Zhenzhenzhang Urban design-Star autowash

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STAR AUTO WASH DESIGN ZHENZHEN ZHANG


BACKGROUND Star Auto Wash locates in Warrendale, is close to the East entrance of Warren Ave, and adjacent to Southfield Fwy. Bussiness started at 1977, mainly focusing on auto cleaning and detailing services.


CURRENT CONDITION Function is the pritority for car wash business, which results large impervious area and almost no green space. Because Star Auto car wash also provides used car business, which is located in the east side parcel, this car wash has a lot of parking lots assisting its used car wash needs.


~ $9200 Draiange Charge Per year

2%

Green Space

1.02 98%

Acre Total

Impervious Area


BUSINESS ANALYSIS Parking Area Business signage No competition within one mile distance No left term available, but most car right turn, traffic signal increase business Business is visible at 300 feet away

STORM WATER ACCUMULATION TWI 21.1 0

Topographic Wetness Index (TWI) calculated based on 2 feet digital elevation model, consider flower direction and flow accumulation. Darker blue indicates the area with high possibility of accumulating storm water when raining.

CIRCULATION ANALYSIS

Drive way is essential for car wash business. Drive way maintain the function. Therefore, all drive way should be the priority part for consideration before design. Ideally, do not move existing drive way and gate way to enter buildings.

Drive way under roof Outdoor drive way

EXPERIENCE ANALYSIS

Based on sun shade analysis, we found the most sunshine area and for four season, the yellow zone; the dark gray is the shade area. We recommend for car parking locating in shade area, and for pick spot locating in most sunshine area, which shows in pink.

Most sunshine area Shade area Pick-up recommendation


SITE ANALYSIS Based on previous analysis, the result indicates design potential and restriction. To keep car wash and detailing business function well, all entrance and exit to building need stay, necessary space and car drive also kept, shown in blue zone. Parking lot could be re-arranged or reduced depends on clients' needs, shown in orange. Green zone indicates the area which could be used for storm water treatment location.

Parking lot re-arrange

Maintain function

Potential water infiltration area

Maintain circulation


GOAL & STRATEGE

Reduce drainage charge

Short Term 1. Depaving 2. Rain garden 3. Small infiltration basin Long Term 1. Large impervious area transferred to infiltration basin

Safety & Convenience

Short Term 1. Re-arrange parking space 2. Street parking for safety and legibility 3. Add sub-entrance and exit Long Term 1. Decrease parking space 2. Outdoor seats

Multifunction

Short Term 1. Rain garden and basin for infiltration 2. Trees for reducing carbon dioxide 3. Water tank for storage and reuse water Long Term 1. More trees as buffer, and provide shade for outdoor seats area. 2. Water re-use system


GI SELECT & VALUE Infiltration basin

Rain garden

Planting tree

Rain barrel/ water reuse sys.

Depavind

Local climate and air quality

Carbon storage

Moderate of extreme events

Waste-water treatment

Aesthetic

Reduce drainage charge


PROPOSAL ONE Suitable for short-mid term Rain garden Depaving with grass

Rain garden

Street parking

Water tank Bio-swale

Advantage 1. Keep more parking lot 2. Parking lot with legibility and safty--street parking and inside parking which is easy to be viewed from street. 3. Rain garden and infiltration basin reduce on-site storm water. 4. Water tank for water reuse. 5. Relative low cost.

Planting basin Depaved parking with grass Infiltration basin Customer parking

Infiltration basin

One way parking

0

20'

40'

Shortage 1. Stormwater drainage charge fee reduce with limitation. 2. Fewer trees, no tree as buffer to block residential and commertial area. 3. No outdoor space for customer to rest


DESIGNED CIRCULATION

Enter & Exit Exit only

Enter & Exit

Parking lot

This design re-arrange the parking lot, modifying the main parking space to angle parking, which use this space more efficiently. Street parking is provided for convenience. Wall near the parking lot is removed, which make parking lot visible from street, which is safer for people who park inside. More entrance and exit are added making customer driving more flexible.

Drive way

DESIGNED FLOW & INFILTRATION Rainwater from roof will be carried to the nearby rain garden or rain barrels. Rain gardens are connected, when one over flow, the storm water will go to the next rain garden. Near the main parking lot are two infiltration basins, which can treat storm water from drive way and parking lot. Near the building water storage tank with 3000 gallon capacity in total. Retained or detained area Stormwater flow direction


Perspective-1

Rain Water Barrel

This perspective shows the east side of car wash. We design a bio-swale to block pedestrain and car wash site, connecting to a infiltration basin.

