monitoring programme review

06-Mar-14 Damac Properties

Damac Heights at Dubai MarinaMonitoring Programme Review

AECOM Damac Heights Monitoring Programme Review 2

Monitoring Programme Review

Prepared forDamac Properties

Prepared bySameh Kandilwww.aecom.com

In association withAbhishek Kumar06-Mar-14

© AECOM

The information contained in this document is solely for the use of the client identified on thecover sheet, and for the purposes specified herein. AECOM undertakes no duty and acceptsno responsibility to any third party that may rely on this document.

All rights reserved. No section or element of this document may be removed from thisdocument, reproduced, electronically stored, or transmitted in any form without the writtenpermission of AECOM.

Quality Information

Document Monitoring Programme Review

Ref 60316653-DH-RPT-20140302-R0 Date 06 March 2014

Prepared by Sameh Kandil Reviewed by Samer H. Skaik - Fuad Hassan

1.1.1.1 Revision History

Revision Revision Date Details

Authorized

Name/Position Signature

REV # 00 06 March 2014

Fuad Hassan

Program Director


Contents

1.0 General Impression .......................................................................................................................... 4

2.0 Work Breakdown Structure ............................................................................................................... 4

3.0 Schedule Activities........................................................................................................................... 5

4.0 Activities Duration ............................................................................................................................. 8

5.0 Activities Relationships ..................................................................................................................... 8

6.0 Project Calendars ............................................................................................................................. 8

7.0 Activities Floats and Lags ................................................................................................................. 9

8.0 Data Date ....................................................................................................................................... 10

9.0 Project Critical Path ........................................................................................................................ 10

10.0 Provisional Sum and PC Items Nominations ................................................................................ 11

11.0 Progress Measurments ................................................................................................................ 12

12.0 Cash Flow and Resources Curves ................................................................................................ 14

13.0 General Requirments .................................................................................................................... 14

Appendix

Attachment 1 – Original Duration Report ............................................................................................. 15Attachment 2 – Lagsn Report .............................................................................................................. 16Attachment 3 – Decimal Float Report .................................................................................................. 17Attachment 4 – Schedule of Value ....................................................................................................... 18Attachment 5 – Proposed Schedule Report ......................................................................................... 19

List of Figure

Figure 1 SF relationship and Negative Lag ….…………………………………………………………………………….9

Figure 2 Negative Float …...…………………………………………………………………….………….…………….….10


1 General ImpressionThe Contractual Clause 14.1 Programme for Damac Heights Project was submitted by ARABTEC via a letter dated 02 March2014, Ref: ATC/AECOM/3.3.2/DH/SB/03/3088 for Damac/AECOM (Supervision Consultant) for review and approval.

After reviewing the contractor programme it has been observed that there are few shortfalls in MEP activities, shop drawingsactivities, long lead items activities, proper progress monitoring system, proper cash flow calculations, logic used in theprogramme, impractical critical path, lack of activity detailing for some work packages, impractical work sequencing, etc. Theseare explained in detail with specific examples in the forthcoming pages.

Supervision Consultant’s above said review has also been discussed in detail with Damac’s Senior Project Manager andSenior Planning Engineer. Therefore, the programme is not approved in present form and the contractor is advised to revisethe same and resubmit for further review and approval of the Employer / AECOM.

2 Work Breakdown Structure

2.1 The project schedule has to be structured under the following headings phases;

General; will include Key Dates, Employer Key Dates, Issuance of valid NOCs, Authorities Approvals andConstruction Equipments.EngineeringProcurementConstructionSnaggingCommissioning

2.2 In all floors, the WBS for finishes work has to be broken down as follows; Dry Area. Wet Area. Lift Lobby. Staircase. Corridor (especially in the floors of branded branded flats because the corridors have special finishes ). Service Areas (electrical room, etc.).

