【2019】丘吉爾科技商務園城市設計(英文版)(138頁).pdf
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上傳人:ven****re
編號:23684
2020-12-14
138頁
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1、MASTER PLAN Churchill Technology A vibrant economic engine that builds on existing recreational, business and educational amenities to attract tourists, businesses and residents; High-quality development that is more livable, resilient and sustainable through the integration of green infrastructure;2、 A collection of stable mixed-use neighborhoods that accommodate a diverse residential base; Enhanced mobility through better integration of residential, institutional, recreational, commercial and other land uses; and A safe and attractive gateway to the natural resources of Jefferson Parish that l3、ie outside the hurricane protection levee. Population projections that resulted from the Fairfield Strategic Plan are significant, with a total daily population for the Fairfield area at more than 150,000 people, with over 50,000 residents and over 100,000 employees. BACKGROUND 2) heard through stak4、eholder listening sessions; and 3) known through experience and researching a series of local, peer, and aspirational benchmarks chosen for this project. 014 PROJECT GOALS: Create a Story for Churchill Park Catalyze Development Spark Job Creation THE MISSION OF CHURCHILL PARK “To spark development i5、n Fairfield by creating a unique identity that draws people and businesses to Churchill Park.” Promote Organized it is not intended to be an all-inclusive list of allowable uses. SUMMARY OF POTENTIAL APPROPRIATE USES AT CHURCHILL PARK 017 CHURCHILL PARK MASTER PLAN FEBRUARY 2019 1999 - 2000 JEFFERSO6、N EDGE July 2005 FILED DECLARATION OF COVENANTS, RESTRICTIONS AND RECIPROCAL SERVITUDES FOR NEARLY 480-ACRES OF LAND IDENTIFIED CHURCHILL SITE IN AVONDALE Summer 2003 HURRICANE KATRINA* August 2005 JEDCO HEADQUARTERS COMPLETED 2011 The Jefferson EDGEThe Jefferson EDGE Prepared for: Jefferson Parish 7、Economic Development Commission By: ANGELOU ECONOMIC ADVISORS INC. March 2000 THE DEVELOPMENT OF CHURCHILL PARK 2010 DEEPWATER HORIZON OIL SPILL AND SIGNIFICANT EVENTS AFFECTING THE REGION 2007 NATIONAL ECONOMIC RECESSION BEGINS *Churchill Park and the West Bank in general did not flood during the h8、urricane. 018 JEDCO CONFERENCE CENTER COMPLETED 2014 DELGADO COMMUNITY COLLEGE RIVER CITY CAMPUS OPENS 2018 2014 PATRICK F. TAYLOR SCIENCE AND TECHNOLOGY ACADEMY COMPLETED February 2019 UPDATED MASTER PLAN WE ARE HERE August 2015 JEFFERSON EDGE 2020 STRATEGY UPDATE CLOSING OF AVONDALE SHIPYARD Octob9、er 2014 HUEY P. LONG BRIDGE EXPANSION OPENS June 2013 019 CHURCHILL PARK MASTER PLAN FEBRUARY 2019 PROCESS however lower densities of development are advised in these areas and in particular Emergent Wetlands. SUITABILITY ANALYSIS 022 Factor Map Weight Attribute Score Notes Soil 15% Water 1 All clas10、sifications of soil available on site are unsuitable for devekopment and needs suitable soil piled on top for construction. Variations of unsuitable scores assigned, are based on frequency of flooding associated with each soil type based on National Cooperative Soil Survey data. Allemands Muck 2 Ken11、ner Muck 1 Barbarry Muck 3 Flood Plains 55% 100 Yr. Flood Plain 1 Flooding hazard based on the natural landscape of the site derived from FEMA data. 100 Yr. flood plains need to be avoided for developments to become LED accredited sites (unless large site improvements are implemented). Avoiding the 12、500 Yr. flood plain is advised for development. 500 Yr. Flood Plain 3 Areas with reduced risk due to levees 5 Wetlands 30% Emergent Wetlands 2 Jurisdictional wetlands are protected areas which development should not occur on. Lower development densities are advised on wetland areas based on the Nati13、onal Wetlands Inventory. Forested Wetlands 3 Jurisdictional Wetlands Restricted No wetland classification 5 Soil: The existing soil types on site, based on National Cooperative Soil Survey data, are three different categories of muck which are all unsuitable from a structural standpoint and any cons14、truction requires significant site work. However, these soil types have different water infiltration rates and flooding frequency, therefore, varying scores of unsuitability were assigned for each category of muck available. Based on scores given to each environmental element and a weighted overlay 15、of the three maps on the opposite page, with floodplain with the highest weight and soils the lowest, the land within the site was categorized with a range from suitable to unsuitable. The individual maps of each category are provided on the opposite page, while the overall weighted suitability map 16、is at left/below. Churchill Park Suitability Assessment 023 CHURCHILL PARK MASTER PLAN FEBRUARY 2019 Create a Destination “THE HEART”: CREATE A CENTRAL PLACE Informed by the vision for Churchill Park, master plan goals, the suitability assessment, and input gathered from the many stakeholders involv17、ed