People

Dr Ahmed W A Hammad

Construction Management and Property, Construction Project Management

Dr Ahmed WA Hammad is the coordinator for Master of Construction Project Management at the Faculty of Built Environment, UNSW Sydney. His research focuses on the use of technology including Building Information Modelling (BIM) and machine-learning based operational research (OR) methods for enhancing decision-making in construction. His past work included novel approaches to solving OR problems in construction including the site layout planning problem, facility location problem, the network design problem, vehicle routing problem (VRP), building and interior space layout planning, and urban planning. Dr Hammad’s expertise lays in developing Mixed Integer Programming (MIP) Models and Bi-level Programming Models, together with accompanying exact solution approaches for large scale instances. His work specifically focusses on decomposition algorithms where optimality of the solution can be guaranteed. He is a pioneer in the area of integrating OR with digital engineering methods for the purpose of enhancing sustainability in the built environment. His most recent work involves a BIM-based platform for optimising material selection using a life cycle analysis (LCA) method. Dr Hammad has an extensive industry background in digital engineering, road design, construction engineering and interior design. Prior to joining academia, Dr Hammad worked as a civil engineer, where he acquired key skills in structural design, project management and coordination, and project scheduling.

Dr Hammad teaches in the following areas:

1) Building Information Modelling (BIM)

2) Construction Materials (Concrete, Steel, Timber and Masonry)

3) Operational Research (OR)

4) Construction Law

5) Risk Management

6) Construction Economics

7) Low-rise Construction

 

Supervision Area: 

- Machine Learning and AI

- Mathematical Programming

- BIM

- Construction Economics

- Sustainability Design

- Construction Law

 

Supervising: 

In Lab: 5 PhD Students

Graduated: 2 PhD Students

Topics:

- Machine Learning for Disaster Management

- Mathematical Optimisation of space layout in schools to enhance safety during building evacuations

- Stochastic Programming for Resource Allocation in Construction

- BIM Technology Investment Optimisation in Organisations 

- A collaborative system to optimize the role of social procurement in providing innovative solutions to youth unemployment in Australia

- Challenges facing Refugees and Skilled Migrants in the Construction Workforce

- Optimisation framework for Life Cycle Analysis (LCA) integrated with BIM

Publications:
Book Chapters

Figueiredo K; Hammad A; Haddad A, 2019, 'Sustainable Construction Achieved Through Life Cycle Assessment: Methodology, Limitations and the Way Forward', in Encyclopedia of Renewable and Sustainable Materials, pp. 576 - 583, http://dx.doi.org/10.1016/B978-0-12-803581-8.11360-8

Hammad A; Akbar Nezhad A; Rey D, 2018, 'Accounting for Embodied Carbon Emissions in Planning and Optimisation of Transport Operations During Construction', in Pomponi F; De Wolf C; Moncaster A (ed.), Embodied Carbon in Buildings : Measurement, Management, and Mitigation, Springer, pp. 301 - 321, http://dx.doi.org/10.1007/978-3-319-72796-7_14

Hammad A; Akbar Nezhad A; Rey D, 2017, 'Estimation of Input Parameters Used in Site Layout Planning Through Integration of BIM and Project Schedules', in Peng W; Haijiang L; Xiangyu W (ed.), Integrated Building Information Modelling, Bentham Science Publishers (ebooks), Sharjah UAE, pp. 121 - 157, http://dx.doi.org/10.2174/9781681084572117010008

Hammad A; Akbar Nezhad A; Rey D, 2016, 'Accounting for Noise Pollution in Planning of Smart Cities', in Smart Cities as a Solution for Reducing Urban Waste and Pollution, IGI Global, pp. 149 - 196, http://dx.doi.org/10.4018/978-1-5225-0302-6.ch006

Journal articles

Hong Y; Hammad AWA; Akbarnezhad A; Arashpour M, 2020, 'A neural network approach to predicting the net costs associated with BIM adoption', Automation in Construction, vol. 119, http://dx.doi.org/10.1016/j.autcon.2020.103306