2.3 In Podium 5, it is required to provide a separate WBS for each of the following areas; Swimming pool area. Health centre. Landscaping (soft and hard). Gymnasium Play Room Prayer Rooms Corridor Lift lobby

In Ground floor, it is required to provide a separate WBS for each of the following areas; Main entrance Fendi entrance Sub station LV room Generator room Garbage room Retail Parking area Service areas


Lift lobby for main entrance Lift lobby for Fendi entrance

In mechanical floors, it is required to provide a separate WBS for each of the mechanical rooms.

2.4 The WBS of MEP work has to be divided as follows; HVAC Electrical Sanitary Fire fighting Shaft works

2.5 The WBS of facade cladding and Roofing&Water Proofing system have to shifted from level 4 to level 3. Also the WBS Of stone cladding, roofing&water proofing and landscaping has to be shifted to level 3 under Podium 5.

3 Schedule Activities

3.1 In Podium 5, it is required to provide detailed finish activities for each of the following areas; Swimming pool area. Health centre. Landscaping (soft and hard). Gymnasium Play Room Prayer Rooms Corridor Lift lobby

In Ground floor, it is required to provide detailed finish activities for each of the following areas; Main entrance Fendi entrance Sub station LV room Generator room Garbage room Retail Parking area Service areas Lift lobby for main entrance Lift lobby for Fendi entrance

In mechanical floors, it is required to provide detailed finish activities for the mechanical rooms.

3.2 In order to monitor closely each activity in the schedule, the maximum original duration for each activity has to be 20days. In the contractor schedule many activities have durations greater than 20 days; these activities have to be brokendown to more manageable activities. The detailed activities are highly required for;

Roof Feature steel work. Facade Cladding Works.

Exception is permitted after a proper justification from the contractor.


# Appendix 1 shows duration report (duration more than 20 days) for contractor action.

3.3 There are some errors discovered in the schedule related to the activities (scope of work) as listed below;

There is no swimming pool in 65th and 66th floors. There are no parking areas in P5 floor. There are no wet areas in the mechanical floors. There are no wall paper in the 6th floor; however, the procurement task of wall paper is linked to that floor. There are no shower enclosure installations from 6th to 9th floors.

3.4 There are no detailed activities for procurement of MEP (long lead items). Important long lead equipment such aschillers, cooling towers, primary/secondary pumps and heat exchangers that will affect the wild air commencement aren’tincluded in the schedule.

3.5 There are no detailed activities for the installation of MEP works, the following activates have to be included as aminimum;

HVACDuct Installation & InsulationChilled Water Pipe Installation & InsulationCondensate Pipe InstallationFCU InstallationAir-Outlet Installation

Electrical Install Conduits in Wall Install Cable Trays & Trunking Wiring for Lighting & Power Wiring for Low Current System Cable Laying for Low Current System Cable Laying for Power DB installation, Dressing & Termination ELV Works Installation of Sockets Installation of Lighting Fittings

Sanitary Drainage Pipes in Wall Water Pipes in Wall H/L Hot&Cold Water Pipe Installation H/L Drainage Pipes Installation Drainage&Water Pipes Testing Electrical Water Heater Installation Floor Drain Fixing Installation of Sanitary ware

Fire Fighting Fire Fighting Pipe Hydro Static Test for Pipes Sprinkler Fixing Installation of Fire Extingusher&Blanket Fire Alarm Devices


Shaft Works HVAC riser works inside shafts Electrical riser works inside shafts Sanitary riser works inside shafts Fire fighting riser works inside shafts

Alternatively, the contractor can add one activity called ‘’MEP works inside shafts’’ but the steps have to be assigned on thisactivity to detail the type of works inside the shafts.

