Nguyen portfolio 032013_web

dzung do nguyen’s portfolio | 2013planning + urban design + hydrology + cartography

Projects

Walking to LRT stations: a GIS exploration

16th Avenue North: The People’s Corridor

Sen Viet Eco Village

Riviere in Saigon South

Phuong Nam University Campus

Viet Thuan Thanh Eco-city

Phuoc Giang Regional Plan

Water as a system: a GIS exploration of Downtown Atlanta’s hydrolic dynamics

Kallang River Site Design Competition

Built to Drive: Can higher density reduce Atlantans’ addiction to drive?

Playground Design Charrette for An My Commune

Making the Sense of San Francisco

Urban Form - Hydrology Interaction in Saigon River Basin

Scale

City-wide

Corridor

District

Site

Site

District

Region

District

Site

Regional

Site

City-wide

Regional

Theme

GIS / Transit-Oriented Development

Urban Design / Transit-Oriented Development / Bus Rapid Transit

Township Development / Urban design

Urban design / High-density Urban Development

Campus planning / Urban design

Comprehensive planning / Waterfront development

Regional planning / Land conservation / Urban Design

GIS / Hydrology

Water-sensitive urban design / High-density Urban Development

Land-use - Travel behaviour interaction / Statistical modeling

Participatory Design

3-Dimension GIS / Visual analysis

GIS / Remote sensing / Hydrology / Urban ecology

Year

2007

2007

2008

2009

2010

2010

2011

2012

2012

2012

2012

2013

2013

My vision of what constitutes good design evolves with people’s changing

needs and their rich living traditions.

Dzung Do Nguyen

[email protected]

Client: N/A (Academic work) | Location: Calgary, Canada | Scale: 56 sqkm | Complete year: 2007 | Theme: TOD, Urban Design | Skill: GIS, Cartography | Role: Principal Investigator

Walking is a complementary mode to rail rapid transit. The city of Calgary de�nes a walkable-to-transit urban area (WUA) as an 800m radius circle center at the LRT stations. Using a GIS network analysis tool, I attempted to measure the size of actual pedestrian sheds (APS) around stations and the number of people livingwithin these areas.

In the Downtown, where the grid network de�nes urban patterns, APS equals to 84% of the WUA. In the suburb, where dendritic network champions the city layout, APS can be as small as 20% of the WUA.

The study also illustrates that as of 2001, approximately 55,000 people living within APSs and 107,000 people within the city-de�ned WUAs, accounting for 6% and 12% of the city's total population respectively.

The study also suggests that Calgary can achieve the goal of having 10% of Calgar-ians living within pedestrian sheds of LRT stations through improving and extending walking pathways instead of increasing residential density, which is politically di�cult to achieve.

Site survey of the actual pedestrian shed around Heritage station con�rms the GIS study.

APS area

WUA area

Actual versus city-de�ned walkable-to-station areas

Population densityin APS areas

10-minute walkable-distance from LRT stations - Calgary South Suburb

10-minute walkable-distance from LRT stations - Downtown Calgary

Client: N/A (Academic work)Location: Calgary, CanadaScale: 56 square kilometersComplete year: 2007Role: Urban Designer/Researcher

City CentreHonorable Mention

Calgary Mayor’s Biannual Urban Design Award 2007

Regional Destinations

This project analyzes the urban design potential for an extensive public transit system for Calgary's 16th Avenue North - one of the city's major through streets.

• The plan explores a land use strategy for a transit-�rst policy and design opportu-nity for the implementation of Transit-Oriented Development along the corridor.

• The Plan aims to provide mobility in a regional and local scale. This is accom-plished through the provision of a frequent and comprehensive cross-town and in-bound bus-rapid transit service.

• A healthy land use and transportation relationship is obtained through supplying bus-rapid transit service to the Corridor and developing diverse activity nodes along the Avenue that provide places for living, working and playing.

Client: Invesco DevelopmentLocation: Ho Chi Minh City South VietnamScale: 6 hectares/ 300,000 GFAComplete year: 2008Role: Lead urban designer & illustrator (hand-sketch)

Shopping Mall O�ce Tower Garden Hill Open Hall Crescent Avenue Plaza Parking Condo Riverside Park Lighthouse

The combination of towers and lower street-front buildings contribute to creating intimate pedestrian-scaled environments as well as dramatic skylines. All these work to take advantage of the river and the city.

