Integrated Urbanism - Infrastructure & Property Development Summit - May 2010 , Dubai

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The beauty and tranquility of living along water is something that appeals since beginning of time. It is an indicator of the social stature and needs to be done in a multi disciplinary approach …

The beauty and tranquility of living along water is something that appeals since beginning of time. It is an indicator of the social stature and needs to be done in a multi disciplinary approach termed in the presentation as “Integrated Urbanism”. Issues of sustainability, coastal planning best practices & pitfalls in addition to reclamation levels and dredging / marine constructions are discussed in good depth.

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  • 1. Infrastructure & Property Development MEA Summit May 2010 , Dubai Integrated Urbanism–Mega Coastal DevelopmentsLoay Ghazaleh – B. Sc. Civil Eng. , MBA 1
  • 2. At the Onset, Some General ConceptsInteracting disciplines to integrate multiple uses such as: Sea ports, Marinas and Fishing Harbours Piers and Docks Beaches & Groynes Shoreline Protection Coastal Navigation , Waterways Roads (Corniche Roads) and Railways Utilities Recreational Facilities Residential Development Commercial , Light Industrial Development Sand Mining, Borrow Areas Storm Water & Effluent Disposal Archaeological & Historic Sites Natural Environment The beauty and tranquility of living along water is something that appeals to many since beginning of time. It is an indicator of the social stature. 2
  • 3. Interacting Themes In Coastal Developments 3
  • 4. Environment Structural Plans / Protection Regulations Zoning / Mix Use Facility Management Options Sustainable PublicTraffic / Internal Circulation Water Front Transportation / Connectivity Development Design / Value Coastal Planning / Engineering Architecture Green Concepts Infrastructure 4
  • 5. Sustainability PrinciplesThe objective is to utilize resource patterns thatmeet short and long terms needs leading to: Sustainability is a Economic prosperity progressive process and a Social development more holistic approach to Environmental protection ensure conservation and protection by seeking solutions thru seamless integration of activities that minimizes material & energy resource use and consumption, whilst maximizing the well-being of occupants, contributing positively to society and recognizes, protects and enhances the ecology, through re- thinking standards and effective management. 5
  • 6. Coastal Development In GCC In Bahrain reclamation level database was created in conjunction with Dredging Dubai Municipality has and Marine Construction set up a website Manual “Dubai Coastal Zone Monitoring” for online information including real-time hydrographic data. Astronomical Storm Events Tide events Surge eventsReclamation =Tidal High Water+ Extreme storm surge+ Wave setup+ Clearance for global SLR+ Safety clearance 6
  • 7. Revetments , Quay Walls & Structures In Use ACCROPODES Artificial Reefs 7
  • 8. Before We Discuss Coastal Development Integration, Always Consider; The Functional Guidelines• Start right, engage all principle disciplines• Grouping of structures: Towards Sea• Improve accessibility/safety by proper junction spacing• Create both -Public & Private Beaches• Create Buffer Zone Promenade/ Cornish Pedestrian Walkway• Achieve a Win-Win situation between Public and Private Demands• Avoid intensive high development on waterfront (massive)• Avoid blocked Views, locate low rise development on water front• Allow for road reserve & parking• Allow for recreational activity for public• Landscape green buffer, large taller trees to frame up the view• Provide shaded walkways , colonnades utilizing breezes and hear protection. Also Consider What You Control• Project Development Code Regulations –Zoning Authorities.• Project Infrastructure• Project wise population and traffic• Building Regulations• Renewable / Alternative Energy sources , Controlling Potable Water Use• Recycling resources particularly sewage and solid waste• Energy Monitoring & Control• Construction Materials & Waste• The Built Environment, the Marine Environment• Building Management Systems 8• Locations of heat rejection sources
  • 9. Major Coastal Development Projects in Bahrain 9
  • 10. Major Coastal Development Projects in BahrainValue Engineering - reflected in the economic use of rock resulting in the use of 15Different grades of armor and under layer rock; reclamation level reduction by halfMaster Planning - Too many Islands & Large number of bridges lead to reducedfunctionality and high maintenance costs. 10
  • 11. Major Coastal Development Projects in Bahrain 11
  • 12. Major Coastal Development Projects in Bahrain 12
  • 13. Major Coastal Development Projects in Bahrain 13
