Download - Contractor Performance Assessment
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Review of ContractorsPerformance Assessment System
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Objectives of Review
Enhance objectivity and transparency
Incorporate important performance criteriaand raise their weightage
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Assessment by consultants 170 points
Assessment by HDB 80 points
Total 250 points
Current System of Assessment
Assessed by both consultants and HDBs
Project Director
Performance scored to be concurred by DDs
and approved by Directors Contract Performance Review chaired by GDBQ
with Directors to review the performance score
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Overview
Assessment by Consultant Progress of works
M&E functional tests
Critical C&S tests
Handover inspection
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Overview
Assessment by HDBAssessment criteria not quantifiable
Reduce weightage
More guidelines set
Incorporate important criteria and new initiatives HDB audits
Productivity and sustainable construction initiatives
HDB PD to assess Arch functional tests, M&Efunctional tests, critical C&S tests and inspectioncarried out by HDB
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Progress of Works
Progress Score
More than 1 months ahead of schedule 30
Up to 1 month ahead of schedule 27
On schedule 24
Up to 0.5 month behind schedule 18
More than 0.5 to 1 month behind schedule 15
More than 1 month to 2 months behind schedule 12More than 2 months behind schedule 0
Old
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Progress of Works
To allocate 5 points for meeting milestone of
critical activities
To reduce band and lower score for delay
more than 0.5 month
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Progress of Works
Progress of Works* Points
More than 1 month ahead of schedule 25
No delay and up to 1 month ahead of schedule 20
Up to 0.5 month delay 16
More than 0.5 month and up to 1 month delay 10
More than 1 month and up to 2 months delay 5
More than 2 months delay 0
New
* Take into account of Contractors entitled EOT excluding exceptionally
inclement weather for ease of assessment
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Progress of Works
Timeliness in meeting critical milestones / activities
Submission and approval of ECM & SHMS
Setting up and approval of timber mock up
Submission of workshop drawings for cast-in windows and
precast components
Submission and approval of materials, method statements
and trades demonstration
Setting up and approval of sample units
Handover of lift motor room
Readiness of site for laying of services
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M&E Functional Tests(Total 6 points)
Items to Assess
Electrical
Electrical substation
Main switchboardLightning protection system
Public lighting
Unit testing
TV system
Fire alarm system
Standby generator
Mechanical
Refuse handling plant
Booster pumping system
Rainwater pumping system
Waste water pumping system
Ejector / divertor system
Dry / wet risers system
Fire hosereel systemMechanical ventilation system
Leakage test for gas pipe installation
Sprinkler system
Plumbing & sanitaryWater pressure test for concealed pipes
Concealed stack leakage test
* Base on the result of worst block tested during assessment period and deduct 0.4 pointfor each test failure
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Assessment by Consultants
S/N Criteria Max. Score
1 Quality of Works 105
Structural Works 40
Architectural Works 39
M & E Works 16
Handover Inspection Assessment 10
2 Management 65
Construction Planning & Management 10
Response to Instructions 5
Compliance with Environmental Requirements 10
Progress of Works 30
Safety 10
50*
* 10 points for quality of timber mock up and sample units
15
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Assessment by HDB
Description Points
Contractors senior managements commitment 20
Site management team 20
Use of reliable subcontractors 20
Innovation and initiatives 20
Old
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Assessment by HDB
Description Points
Contractors senior managements commitment 10
Site management team 10
Handover inspection assessment 10
Functional and critical C&S tests 10
Productivity and sustainable construction initiatives 20
HDB audit checks 20
New
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Contractors Senior Management
CommitmentDescription Points
Minimum once a month visit to site by senior management 2
Company Quality Management System
Team for CONQUAS pre-inspection & rectification