Froufe MM; Chinelli CK; Guedes ALA; Haddad AN; Hammad AWA; Soares CAP, 2020, 'Smart Buildings: Systems and Drivers', Buildings, vol. 10, pp. 153 - 153, http://dx.doi.org/10.3390/buildings10090153

Rosa A; Hammad AWA; Qualharini E; Vazquez E; Haddad A, 2020, 'Smoldering fire propagation in corn grain: an experimental study', Results in Engineering, vol. 7, http://dx.doi.org/10.1016/j.rineng.2020.100151

Hammad AWA, 2020, 'A multi-objective construction site layout planning problem solved through integration of location and traffic assignment models', Construction Management and Economics, vol. 38, pp. 756 - 772, http://dx.doi.org/10.1080/01446193.2019.1659510

Hammad AW; Grzybowska H; Sutrisna M; Akbarnezhad A; Haddad A, 2020, 'A novel mathematical optimisation model for the scheduling of activities in modular construction factories', Construction Management and Economics, vol. 38, pp. 534 - 551, http://dx.doi.org/10.1080/01446193.2019.1682174

Hammad AWA; Rey D; Bu-Qammaz A; Grzybowska H; Akbarnezhad A, 2020, 'Mathematical optimization in enhancing the sustainability of aircraft trajectory: A review', International Journal of Sustainable Transportation, vol. 14, pp. 413 - 436, http://dx.doi.org/10.1080/15568318.2019.1570403

Molinaro R; Najjar MK; Hammad AWA; Haddad A; Vazquez E, 2020, 'Urban Development Index (UDI): A comparison between the city of Rio de Janeiro and four other global cities', Sustainability (Switzerland), vol. 12, http://dx.doi.org/10.3390/su12030823

Lima EG; Chinelli CK; Guedes ALA; Vazquez EG; Hammad AWA; Haddad AN; Soares CAP, 2020, 'Smart and sustainable cities: The main guidelines of city statute for increasing the intelligence of Brazilian cities', Sustainability (Switzerland), vol. 12, http://dx.doi.org/10.3390/su12031025

Hong Y; Hammad A; Zhong X; Wang B; Akbarnezhad A, 2020, 'Comparative Modeling Approach to Capture the Differences in BIM Adoption Decision-Making Process in Australia and China', Journal of Construction Engineering and Management, vol. 146, http://dx.doi.org/10.1061/(ASCE)CO.1943-7862.0001746

da Silva M; Najjar MK; Hammad AWA; Haddad A; Vazquez E, 2020, 'Assessing the retention capacity of an experimental green roof prototype', Water (Switzerland), vol. 12, http://dx.doi.org/10.3390/w12010090

Hong Y; Hammad AWA; Akbarnezhad A, 2019, 'Impact of organization size and project type on BIM adoption in the Chinese construction market', Construction Management and Economics, vol. 37, pp. 675 - 691, http://dx.doi.org/10.1080/01446193.2019.1575515

Najjar MK; Figueiredo K; Hammad AWA; Tam VWY; Evangelista ACJ; Haddad A, 2019, 'A framework to estimate heat energy loss in building operation', Journal of Cleaner Production, vol. 235, pp. 789 - 800, http://dx.doi.org/10.1016/j.jclepro.2019.07.026

Najjar M; Figueiredo K; Hammad AWA; Haddad A, 2019, 'Integrated optimization with building information modeling and life cycle assessment for generating energy efficient buildings', Applied Energy, vol. 250, pp. 1366 - 1382, http://dx.doi.org/10.1016/j.apenergy.2019.05.101

Hammad AW; Akbarnezhad A; Wu P; Wang X; Haddad A, 2019, 'Building information modelling-based framework to contrast conventional and modular construction methods through selected sustainability factors', Journal of Cleaner Production, vol. 228, pp. 1264 - 1281, http://dx.doi.org/10.1016/j.jclepro.2019.04.150

Najjar MK; Tam VWY; Di Gregorio LT; Evangelista ACJ; Hammad AWA; Haddad A, 2019, 'Integrating parametric analysis with building information modeling to improve energy performance of construction projects', Energies, vol. 12, http://dx.doi.org/10.3390/en12081515