While the small site and towers produce signi�cant density of development, the landscaping and careful placement of all structures is orchestrated to provide amenities and beauty to this riverside.

The most signi�cant aspect of this project is the use of a formal diagonal axis to spatially organize all high-rise towers. The axis leads the viewer from an entrance mall past a pond through an undulating series of hills to a major pedestrian plaza and on to the Ong Be riverside marked with a pier and light towers.

The small hills conceal parking areas that help reduce the towers’ parking requirement. The curved boulevard further orders the composition and brings a simple understanding to the order of functional uses.

Section A-A

The Phuong Nam University Campus Master Plan is based on the simple Vietnamese tradition of street and courts. The pattern of broad streets and narrow corridors combined with courtyards of various sizes provide an e�ective means of way - �nding and creating a strong sense of place.

The campus is divided between an urban and a more natural environment that enhances the contrast between the two settings. This contrast creates a dramatic visual setting for the University as well as provides students with a richness o�ered from both experiences.

The central courtyard �anked by the library and admin-istration building creates a heart for The University and provides a focus for campus life. The Central Courtyard supports academic life and complements the dailyrhythm of work and relaxation.

Student and faculty housing occupy the west periphery allowing access and views to the surrounding village and countryside.

Phuong Nam University Campus Master Plan

Student Center

Dormitory

Park & Playing Fields

Rubber Tree Farm

Cooling Pond

Temple of Literature, 11th century | Hanoi, Vietnam

Student Center

Client: Phuong Nam College | Location: Dong Nai Province Scale: 10 hectares | Complete year: 2010 | Theme: Campus Planning, Urban Design | Skill: Development ProgrammingRole: Lead planner | Status: Planning Approved

h Binh Consulting

Main entrance

Central Library & Administration

Lecture Theatres

Classrooms

Labs

Hotel

Central Court

Faculties

Rubber Tree Farm

Much like the heritage building of the Temple of Literature, the Central Library of Phuong Nam University gives meaning to the philosophical

idea of the empty stage - helping to empty the mind in order to receive knowledge and wisdom. Site PlanImage Credit: Thanh Binh Consulting

Adapting to the hot climate of Vietnam via cross ventilation and protecting buildings from the

direct sun not only provides a simple and e�ective means of strengthening the identity of

Phuong Nam University, but it is also based on common sense principles and traditional

traditional wisdom.

MultifunctionalReservoir

Wetland

Tourist port

Tourist port

Villa on piles

Villa on piles

image credit: Thanh Binh Consulting

2 m 1.5 m waterlow land (seasonal �ooding) Urban Hub Green beltPlanning concept Grading strategy

70% land �ll needed is accommodate on site

Client: Viet Thuan Thanh Corp.Location: Dong Nai province South VietnamScale: 500 hectaresComplete year: 2011Role: Lead planner

0 400 800 m

Phuoc Giang Transect Plan

Binh Duong province

Dong Nai province

T1

T2

T3

T4

T5

S

Ecological/Agricultural reserve

Rural settlement

Sub-urban

General urban

Urban center

Special use (ie. industrial)

Civic/Landmark building

A Form-based Code is introduced as acomplement to design to achieve adesirable urban form. Additionally, to provide a good illustration of the future developement as well as to meet the design requirement of the contest, a conceptual physical plan for each growth area is produced.Growth Area 4 is selected to demonstrate in greater detailan urban design plan toachieve a sustainable andcontext-sensitive urbandevelopement.