  • 14. Coastal Planning Best Practices• Planning for accessibility. Avoid - Single Access to Development for: Day to day transport demand & evacuation. Comprehensive hydrodynamic model for whole marine region• Transport planning for fully-developed future scenario• Follow phenomena that are proven to function by nature• Preventing erosion and alongshore drift• Utilities – water, electrical and sewerage handling and disposal• Marina/dock operations , Fuel/chemical storage and handling• Dredging Turbidity Controls• Avoid release of fine sediments during construction.• Artificial Beaches are feasible where near shore slopes are gentle and depths relatively shallow.• The beach shall be stable, provide wave exposure where possible bounded by headland structures, outfall jetties or breakwaters to minimize sand losses.• Protective / Stabilizing structures , Breakwaters must not generate dangerous rip currents• Good quality sand fills for construction of the artificial beach• Good bathing water quality (clear and clean water) and aesthetically pleasing• They have one or more connections to the sea, tidal inlets.• The inlets shall be stable and open at all times of the year• Optimize interior waterway design Adoption of a river-like canal structure for adequate flushing by tide The Canals increase in size downstream mimicking a natural river configuration.• Good flushing conditions which contribute to maintaining a good water quality• controlled discharge/seepage of pollutants (storm water, brine, cooling water, pesticides and nutrients)• Environmental impacts are cumulative 14
  • 15. Urban Planning Best Practices 15
  • 16. Urban Planning Best Practices 16
  • 17. Coastal Planning Best Practices - Marine / Coastal ReclamationMarine Issues - Use Modeling To Maintain Water Quality Beaches stabilization thru• Hydrodynamic & Water Quality Modeling• Simulate Circulation ,Natural Tides ,water currents and Flushing• Simulate Response to Pollutant Loads & Identify extent of Human impacts, irrigation and discharge managementEBS (Environmental Baseline Study) and EIA are needed to identify preserve and integrate marine life and habitatReclamation Improvements• Re-distribute land masses (Reclamation Ratio Indicator = number of cubic meters of sand for each square meter of surface area)• Shaping of the land masses• Water circulation• Edge structures• Function and operation of the development elements• Development opportunitiesEnvironmental Benefits to Investigations;• Identification of suitable borrows areas from recent seismic survey data.• Identification of least-environmentally sensitive areas for reclamation projects• Conduct Environmental Impact Assessment (EIA) to enable the formulation of• remediation measures; i.e. artificial coral reefs,• Strike a balance between benefits of reclamation and impact on environment.• A Monitoring Unit will oversee construction to ensure that the conditions stipulated in the EIA are implemented.• Address the problem of silt formation employing water boxes, silt screens, etc.• Adopt best methods of dredging & reclamation to prevent damage to marine life.• Preserve fishing grounds to promote marine life growth.• Provide land for development and housing without compromising the ecology. 17
  • 18. Coastal Planning Best Practices - Habitat & Environmental IssuesAn important component of the natural vegetation resources of coastal zones.• Protect existing sea grass beds.• Planting new mangroves:• Protect and regenerate eco-systems• Mitigate or even surpass the adverse effects of reclamationEnvironmental Impacts - long-term / permanent and irreversible• Direct habitat loss (dredging / reclamation), followed by changes in substrate and bathymetry possibly preventing re-colonization• Indirect impacts from water quality deterioration• Indirect impacts from changes in hydrodynamic regime• Indirect impacts from noise / general disturbance• Dredging / reclamation remove benthic habitats through excavation and burial• Dredged areas, due to the changed bathymetry and substrate, are not always conducive to re- colonization by the same marine organisms• Steep sides to dredged channels and fixed structures relatively quickly attract a diverse fouling community that will include a variety of sponges, ascidians, bivalves, and fish 18
  • 19. Finally, Pitfall AreasPoor Project Strategy Iconic / Political Sustainability Not - Planning & Driven Urban Fully Embraced / Development Planning Practices Valued Key Check Items!•Maintain project link to the corporate policy at all times. Sustainability is•Base Project Planning on sound financial / engineering principles! most cost-effective•Build best value /balanced project team and allow ideas at every level when integrated at•Plan the use / function and quality at the lowest life-cycle Cost the planning stage.•In depth examination of the local context & value / market drivers. Sustainability at•Involve the Architect / PM with the business plan, services cost sharing infrastructure level•Adopt best practices in mix use Urban Planning , avoid GFA maximization gives maximum•Early stakeholders engagement, especially the Government / Regulators impact•Early intervention and assessment of sustainability & efficiencies•Keep the Project interesting, financially feasible, build-able, phase-able! Dense, mixed-use•Consider LEED, STAR, ESTIDAMA! & Watch for the Environment Developments can be a green•Apply Value Engineering throughout the project various stages machines•Plan for just in time infrastructure , facility management, utility connections 19
  • 20. loayg@works.gov.bh; loay.ghz@gmail.com