Hong Y; Hammad AWA; Akbarnezhad A, 2019, 'Forecasting the net costs to organisations of building information modelling (BIM) implementation at different levels of development (LOD)', Journal of Information Technology in Construction, vol. 24, pp. 588 - 603, http://dx.doi.org/10.36680/J.ITCON.2019.033

Hammad AWA; Akbarnezhad A; Haddad A; Vazquez EG, 2019, 'Sustainable zoning, land-use allocation and facility location optimisation in smart cities', Energies, vol. 12, http://dx.doi.org/10.3390/en12071318

Hammad AWA, 2019, 'A Bilevel Multiobjective Optimisation Approach for Solving the Evacuation Location Assignment Problem', Advances in Civil Engineering, vol. 2019, http://dx.doi.org/10.1155/2019/6052931

Hammad AWA, 2019, 'Minimising the deviation between predicted and actual building performance via use of neural networks and BIM', Buildings, vol. 9, http://dx.doi.org/10.3390/buildings9050131

Najjar MK; Qualharini EL; Hammad AWA; Boer D; Haddad A, 2019, 'Framework for a systematic parametric analysis to maximize energy output of PV modules using an experimental design', Sustainability (Switzerland), vol. 11, http://dx.doi.org/10.3390/su11102992

Moussavi Nadoushani ZS; Hammad AWA; Akbarnezhad A, 2018, 'Closure to "location Optimization of Tower Crane and Allocation of Material Supply Points in a Construction Site Considering Operating and Rental Costs" by Zahra Sadat Moussavi Nadoushani, Ahmed W. A. Hammad, and Ali Akbarnezhad', Journal of Construction Engineering and Management, vol. 144, http://dx.doi.org/10.1061/(ASCE)CO.1943-7862.0001558

Moussavi Nadoushani ZS; Hammad AWA; Xiao J; Akbarnezhad A, 2018, 'Minimizing cutting wastes of reinforcing steel bars through optimizing lap splicing within reinforced concrete elements', Construction and Building Materials, vol. 185, pp. 600 - 608, http://dx.doi.org/10.1016/j.conbuildmat.2018.07.023

Hammad A; Akbarnezhad A; Oldfield PF, 2018, 'Optimising Embodied Carbon and U-value in Load Bearing Walls: A Mathematical Bi-Objective Mixed Integer Programming Approach', Energy and Buildings, vol. 174, pp. 657 - 671, http://dx.doi.org/10.1016/j.enbuild.2018.05.061

Hammad A; Nezhad AA; Grzybowska H; Wu P; Wang X, 2018, 'Mathematical Optimisation of Location and Design of Windows by Considering Energy Performance, Installation Cost and Privacy of Buildings', Smart and Sustainable Built Environment. Special Issue: Sustainable Planning, Urban Design & Architecture in the Middle East & North Africa region, http://dx.doi.org/10.1108/SASBE-11-2017-0070

Hammad AWA; Akbarnezhad A, 2018, 'Sustainable lighting layout in urban areas: Maximizing implicit coverage and minimizing installation cost', Frontiers in Built Environment, vol. 4, http://dx.doi.org/10.3389/fbuil.2018.00042

Hammad A; Akbarnezhad A; Grzybowska H; We P; Wang X, 2018, 'Mathematical Optimisation of Location and Design of Windows by Considering Energy Performance, Lighting and Privacy of Buildings', Smart and Sustainable Built Environment. Special Issue: Sustainable Planning, Urban Design & Architecture in the Middle East & North Africa region 04 Apr 2018, http://dx.doi.org/10.1108/SASBE-11-2017-0070

Hammad AWA; Akbarnezhad A; Rey D, 2017, 'Sustainable urban facility location: Minimising noise pollution and network congestion', Transportation Research Part E: Logistics and Transportation Review, vol. 107, pp. 38 - 59, http://dx.doi.org/10.1016/j.tre.2017.09.005