Formalised system for pre-handover inspection & rectification
2
Responsiveness to HDBs instruction in meeting project objectives
Increase resources and special efforts to expedite the works
Managing residents complaints
Meeting safety & housekeeping and ECM objectives
2
Commitment over and above contractual requirements in meetingproject objectives
2 Increase resources and special efforts
To mitigate delay caused by others
To exceed bonus threshold for CONQUAS
Use of reliable subcontractors 2
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Site Management Team
Description Points
Experience of site team
Project Managers experience in residential project
Safety Officers experience in residential project
Supervisors experience in residential project
3
Competency and adequacy of site team 3
Ability of site team in solving problem
Effectiveness
Ability to foresee
Proactive in highlighting and providing solutions
4
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Review on Handover Inspection
(a) BIT 1st Inspection Result ( 5 points )
S/N No. Of Defects Per Unit In 1st BIT Inspection (D) Points Awarded
1 2 and below 5
2 2 < D < 3 4.5
3 3 < D < 4 3.5
4 4 < D < 5 3
5 5 < D < 6 2
6 6 < D < 8 2
7 8 and above 0
(b) No. Of Inspection Before Handover ( 5 points )
S/N Number Of Inspections Before Handover Points Awarded
1 1 5
2 2 4
3 3 and above 0
Old
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Handover Inspection
(a) BIT 1st Inspection Result ( 5 points )
S/N No. Of Defects Per Unit In 1st BIT Inspection (D) Points
1 1 and below 5
2 1 < D < 2 4.5
3 2 < D < 3 4
4 4 < D < 5 2
5 5 and above 0
(b) No. Of Inspection Before Taking Over ( 5 points )
S/N Number Of Inspections Per Block Before Handed Over Points
1 1 5
2 2 3.5
3 3 and above 0
New
Base on the result of worst block inspected
during assessment period
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Functional and Critical C&S Tests
Type of Test Points
Critical C&S tests 3
Arch Functional tests 3.5
M&E functional test 3.5
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Critical C&S Tests
Critical C&S Tests
Test cubes results at 28 days
Steel reinforcement tensile test
Deduct 0.2 point for each test failure during assessment
period
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Arch Functional Tests
Arch Functional Tests
Water tightness test for windows & wall joints
Water tightness test for precast wall joints
Wet area water tightness testFlat roof water tightness test
% Of Samples Failed The Test At First Attempt Points
0% 3.5
< 5% 2
5% and above 0
Base on the result of worst block tested during assessment period
Use above table to assess each functional test and take average
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Review on M&E Functional Tests
Items to Assess
Electrical
Main switchboard
Lightning protection system
Public lighting
Unit testing
TV system
Mechanical
Refuse handling plantTransfer pumping system
Booster pumping system
Rainwater pumping system
Waste water pumping system
Ejector / divertor system
Fire alarm system
Standby generatorDry / wet risers system
Fire hosereel system
Mechanical ventilation system
Sprinkler system
Plumbing & sanitary Water pressure test for concealed pipes
* Base on the result of worst block tested during assessment period and deduct 0.2 pointfor each test failure
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Productivity and Sustainable
Construction Initiatives
Initiatives Points
Productivity initiatives
Adopt new methods of construction
Use machinery for construction
Adopt new materials for construction
Effective resources planning and plan to improve
productivity
Partnering HDB in R & D projects 20
Sustainable construction initiatives
Use energy efficient appliances for site office
Use UV film or blinds for site office window
Use recycle water for toilet flushing Other initiatives promote sustainable construction
Award 2 points for each productivity and sustainable construction
initiatives adopted subject to maximum of 20 points
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HDB Audit Checks
For our audits to be more impactful, the audit
outcome shall be considered in the assessment
Description Points
Take the worst report during assessment period and
deduct 0.4 point for each non-compliance and the
minimum score would be 0
PD / PDA audit
CAT audit
Safety audit by BID
C&S audit by BID
3
33
3
Timeliness in closing up audit report 8
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Implementation
To implement the proposed changes from next
assessment period (Apr 12 to Sep 12) onwards
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End