3.6 There aren’t sufficient details for the different shop drawings (Civil,Architectural, MEP,Facade,Lift,Swimming pool, etc.).The shop drawings have to be provided by floor basis. As a minimum the folloing details have to be provided;

Civil Works Shop drawings for Colums Shop Drawing for core wall Shop drawing for Slab Shop drawing for Ramp Shop drawing for Staricase Shop drawings for MEP equipment

Architectural Works Shop drawings for Wet Area Ceramic & Porcelain Layout Shop drawings for Reflected Ceiling Layout Shop drawings for Wardrobe Details Shop drawings for Floors Layout and Details Shop drawings for Vanity Counter Details Shop drawings for Kitchen Cabinet Details Shop drawings for Signage Layout and Details Shop drawings for Mirror Details Shop drawings for Doors Details Submission of Block Work Setting Out Plan for 1st Floor Submission of Handrail Layout & Details Submission of Parking Layout Submission of Traffic Sign Layout Submission of Roof's Water Proofing System Submission of Pool Deck Layout

MEP Works Shop drawings for Drainage Layout & Details (Low Level)

Shop drawings for LPG & Gas Detection Layout & Details

Shop drawings for MEP Builder Work Layout

Shop drawings for MEP Cordination Layout

Shop drawings for Water Supply Layout & Details

Shop drawings for Fire Fighting Layout & Details

Shop drawings for HVAC Layout & Details

Shop drawings for Lighting Layout & Details

Shop drawings for Power Layout & Details

Shop drawings for Fire Alarm Layout & Details

Shop drawings for CCTV,Access Control,Intercom Layout& Details


Shop drawings for ELV Layout & Details

Shop drawings for BMS Layout & Details

Shop drawings for Data & Telephone Layout & Details

Shop drawings for Drainage Layout & Details (HighLevel)

Swimming Pool Works

Shop drawings for Swimming Pool Layout & Details Shop drawings for Swimming Pool 's Water Prrofing

3.7 It is noticed that there are two task for the flooring work in the lift lobbies; lift lobby flooring and lift lobby flooring finalcoat. Please clarify the differences.

3.8 The schedule missed the GRP lining works for the water tanks.

3.9 The mock up works (Architectural, MEP, etc.) for flat 1 and flat 2 have to be detailed in the schedule. Also thecontractor has to consider the relationship, if it is existed, between the mock up and the site progress.

3.10 In the mechanical floors, the equipments (pumps, chillers, etc.) that will be installed have to be named and included inthe schedule.

4 Activities Duration

4.1 For the branded flats, the schedule missed the finishes works in the corridors.

4.2 The MEP installation works in the parking areas were set to be 45 days and installation of pumps and pipes were set to be46 days. Please split down both installations to more manageable activities with maximum 20 days duration for each.

5 Activities Relationships

5.1 Please clarify the followings; The schedule shows that the false ceiling tiles will be installed before producing the wild air. The schedule shows that ceiling suspension system will be executed first then cable pulling and pipe

pressure test will be done afterwards.

5.2 Lift lobby flooring and corridor flooring have to be executed after completion the work inside the apartments to avoid thepotential damages could result from materials and labour movement. Please adjust.

5.3 Fixing of monorail bracket has to start after casting the slab of level 87. Please adjust.

6 Project Calendars

6.1 The project calendars haven’t included all the public holidays in UAE and it was observed that 8 types of calendarswere used.


The project calendars have to include the following holidays;

Gregorian New Year. Islamic New Year. Birth of Prophet. Ascension of the Prophet. Mount Arafat Day. Eid Al Fitr. Eid Al Adha. UAE National Day.

The contractor has to use only three calendars as follows;

6 days calendar assigned for contractor/consultant works. 5 days calendar assigned for government approvals/ site inspections. 7 days calendar assigned for delivery period.

Also it has been observed that the activities for construction of core walls, verticals and horizontals contains 7 dayscalendar. Please clarify.

7 Activities Floats and Lags

7.1 It is not acceptable to use the relationship (SF) in the schedule, it has been observed that this type of relationship wasused for instance in the activity of DHDWAPA000 – Application Registration. Moreover, the negative lag also is not permittedin the schedule.

Figure 1


7.2 The schedule contains negative floats that have to be fixed.

Figure 2

7.3 The excessive use of lags isn’t acceptable without justification from the contractor side. Lags should be an activity. Lagsare only permitted till 20 days. Furthermore, NO LAGS are allowed on the project critical path.