Client: Dong Nai province / Sonadezi Corp. | Location: Dong Nai Province | Scale: 3,250 hectares | Complete year: 2011 | Theme: Regional Planing, Urban Design, TOD, Conservation Development | Skill: Project coordination, Illustrator | Role: Lead urban planner & urban designer | Status: First runner-up in the international planning competition for Phuoc Giang Region

Taking part in a planning competition for Phuoc Giang are, north of Bien Hoa city, we want to give the local government and communities an alternative solution and a set of planning tools to contiually nurture and sustain the environmental, social and economic well-being of the area.Our key strategies include: Conserve is to develop: fertile cropping land and rural settlements are preserved to maintain environmental sustainability, rural characteristics and also uniquely scenic views for new urban developments;

Connect to be the heart of the region: Phuoc Giang will be connected with the entire region through a new road network, an inter-city BRT service and a waterway transit system; Grow along the edge: urban growht areas are determined to be along the west and south boundary to take advantage of the economic vitality of Binh Duong - Bien Hoa industrial belt and existing regional thoroughfares. This strategy also helps to reserve the most productive agricultural lands as well as to protect the environment and the water quality upstream of the Dong Nai River;

Phuoc Giang

South-East Region Context

Reservoir

Dong Nai river

Vinh Hiep rice �eld

Lighthouse/Observation Tower Green Connector Waterfront Theatre Central Market

Create a desirable micro-climate : the street network is laid out to follow wind patterns, enhancing ventilation and avoid sunlight approaching buildings at right angles.

Provide good mobility & accessibility: the street network is laid out in a grid pattern and a multi-modal transit system is integrated into the urban fabric.

Stormwater management: beside building canals and retention ponds to mitigate �ood risk, on-site in�l--tration is emphasized through design and develop- -ment code to reduce run-o� quantity.

Connect & nurture public spaces: green spaces and public plazas are linked to enhance the walking experience. Buildings are required to integrated with and frame public spaces.

image credit: Thanh Binh ConsultingGrowth Area 4

Dong Nai river

Client: N/A [Academic work] | Location: Atlanta [US] | Scale: one sqm | Complete

year: 2012 | Theme: Municipal Water Management, Hydrology, Urban Design | Skills: GIS [ArcHydro] | Role: Researcher

Site Building footprints + Topography Surface + Flood risk

In nature, every drop of water is part of a hydrolic cycle. In the city, modern engineering manages to drain stormwater as waste then import, treat and deliver tap water from other sources. We have seperated water spatially, organi-zationally and temporally.

Using GIS as a measuring tool, I

estimated water demand in Downtown Atlanta’s one-sqm watershed, mapped the area’s water system dynamics in meta-diagram format, and quanti�ed run-o� �ows in time and volume.

Results: Total daily demand is 3,459,000 gal/day, 85% serving as non-residential use. The area also receives 2,494,000 gal/day of precipitation in average, equaling to 47% of its demand.

Only 35% of this clean resource becomes useful as it fall into greenery. The rest �ows to lower elevations and may cause �ooding along I-85/I-75 Highway as we observed in November in 2010.

Using USGS’ regression models plus ArcHydro and spatial analysis tools in ArcGIS, I calculated and graphed peak-�ow volumes and time lags for di�erent storm

events (2-, 10-, 25-, and 50-year).Design implications: One �ooding alieviation scenario is

developed to reduce run-o� by 36% and turn a 25-year stormevent into a 2-year one. In this scenario:- Every building can catch and store (green roof/cistern)

one-inch rainfall (24 hours) or 517,000 gal/day;- ‘Green street’ design is applied for 25% of total road length

to remove one-inch rainfall from drainage system;- Develope a 16-acre constructed wetland on vacant lots

along I-75/I-85 highway to store and �lter 62,000 gal/day.

Hydrograph

Flood zones500-year100-year

50-year

51

Client: Urban Redevelopment Authority | Location: Singapore | Scale: 23 hectares/468,000 sqm GFA | Complete year: 2012 | Theme: Water-sensitive Urban Design | Skill: Development Programming, Building typology, Illustration | Role: Planner & Urban designer | Status: Contract awarded

In the Kallang River project, context- and water-sensititve urban design and landscape framework were combined to accomplishes high-density urban delope-ment while maintaining Singapore’s last historic coastal park and its storm-water retention capacity.

In this complex design challenge, programming comes �rst. I built a math-ematic model that demon-strate all planning param-eters: small developable land, a maximum overall site coverage of 25%, a provision of 3800 housing units and 3000 hotel rooms plus 1.1 space/unit parking require-ment.