in the process, a design concept was developed to guide the design team in translating these inputs into a design for the Churchill Park Master Plan. This concept is based on three fundamental ideas: Create a central place that becomes the heart of Fairfield. Churchill Park will be the spark that18、 catalyzes the development of Fairfield. This central place will function as a main point of gathering within the park and for adjacent properties, creating an iconic public space for the West Bank. Embrace the environment and create a gateway to nature. The master plan seeks to embrace the natural 19、elements of the site which make it unique and connect it to the many natural resources beyond the site. Churchill Park is intended to weave a fabric of green spaces and trail connections throughout the development, and provide for a variety of open spaces, from plazas and parks, to ponds and wetland20、 preserves. Create a flexible framework for development of the site. The framework for the master plan is based on a flexible grid that can accommodate a wide variety of potential development types. The street hierarchy informed by this framework creates a highly connected site and opportunity for v21、arying character along different streets within the development. Primary streets have been designed to host the most highly visible building frontages and maintain continuity within and beyond the development, while secondary streets have a lower priority for key frontages, and can be interrupted to22、 accommodate specific site uses if necessary. The entire framework is undergirded by the premise of providing a safe, comfortable, and complete pedestrian and bicycle network. THE DESIGN CONCEPT 024 Celebrate the Environment A FLEXIBLE FRAMEWORK FOR DEVELOPMENT EMBRACE THE ENVIRONMENT prioritizing t23、he street grid ahead of unknown development will allow Churchill Park to evolve as a walkable, compact, connected, and efficient district. Blocks and lots vary in their depth to provide for the needs of yet unforeseen tenants. While no one can predict the needs of future users entirely, the master p24、lan can accommodate a variety of potential developments, from corporate campus to higher education, office, hotel, mixed-use, research, flex space, or medium density residential. Streets have been prioritized such that, if the needs arise from a major user, a segment of a lower priority street could25、 be eliminated while maintaining the integrity of the circulation network for the wider district. At nearly every point where it is possible on the plan, streets are shown extending beyond the boundaries of Churchill Park to connect with adjacent properties. Since Churchill Park is poised to spark t26、he development of Fairfield as a whole, it is critical that this site be planned with connections to future development that will occur on adjacent land. If the Fairfield area is developed by individual property owners without regard to what is happening on neighboring land, the result will be a dis27、connected and fragmented district, and a major missed opportunity for the West Bank and Jefferson Parish. FRAMEWORK PLAN 028 Churchill Park Illustrative Framework Plan MASTER PLAN QUANTIFIED: Total Acreage: 486 Developable Acres: 228 Acres of ROW: 108 Acres of Open Space: 118 Acres of Pond: 33 Miles28、 of Trails: 5+ Miles 029 CHURCHILL PARK MASTER PLAN FEBRUARY 2019 PLANNING FOR RESILIENCE As some of the last undeveloped land within the protected levee system, Churchill Park and the Fairfield area have the opportunity and responsibility to set a development precedent that is sustainable and resil29、ient in its design. This means not only environmental resilience, as is so often the focus of this area which is prone to major storm and flooding events, but also economic and social resilience. The plan for Churchill Park seeks to achieve all three of these resilience elements, creating greater ec30、onomic resilience by diversifying and expanding the economic base, creating greater social resilience by designing a development that provides space for interaction and recreation, and environmental resilience by integrating green infrastructure that helps mitigate flood risk. Local and regional res31、ilience planning efforts have informed the development of this plan, including Resilient New Orleans (which does not overlap in its geographic scope but overlaps in many issues addressed) as well as the Greater New Orleans Water Plan. While the Churchill Park site did not experience major flooding d32、uring Hurricane Katrina, the site shares many of the same threats as the rest of Greater New Orleans related to major storm events. With much of the Fairfield area still undeveloped, the area is also at risk for soil compaction and subsidence if development of this area attempts to exclude water rat33、her than embracing it. The conventional approach to continually pumping water out of urbanized areas not only bears environmental risk, but risks the economic cost of an unsustainable