# Appendix 2 shows a lag report (lags more than 20 days) for contractor action.

7.4 There are some activities that have a float of 0.13 day, 0.88 day and 1.13 days. The decimal numbers are not acceptablein the float calculations. The decimal numbers were shown in the schedule because the start time in these activities was16:00pm instead of 8:00 am. Therefore, the start time for all schedule activities has to be 8:00 am and the finish time has to be16:00 pm. Please adjust.

# Appendix 3 shows the float report.

8 Data Date

8.1 Based on the amendment letter that was signed by Arabtec on 24th February 2014, the monitoring schedule data date hasto be 24th February 2014 but not 19-Nov-13 as shown in Arabtec’s schedule.

8.2 The monitoring programme should record actual progress of works till the agreement signing date, 24th February 2014.

9 Project Critical Path

9.1 The critical path (only 247 activities out of 6,313) shown in the schedule isn’t acceptable and doesn’t reflect the real criticalscenario of constructing the tower. Having a correct critical path will help the project team prioritizing shop drawing,procurement and site work.DAMAC/AECOM suggest to combine the near critical path (0.13 to 1.13 days float) and the critical path (0 days float) to getfinal project critical path (all activities has to be 0 days float).

The classical critical path for towers projects has to include procuring of long lead items, PT drawings preparation/approval,concrete works, wild air, fit out works, some finishes due to the resources constraints, lifts, cladding, some finishes in uniquelevels (ground and podium floors) and finally the snagging/commissioning.


10 Provisional Sum/Prime Cost Items’ Nominations10.1 There is a lag of 146 days between manufacturing and shipment of BMU. Please clarify.

10.2 The procurement of Facade Lighting will consume long time (6 months). Please clarify.

10.3 The delivery of Hard/Soft landscaping and Water features is scheduled to be on Apr-15 but the commencement ofinstallation on Aug-15. Please clarify.

10.4 There is a lag of 80 days between the shop drawings approval and the fabrication of Roof Feature Steel Works.Please clarify.

10.5 The nomination dates of Home Automation (06-Dec-13), vanity counter (12-May-14), facade lighting (06-Jan-14) andwardrobes (15-May-14) are considered to be too early. Please clarify.

10.6 The nominations have to be regrouped under the followings WBSs;General Lifts Facade Cladding Facade Lighting BMU Roof Feature Equipments Roof Steel Structure MEP Light Fittings for Corridors and BOH

Branded ApartmentsFit out (Timber Doors, Wardrobe, Kitchen Cabinets, Vanity Counter, Ironmongery and Mirrors)

GRC Cornice Shower Enclosure Toilet Accessories Light Fittings Sanitary Wares&Fittings Mixers Timber doors for service roomsNon-Branded Apartments

Fit out (Timber Doors, Wardrobe, Kitchen Cabinets, Vanity Counter, Ironmongery and Mirrors Wardrobe GRC Cornice Shower Enclosure Toilet Accessories Light Fittings Sanitary Wares and Fittings Mixers Steel doors for service roomsGround Floor Fit out for the two entrances Lift cabin finishesPodium 5 Landscaping and Swimming Pool Health Club (sanitary ware-light fittings, lockers, steam, sauna, Jacuzzi, acrylic panel enclosure for

Jacuzzi, pool furniture).


11 Progress Measurements

11.1 For the structural work, it is required to assign steps for the activities of core wall, horizontals and verticals in order toestimate the physical progress % accurately. For instance, the steps for Construction of Horizontals could be as shown below;

Form work.Steel reinforcementPT cable placementMEPCasting concretePT stressed

11.2 It was noticed that the current assigned progress system is based on cost, however, many construction activities have notpossess budget cost plus the procurement, engineering and commissioning activities haven’t any assigned budget cost, thusany progress for them will not be reflected on the overall progress %.So that for a higher level progress consolidation, to arrive at the overall project progress summary a weight factoring system isto be implemented for covering all of phases of the contract. Consideration may be given to the summary level man-hourswhile finalizing the summary level weight factors for different work phases like engineering, procurement, snagging andcommissioning. For instance;

WBS Man-hours Weight Factor %Engineering 90,000 5%Procurement 90,000 10%Construction 630,000 75%Snagging 90,000 5%Commissioning 45,000 5%

To retain the consistency on progress reporting, the weight factors shall not be modified, during the course of the contract,except if approved or requested by Damac/AECOM.