In this ambitious develop-ment assignment, di�erent design disciplines should be interwoven at di�erent scales. The role of a planner like me thus was expended to urban design and build-ing design dimension to test the compatibility, the integration and the func-tionality of each design attribute to the entire site.

MRT Connector Green Spine Promenade Biotope Urban Beach Floating Plaza

Circulation Plan Landscape Plan

Planning Parameters

1. Green Roof2. Garden Terrace

3. Planter Box SystemTreat greywater from sinks

4. Bio-retention Swales5. Bio-retention Basin6. Cleansing Biotope

7. Cistern8. Hybrid Node Discharge

Integrate discharge gate with landscape features

Building StormwaterSystem Prototype

image credit: Atelier Dreiseitl & CPG Consulting

Kallang River Site Design Competition

Coe�cientsa Model Unstandardized Coe�cients Standardized

Coe�cients t Sig.

B Std. Error Beta

1

(Constant) 74.213 2.750 26.987 .000 newden -1.727 .195 -.142 -8.836 .000 easywalk 5.255 1.580 .050 3.327 .001 closejob -20.590 1.566 -.200 -13.145 .000 neartran -9.519 1.753 -.090 -5.429 .000 lowcrime 2.663 1.807 .023 1.474 .141 tra�c -3.140 1.530 -.030 -2.052 .040 HH_income .000 .000 .084 5.617 .000

a. Dependent Variable: SumOfNDISTANCE

Model Summary Model R R Square Adjusted R

Square Std. Error of the

Estimate 1 .315a .099 .098 48.786 a. Predictors: (Constant), HH_income, easywalk, tra�c, newden, closejob, lowcrime, neartran Atlanta is nationally infamous for its low

density and high per capita vehicle miles traveled (VMT). Based on a 2002 travel survey for Metro Atlanta, I conduct a study on the relationship between population density (people/acre - independent variable) and two-day non-transit VMT (dependent variable) using a linear multiple regression model. To control the impact of other built-environment's attributes on travel behavior, I also included following variables: household income, access to vehicle, access to job, access to transit, quality of pedestrian environment.

Results: After aggregating data from SMARTRAQ to get personal daily travel length, I have 14,461 records with a mean VMT of 49.24 miles/two-day period (St.D = 46.87) and an average density of 4.8 people/acre (St.D = 3.75), which is very low.

The regression model has a low predic-tion power with an adjusted R2 = 0.098, which is nearly mirrors a previous study by Chapman et al. (2004). The correlation between VMT and population density is statistically signi�cant at 99% with a coe�cient value of -1.727. The elasticity of density in respect to VMT is -0.34, which is greater than most other �ndings in the country (national average: -0.04). These numbers, the coe�cient and elasticity of density, illustrate that for one more unit increased in density, VMT will be reduced by 1.727 miles, or 3.5%, of total travel length. The regression model also notify us the importance of job-housing balance at a regional level. Providing jobs with close proximity to housing can reduce VMT by 20.59 miles, or by 42%.

This �nding is consistent with the overall literature, which con�rms that an increase in density makes insigni�cant di�erence to travel behavior for regions having below-8-person-per-acre densities.

Client: N/A [Academic work] | Location: Atlanta [US] | Scale: 20,000 km2 | Complete year: 2012 | Theme: Landuse - Transportation Interaction, Urban Design | Skill: Statistics, Research | Role: Researcher

Client: Actions for the City [NGO] | Location: Hoi An [Vietnam]

Scale: 2,000 m2Complete year: 2012

Theme: Community ParticipationSkill: Charrette CoordinationRole: Charrette Team Leader

Status: Completed

Neither graphics nor numbers, but collaboration makes a design great. In summer 2012, I ran a 3-day Charrette to design a playground serving multi-generations for a rural community outside Hoi An, South Central Vietnam. Time was short, budget was limited, but ideas �ourished as the whole community joined the design team.

The Charrette was began with a 30-people focus group brainstorming to identify issues and desires. Next step was to get people involving in the design process and generate design ideas. To create interactive and understandable plans, no pencil was used and no blue print was made. Instead, we cut papers to display di�erent design programs and built 3-D models to exhibit di�erent design concepts so that people can touch, imagine, modify and select the preferred plan.