development which will need continual repair in future years, at cost to the Parish and businesses located here. The34、 Fairfield Strategic Plan provided a strong signal as to how this area must develop more resiliently by incorporating broad strategies to manage stormwater within large rights of way. The master plan for Churchill Park takes this strategy further, creating more detailed concepts for how this portion35、 of Fairfield can urbanize while maintaining or mimicking natural systems that mitigate and protect from climate related risks. The stormwater infrastructure designed for this site meets and exceeds the requirements of stormwater capture at an 80% assumed impervious cover for the entire long-term de36、velopment. Large portions of the site have been dedicated to resilient, low impact design strategies through an integrated network of ponds, wetlands, preserve area, and “green it is not intended as a central gathering space, but more as an area where users can walk, bicycle, and enjoy the natural a37、menities of the preserve. The Preserve is also intended to provide a trailhead access to a future levee trail; the trail would continue east and west along the top of the levee, connecting to recreational assets beyond and allowing park users to have views to Lake Cataouatche and Jean Lafitte nation38、al Historical Park and Preserve from the top of this piece of infrastructure that now is inaccessible. Preserve Illustrative Plan Interpretive Shelter Habitat Island with Interpretive Signage Pond Walking Paths Lakefront Development Parcels Boardwalk Levee Trail Levee Access/ Overlook WETLANDS WALK 39、One final area of the site that has been identified a major greenspace element is the Wetland Walk, going north south toward the west side of the site. This long strip of land contains a linear wetland, which has previously been designated as protected by the Corps of Engineers. This linear greenspa40、ce would buffer this area, while enhancing or perhaps expanding the wetland. This would function as another connecting piece of the greenspace and green infrastructure network, creating an amenity for development and another opportunity for park users to experience a natural environment outside of t41、he roadway network. Wetlands Walk Illustrative Plan (north is shifted to the left) Walking PathsProtected WetlandsVegetated Buffer between Development and Protected Wetlands 039 CHURCHILL PARK MASTER PLAN FEBRUARY 2019 THE PRESERVE 040 041 CHURCHILL PARK MASTER PLAN FEBRUARY 2019 The framework plan 42、is designed to prioritize building frontages and activity along major open spaces and high-priority streets, while leaving flexibility along secondary streets to accommodate less active uses and other building and site requirements. By creating these priorities, Churchill Park can encourage developm43、ent that creates continuous block frontages along important streets and public spaces. The adjacent diagram indicates where the highest priorities for these building frontages are, where they are strongly encouraged, and where there is the lowest priority and most flexibility. In all cases, building44、s should be built to the edge of the sidewalk or with very minimal setbacks. Parking lots should be located behind the building and interior to the block and away from important frontages, with the exception of on street parking which has been indicated throughout the development. Where parking lots45、 abut a street, appropriate landscaping and screening should be provided to create a comfortable and aesthetically pleasing experience for pedestrians. In the areas with the thickest pink lines, development should meet the edge of the sidewalk along the majority of the frontage and have the highest 46、priority for active ground-floor uses. Buildings along these frontages should be a minimum of two stories. In the areas with dashed pink lines, development should front the street to the greatest extent possible, but more accommodation is made for limited setbacks (5-10 maximum suggested), driveways47、, and spaces between buildings. Along the remainder of the street frontages buildings should seek to front the street with limited setbacks (10 maximum suggested), but the most accommodation is made here for location of parking, servicing, driveways, and other building requirements in these portions48、 of the block. With near-term building density, surface parking requirements, and higher-priority building frontages indicated elsewhere, it may not be possible to have building frontages along these lower-priority portions of the block in some areas of the development, particularly in early phases.49、 URBAN DESIGN FRAMEWORK 042 High-Priority Frontage Medium-Priority Frontage Low-Priority Frontage 043 CHURCHILL PARK MASTER PLAN FEBRUARY 2019 ROADWAY HIERARCHY High-Activity Mixed-Use High-Activity Parkway Medium-Activity Main Street Medium-Activity Commercial / Residential Local Access The master plan framework is undergirded by a robust network of str