Bio-swale

Rain Garden

Perspective-2 This perspective shows the front side of the carwash. Pedestrain pathway through rain garden provides an opportunity for people to enjoy the street landscape. Rain garden can deal the stormwater from the roof, and Warren Ave. Plants selected with suitable hight, attract view, and do not block the building advertisement.


Perspective-3 Street parking lot also provided, for legibility and convenience. Rain garden in front of building can deal the roof run-off. Depaved area planted with trees can increase the canopy cover for the whole site.

Rain Garden Tree Planter

Depaving replaced with lawn Infiltration Basin

Perspective-4 Existing parking lot is re-arranged to one way angle park. Depaveparking spot with mown lawn, which allow storm water to infiltrate. Parking lot connect with bio-swale, which deliver storm water to infiltration basin.


~7086 cf Retained volume

81.3% Volume flow credits

30%

$4392

41%

Peak flow credits

Pervious surface

Storm water charge reduction


PROPOSAL TWO Suitable for mid-long term Tree planting bed

Advantage 1. Fewer impervious area 2. Enough parking lot for car wash business 3. Higher capacity to treat storm water 4. Water re-use with efficiency 5. Customer friendly rest area 6. Largely reduce drainage charge

Shortage 1. Higher cost 2. Fewer parking lots

Rain garden

Rain garden

Business Signage

Pedestrain seats Depaving with grass

Bio-swale

Waste water reuse system

Outdoor rest area

Planting basin Parking

Depaved parking with grass

0

20'

40'


DESIGNED CIRCULATION Enter & Exit Exit only

Enter & Exit Parking lot Drive way

This design largely reduce the number of parking lot, just maintain the parking spot enough specific for car wash and detailing business. Parking lot is close to the customer main entrance. Wall near the parking lot is removed to provide legibility for people. We add one more two way entrance/exit close to the customer entrance at south west corner, and one more one way exit on the east side of car wash area. Working space and drive way are maintained.

DESIGNED FLOW & INFILTRATION

Retained or detained area Stormwater flow direction

Rainwater from roof will be carried to the nearby rain garden; near street planting infiltration area can retain storm water from street. Because we remove a large portion of parking lot, we change it to large infiltration basin, which can treat storm water from drive way and rain garden when over flow. orage tank with 3000 gallon capacity in total.


Perspective-1 Depaving replaced with lawn

Outdoor seats

This design provides more people friendly function, for example, outdoor seats on the pedestrain path way.

Rain Garden

Planting Bed

Perspective-2 Infiltration planting area with dry/wet tolerant plants, has the function to reduce storm water, block the noise from street, and store carbon dioxide.

Rain Garden


Perspective-3

Side Walk Tree Area

Infiltration Basin

This image shows the north east coner of the site. There is a relatively large planted infiltration area connecting with rain garden, which can deal stormwater when rain garden over flow. Pedestrain path way is separated from driveway exit with a linear green space, which is safer for people to walk.

Tree Planter

Outdoor Seats Rain Garden

Perspective-4 At the main entrance of customer service, there is a outdoor seating area located in most sunshine area. With rain garden and tree surrounding, it is a nice place for customer waiting.


Perspective-5 Infiltration Basin

This perspective shows the largest plant basin in this site, strom water from nearby parking lot and drive way will flow into this basin and infiltrated. Wet tolerant tree also planted near the wall can soft the fense barrier look. A

A'

Section A-A'-water reuse system Warren Ave.

Pedestrain Planting tree

Car wash building

Rain garden Cleaned water for irragation Rain garden over flow connects with system

Cleaned water for car-wash

Drive way Waste water reuse system Waste water from car wash will be purified in system

Planting basin


33%

$6732

Pervious surface

Storm water charge reduction

87.7%

Volume flow credits

~27000cf 100%

Retained vol.

Peak flow credits


CURRENT & DESIGN COMPARISON


COST ESTIMATE


Future Perspective Joy Road Future 1. Density of downtown business 2. Enough on-street parking space

Both Future 1. Reduce drive way from 5 lane to 3 lane 2. Bicycle lane 3. Increase street green infrastructure

Warren Ave. Future 1. Services business (eg. health care) 2. Restaurant and outdoor cafe 3. Small shopping stores 4. Grocery and farmer market


Street storm water garden Street parking

Pedestrain

Bike lane

Street parking

Proposal One Future Cooperation This image shows a scenario for street future, proposal one is well merged into the street landscape.

3-way drive

Street tree buffer


Street tree buffer Pedestrain

Outdoor seats Bike lane

Proposal Two Future Cooperation This image shows the future scen of Warren Ave, proposal two is well merged into the street landscape.

3-way drive

Street tree buffer


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