Brainstorming Day

Let vote for what matters!

Teenagers’ design team A volunteer working on a 3D model

Judgement Day: people voting for the community’s future playground design proposals.

Presentation to the community

The “Master Plan”

Completed An My Commune Playground

Arti�cial Topography

The sensed form of the environment de�nes one place’s legibility and quality. In this study, the sensed form is explored in two formats: vertical map-ping and visibility mapping.

Vertical mapping aims to uncover the interlacement between natural topog-raphy, parks/open spaces, streets, and buildings. This interlacement created a new arti�cial topography of the city that a�ects human and ecological �ows [pedestrian, tra�c, hydrologic, and wind �ows, etc.].

Based on the arti�cial topography, the visibility study maps all locations in San Francisco, at both ground level and top �oors, that o�er at least a glimpse to the city’s most signi�cant landmarks. This study attempts to reveal where in the city the sense of place can be best maintained through visual connection. The study can also be used to test the visual impact of new developments.

Location: San Francisco [US]Scale: 37 sqkm | Complete year: 2012 | Theme: Environment simulation& analysis | Skill: 3-Dimenion GIS | Role: GIS specialist/Cartographer (in collaboration with Susannah Lee)

v e r t i c a l m a p p i n g o f t o p o g r a p h i c l a y e r s

Coit Tower

Twin Peaks

San Francisco Visibility MappingWhere you can and cannot see SF’s landmarks: Golden Gate Bridge, Twin Peaks, Paci�c Ocean, Downtown Skyline, Coit Tower & Ferry Building

Invisible[See none]Less visible[See 1 or 2]More visible[See 3 or 4]Most visible[See 5 or 6]

“Hot spots”

Ferry Bldg

Twin Peaks

Golden Gate Promenade

Russian Hill

Downtown Skyline Visibility

v e r t i c a l m a p p i n g o f t o p o g r a p h i c l a y e r s

v i s i b l e [ & i n v i s i b l e ]S A N F R A N C I S C O

Saigon River Basin is the land of a sophisticated interlacement between human settlements, interconnected watercourses, wetlands and crop lands. From 1990 to 2010, while urban devel-opment aggresively expanded into low and wetlands, one can also observe a rapid increase of peak water level of the River in downtown Ho Chi Minh City [formerly Saigon] at average annual rate of 1.6 cm, causing inundation to 35 sqkm of urban area and a�ecting over 2 million people.

This research is the �rst attempt to measure the change of urban form at basin level throughout 1990-2010 period and their relationship with hydrologic conditions. Nine variables are used to meausre the change of urban form in term of size, shape and connectivity of developed patches [impervious surface]. Due to the lack of run-o� volume, hydrologic perfomance is measured by the ratio between rainfall depth and the water elevation di�erence between the Phu An hydro-station near the outlet of Saigon River Basin and Nha Be hydro-station down-stream.

Within the 20-year period, in Ho Chi Minh City only, the settlement area below 1.3-meter �ooding alarm rate III (equivalent to 9-year �oodplain) had increased by an additional 40 sqkm or almost 400%. At the basin scale, 246 sqkm of agricultural and wet land were converted into impervious surface within that period, and increased the percentage of impervious surface from 3% in 1990 to 12% in 2010.

Concurrently, the compactness of urban areas had been reduced from the score of 0.043 in 1990 to 0.026 in 2010 due to, perhaps, both in the fringe areas of existing urban centers and along major roads and arterials. On the other hand, urban areas were transformed from a more clustered to more dispersed distribution in the basin. In contrast, the connectivity of these urban areas increased overtime, but less explicitly, compared to the trend in compactness and distribution.

The results inform that total urban patch area, number of patches, change rate of the number of patches, landscape percentage of urban patches, and their cohesion has converse relationship water level on Saigon River. In contrast, compactness, fractal, and contag scores of urban patches have inverse with the water level.