Hammad AWA; Akbarnezhad A; Rey D, 2017, 'Bilevel Mixed-Integer Linear Programming Model for Solving the Single Airport Location Problem', Journal of Computing in Civil Engineering, vol. 31, http://dx.doi.org/10.1061/(ASCE)CP.1943-5487.0000697

Hammad AWA; Rey D; Akbarnezhad A, 2017, 'A cutting plane algorithm for the site layout planning problem with travel barriers', Computers and Operations Research, vol. 82, pp. 36 - 51, http://dx.doi.org/10.1016/j.cor.2017.01.005

Hong Y; Hammad A; Sepasgozar S; Akbar Nezhad A, 2017, 'BIM Adoption Model for Small and Medium Construction Organisations in Australia', Engineering, Construction and Architectural Management, vol. accepted for publication, in press, http://dx.doi.org/10.1108/ECAM-04-2017-0064

Moussavi Nadoushani ZS; Hammad A; Akbar Nezhad A, 2016, 'Location Optimization of Tower Crane and Allocation of Material Supply Points in a Construction Site Considering Operating and Rental Costs', Journal of Construction Engineering and Management, vol. 143, http://dx.doi.org/10.1061/(ASCE)CO.1943-7862.0001215

Hammad AW; Akbarnezhad A; Rey D; Waller ST, 2015, 'A Computational Method for Estimating Travel Frequencies in Site Layout Planning', Journal of Construction Engineering and Management, vol. 142, http://dx.doi.org/10.1061/(ASCE)CO.1943-7862.0001086

Hammad AW; Akbarnezhad A; Rey D, 2015, 'A multi-objective mixed integer nonlinear programming model for construction site layout planning to minimise noise pollution and transport costs', Automation in Construction, vol. 61, pp. 73 - 85, http://dx.doi.org/10.1016/j.autcon.2015.10.010

Conference Papers

Munawar HS; Hammad AWA; Ullah F; Ali TH, 2019, 'After the Flood: A Novel Application of Image Processing and Machine Learning for Post-Flood Disaster Management', in 2nd International Conference on Sustainable Development in Civil Engineering (ICSDC 2019), Jamshoro Pakistan, MUET, Pakistan, Jamshoro Pakistan, presented at 2nd International Conference on Sustainable Development in Civil Engineering (ICSDC 2019), Jamshoro Pakistan, 05 December 2019 - 07 December 2019, https://www.researchgate.net/profile/Fahim_Ullah3/publication/337773028_After_the_Flood_A_Novel_Application_of_Image_Processing_and_Machine_Learning_for_Post-Flood_Disaster_Management/links/5de98833a6fdcc28370938f4/After-the-Flood-A-Novel-Application-of-Image-Processing-and-Machine-Learning-for-Post-Flood-Disaster-Management.pdf

Hammad A, 2018, 'Design Economics Through Use of BIM as a Decision Support System', in 42nd AUBEA: Australasian Universities Building Education Association Conference At: Singapore, Singapore, presented at AUBEA, Singapore, 26 September 2018, https://www.researchgate.net/publication/328224442_Design_Economics_through_use_of_BIM_as_a_Decision_Support_System

Hammad A, 2018, 'Exploring the potential for achieving the triple bottom-line of sustainability through offsite manufacturing', in SUSTAINABILITY, Singapore, presented at AUBEA, Singapore, 26 September 2018, https://www.researchgate.net/profile/Olatunji_Abisuga/publication/329644625_A_framework_for_modelling_FM_organizational_response_to_users'_post-occupancy_feedback/links/5c13927ca6fdcc494ff38723/A-framework-for-modelling-FM-organizational-response-to-users-post-occupancy-feedback.pdf#page=49

Hammad A; Ramanayaka C, 2018, 'EDUCATING BUILDING PROFESSIONALS FOR THE FUTURE IN THE GLOBALISED WORLD', in Hammad A (ed.), Curtin University, Singapore, presented at AUBEA, Singapore, 26 September 2018, https://www.icontract.ai/uploads/1/0/6/1/106114857/barriers_and_drivers_of_intelligent_contract_implementation_in_construction_-_alan_mcnamara.pdf

