work area
•
Cleanliness of construction site
•
Discontinuity in crews makeup
•
Changes in foremen
•
Inadequate supervision
•
Adverse weather conditions
Adverse Weather
CONTACT
Comments on each Factor
Dr. JANAKA Y. RUWANPURA, PQS.
Assistant Professor
Project Management Specialization
Department of Civil Engineering
University of Calgary
ENF 232, 2500 University Drive NW Calgary, AB, T2N 1N4, Canada.
403-220-6892 (Tel), 403-282-7026 (Fax)
E-mail: [email protected]