Client: N/A | Location: Saigon River Basin | Scale: 2505 sqkm | Complete year: 2012 | Theme: Urban Form Meas-urement, Hydrology, Landscape Ecology | Skill: Remote sensing, GIS, Statistics | Role: Principal Investigator

Saigon River Basin Land cover in 1990 Land cover in 2000 Land cover in 2010 Image classi�cation testing Planned landuses in �ood-prone areas

0.00%

2.00%

4.00%

6.00%

8.00%

10.00%

12.00%

14.00%

0

50

100

150

200

250

1990 1995 2000 2005 2010Year

Hours >1.3m level Percent impervious surface

Phu An Hydro-station

Nha Be Hydro-station

Changes of impervious surface percentage and hydrologic performance in Saigon River Basin during 1990 - 2010 period.

Saigon River Basin boundary

This research is the �rst attempt to measure the change of urban form at basin level throughout 1990-2010 period and their relationship with hydrologic conditions. Nine variables are used to meausre the change of urban form in term of size, shape and connectivity of developed patches [impervious surface]. Due to the lack of run-o� volume, hydrologic perfomance is measured by the ratio between rainfall depth and the water elevation di�erence between the Phu An hydro-

station near the outlet of Saigon River Basin and Nha Be hydro-station down-stream.




Saigon River Basin Land cover in 1990 Land cover in 2000 Land cover in 2010 Image classi�cation testing Planned landuses in �ood-prone areas

This research is the �rst attempt to measure the change of urban form at basin level throughout 1990-2010 period and their relationship with hydrologic conditions. Nine variables are used to meausre the change of urban form in term of size, shape and connectivity of developed patches [impervious surface]. Due to the lack of run-o� volume, hydrologic perfomance is measured by the ratio between rainfall depth and the water elevation di�erence between the Phu An hydro-

station near the outlet of Saigon River Basin and Nha Be hydro-station down-stream.




-station near the outlet of Saigon River Basin and Nha Be hydro-station down-stream.

Within the 20-year period, in Ho Chi Minh City only, the settlement area below 1.3-meter �ooding alarm rate III (equivalent to 9-year �oodplain) had increased by an additional 40 sqkm or almost 400%. At the basin scale, 246 sqkm of agricultural and wet land were converted into impervious surface within that period, and increased the

percentage of impervious surface from 3% in 1990 to 12% in 2010.



percentage of impervious surface from 3% in 1990 to 12% in 2010.

Concurrently, the compactness of urban areas had been reduced from the score of 0.043 in 1990 to 0.026 in 2010 due to, perhaps, both in the fringe areas of existing urban centers and along major roads and arterials. On the other hand, urban areas were transformed from a more clustered to more dispersed distribution in the basin. In contrast, the connectivity of these urban areas

increased overtime, but less explicitly, compared to the trend in compactness and distribution.


increased overtime, but less explicitly, compared to the trend in compactness and distribution.

The results inform that total urban patch area, number of patches, change rate of the number of patches, landscape percentage of urban patches, and their cohesion has converse relationship with the hydrologic ratio. In contrast, com-pactness, fractal, and contag scores of urban patches have inverse with the hydrologic ratio.

A rendering of Growth Area 4, Phuoc Giang Region, Dong Nai, South Vietnam

Tan Trieu River

Waterfront Theatre

Central Market

Landmark Tower

Binh Luc Village

A rendering of Growth Area 4, Phuoc Giang Region, Dong Nai, South Vietnam

Dong Nai River

Vinh Hiep Field

Dzung Do NguyenSenior planner/urban designer, Fulbright Fellow

Motivated professional planner and urban designer with solid background in township development, and strongly committed to stakeholders engagement and eco-sensitive planning to achieve high-performed integrated communities. Interested in comprehensive township planning, Transit-Oriented Development and water-sensitive urban design.

E : [email protected] | W : dothivietnam.org

C : +84 943 647 000 (Vietnam) / +65 8350 4404 (Singapore)

Conceptual sketch of Ngoc Thao Island Redevelopment Plan, Nha Trang, South Central Vietnam Detailed Sketch of Vinh Thanh Community Master Plan, Nhon Trach, Dong Nai, South Vietnam

Cai River

Fisherman’s Pier

Church

Market

Central Park

dzung do nguyen’s portfolioplanning + urban design + hydrology + cartography

Nguyen portfolio 032013_web

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