11.3 For engineering and procurement activities, contractor shall propose to Damac/AECOM a set of steps to assess theactual physical progress. Actual progress shall be calculated at the lower level using progress steps.

Engineering WorkScales of progress should be calculated using controllable steps (in Primavera) of physical work achievements for eachgeneric step.

Step Name Step% Weight Step % CompleteForm Work 20%Steel Reinforcement 20%PT Cables Placement 20%MEP 10%Casting Concrete 5%PT Stressed 25%


Procurement WorkFor procurement, scales of progress shall be established to monitor each item from the inquiry stage up to the delivery andacceptance at site. Two different scales shall apply for equipment and bulk supply.

I. Equipment

II. Bulk Material

Sr. Item %

1 Shop drawing 1st submission 30%2 Editing by contractor 10%3 Shop drawing 2nd submission 20%4 Editing by contractor 5%5 Shop drawing 3th submission 20%6 Editing by contractor 5%7 Final Approval (Code A or B) 10%

Sr. Item %

1 Issue RFQ for vendors 2.5%2 Approval of one vendor 2.5%3 Issue Purchase Order 2.5%4 Vendor drawings submission 2.5%5 Vendor drawings approval 2.5%6 Vendor material submission 2.5%7 Vendor material approval 2.5%8 Fabrication 70%9 Inspection cleared and factory tested 2.5%10 Delivered to site 5%11 Equipment inspected by Arabtec QA/QC 2.5%12 DAMAC/AECOM inspected equipment at site 2.5%

Sr. Item %

1 Issue RFQ for vendors 5%2 Approval of one vendor 5%3 Vendor material submission 5%4 Vendor material approval 5%5 Place order for Bulk material 10%6 Material received at construction site (50% of

estimated quantity)30%

7 Material received at construction site (90% ofestimated quantity)

30%

8 All materials received & purchase order closed 10%


12 Cash Flow and Resource Curves

12.1 For preparation and reporting an accurate cash flow and a progress percentage based on cost, the cost loading has to bedone based on the schedule of values.# Appendix 4 shows sample of the said schedule of values.

12.2 Manpower histogram shall be submitted for civil works, architectural, MEP and other subcontracted packages.

12.3 Major commodities’ quantities (concrete, block, plaster, flooring, etc.) histograms shall be submitted.

12.4 Productivity rates that were the basis for duration calculations have to be submitted.

13 General Requirements

13.1 A Primavera layout for the schedule baseline and the regular updates will be provided by DAMAC/AECOM for contractoruse when reporting to DAMAC/AECOM.

# Appendix 5 shows the proposed schedule layout.

13.2 On various floors and areas the date on which the specialized sub-contractors will get access need to be shown in theprogramme. As a minimum the following activities need to be detailed in Contractor’s Cl 14.1 programme.

Access to MEP contractor to the flats, floor by floor. Access to MEP contractor to other critical areas like reception, roofs, pump rooms, LV rooms etc. Access to fit out contractor to various areas. Access to curtain wall contractor. Access to all nominated subcontractors need to be detailed. Access to swimming pool contractor including other water bodies. Access to lift sub-contractors for each lifts. Clearance from the sub-contractors is also need to be included in the program.

13.3 The contractor has to explain how the wild air will be produced. Will temporary chillers be used to produce the said wildair that are mandatory for fit out works or the contractor will use the tower’s chillers?

13.4 Arabtec has to maintain the original structure completion date that was 04 April 2015.

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