Abidoye R, 2018, 'The application of advanced property valuation methods in practice: Evidence from Hong Kong and Nigeria', in Do K; Sutrisna M; Hammad A; Ramanayaka C (eds.), 42nd AUBEA Conference 2018: Educating Building Professionals for the Future in the Globalised World, AUBEA, Singapore, pp. 151 - 158, presented at 42nd AUBEA Conference 2018, Singapore, 26 September 2018 - 28 September 2018, https://docs.wixstatic.com/ugd/94be57_a1986413edcf4b18aec5aab332b8883b.pdf

Hammad AWA; Wu P; Hammad M; Haddad A; Wang X, 2018, 'Mathematical optimisation of rail station location and route design in urban regions through minimising noise pollution', in ISARC 2018 - 35th International Symposium on Automation and Robotics in Construction and International AEC/FM Hackathon: The Future of Building Things, International Association for Automation and Robotics in Construction (IAARC), Berlin, Germany, pp. 1199 - 1204, presented at 35th International Symposium on Automation and Robotics in Construction (ISARC 2018) and the International AEC/FM Hackathon, Berlin, Germany, 20 July 2018 - 25 July 2018, http://dx.doi.org/10.22260/ISARC2018/0166

Fragoso R; Hammad A; Haddad A; Jonescu E; Do K, 2018, 'Comparative economic-environmental feasibility of reinforced concrete and laminated steel structures', Singapore, presented at AUBEA, Singapore

Figueiredo K; Hammad A; Haddad A; Do K; Jonescu E, 2018, 'Challenges in integrating LCSA and MCDA approaches in building projects: limitations and the way forward', Singapore, presented at AUBEA, Singapore

Hammad AW; Akbar nezhad A, 2017, 'Modular vs Conventional Construction: A Multi-Criteria Framework Approach', in 2017 Proceedings of the 34rd ISARC, Taipei, Taiwan, Taipei, Taiwan, pp. 214 - 220, presented at 2017 Proceedings of the 34rd ISARC, Taipei, Taiwan, 28 June 2017 - 01 July 2017, http://dx.doi.org/10.22260/ISARC2017/0029

Hammad A; Akbarnezhad A; Rey D; Grzybowska H, 2017, 'Decision Support System for Modular Construction Scheduling', in Proceedings of the 34th International Symposium on Automation and Robotics in Construction (ISARC), Taipei, Taiwan., pp. 302 - 307, presented at 34th International Symposium on Automation and Robotics in Construction, Taipei, Taiwan., 28 June 2017 - 01 July 2017

Hammad AW; Rey ; Akbar nezhad , 2016, 'A Bi-level Mixed Integer Programming Model to Solve the Multi-Servicing Facility Location Problem, Minimising Negative Impacts Due to an Existing Semi-Obnoxious Facility', in Sarker R; Abbass HA; Dunstall S; Kilby P; Davis R; Young L (eds.), Lecture Notes in Management and Industrial Engineering book series, SPRINGER INTERNATIONAL PUBLISHING AG, Canberra, Australia, pp. 381 - 395, presented at Data and Decision Sciences in Action pp 381-395, Canberra, Australia, 16 November 2016 - 18 August 2017, http://dx.doi.org/10.1007/978-3-319-55914-8_28

Nadoushani ZSM; Hammad AW; Akbarnezhad A, 2016, 'A framework for optimizing lap splice positions within concrete elements to minimize cutting waste of steel bars', in ISARC 2016 - 33rd International Symposium on Automation and Robotics in Construction, Auburn University, Alabama, USA, pp. 444 - 451, presented at 33 rd International Symposium on Automation and Robotics in Construction (ISARC 2016), Auburn University, Alabama, USA, 18 July 2016 - 21 July 2016

Hammad AWA; Akbarnezhad A; Rey D, 2016, 'A multi-objective mixed integer programming model for minimising obtrusive effects and installation costs of night-time lighting on construction sites', in ISARC 2016 - 33rd International Symposium on Automation and Robotics in Construction, pp. 505 - 514, http://dx.doi.org/10.22260/isarc2016/0061

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