Maintaining A Safe Parking Lot
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Maintaining A Safe Parking Lot: small costs, BIG SAVINGS
Maintaining A Safe Parking Lot: small costs, Big Savings
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Your parking lot is often the first thing people notice when approaching your property.
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Not only do you want to maintain your parking lot,
but you also want it to be SAFE.
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It’s important to understand how your parking lot can go from this…
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…to this.
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The first step is to understand what happens to your parking lot’s asphalt pavement. But first…
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What Is Asphalt Pavement?
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Asphalt Pavement is also known as asphalt concrete, AC, hot mix asphalt, or black top.
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Asphalt is made up of a combination of crushed rock (aggregate) and asphalt binder.
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Asphalt provides a smooth surface, reduces sound, and should have proper drainage.
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Asphalt should be flexible. Flexibility is extremely important so that asphalt can take great loads and bounce back to its original condition.
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What happens to pavement if it’s not
maintained?
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UV radiation will break down the asphalt binder and weaken it so that the binder can no longer hold the rocks and sand, thus gradually loosening the top surface.
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The first and most obvious sign of oxidation is the gradual change in color of the asphalt from black, to brown, and finally to gray.
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Next, your parking lot begins to look rough and piles of sand and seem to appear in the low areas of the parking lot.
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In the later stages of degradation raveling takes place and the parking lot is rough and extremely dirty because dirt and grass fill the spaces where rocks were.
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Due to oxidation, your pavement loses its flexibility. As asphalt loses its flexibility, it becomes brittle and begins to crack and break.
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When it rains, water seeps into the cracks, creating larger cracks in your pavement.
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If left unprotected, your pavement will eventually need to be repaved.
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Review: Asphalt Pavement Breakdown
First, the top layer breaks down (due to exposure to the elements and UV)
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Review: Asphalt Pavement Breakdown
First, the top layer breaks down (due to exposure to the elements and UV)
Next, the asphalt binder breaks down
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Review: Asphalt Pavement Breakdown
First, the top layer breaks down (due to exposure to the elements and UV)
Next, the asphalt binder breaks down
Without the binder, aggregates come unglued & start raveling
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Review: Asphalt Pavement Breakdown
First, the top layer breaks down (due to exposure to the elements and UV)
Next, the asphalt binder breaks down
Without the binder, aggregates come unglued & start raveling
Surface cracks develop (water seeps in & starts to damage base)
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Review: Asphalt Pavement Breakdown
First, the top layer breaks down (due to exposure to the elements and UV)
Next, the asphalt binder breaks down
Without the binder, aggregates come unglued & start raveling
Surface cracks develop (water seeps in & starts to damage base)
Cracks widen (further damaged by water)
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Review: Asphalt Pavement Breakdown
First, the top layer breaks down (due to exposure to the elements and UV)
Next, the asphalt binder breaks down
Without the binder, aggregates come unglued & start raveling
Surface cracks develop (water seeps in & starts to damage base)
Cracks widen (further damaged by water)
Base and Sub-base courses are damaged (load carrying capacity is lost)
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Review: Asphalt Pavement Breakdown
First, the top layer breaks down (due to exposure to the elements and UV)
Next, the asphalt binder breaks down
Without the binder, aggregates come unglued & start raveling
Surface cracks develop (water seeps in & starts to damage base)
Cracks widen (further damaged by water)
Base and Sub-base courses are damaged (load carrying capacity is lost)
End of Pavement Life
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So what can you do to maintain your
pavement?
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Here’s 6 tips to maintain (&protect) your
pavement
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#1: Control load on pavement
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Have large vehicles access your property only if it is necessary. For example, move garbage cans near an entrance so garbage trucks don’t drive on your pavement.
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#2: Proper drainage
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Proper drainage is the key to prevent water from penetrating your “roof” and destroying your base.
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#3: Treating oil spots
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Gasoline and oil break down asphalt because they are petroleum-based.
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If left untreated, your asphalt will soften and the surface will eventually corrode.
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#4: Sweeping & blowing
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Sweeping your parking lot on a regular basis keeps it free from hazards like loose aggregate and glass.
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If your parking lot is not cleaned regularly, debris may hide cracks and damaged asphalt leading to failures that seem to appear suddenly.
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#5: Crack Filling
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Fill existing cracks to stop water penetration into the base. Water can enter cracks at gallons per minute.
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#6: Sealcoating
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#6: Sealcoating (the preferred method to maintaining &
protecting pavement)
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Sealcoating seals the surface of your asphalt, protecting it from the elements and preventing water seepage.
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Sealcoating also fills surface voids, reducing exposure to oxygen, moisture and UV rays.
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Lastly, sealcoating provides a smooth, even surface, making it easy to maintain.
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Cost Comparison: Sealcoating is about 10x less expensive than paving.
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Cost Comparison: Sealcoating is about
Keep your good pavement good! 10x less expensive than paving.
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Cost Comparison: Sealcoating is about
Keep your good pavement good! 10x less expensive than paving.
And remember…
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“The number one fault of agencies is that they wait until a problem develops before
Larry Galehouse, P.E., executive director of National Center for PP (NCPP) at Michigan State University
they address it.”
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Now let’s talk about how to keep your parking lot safe.
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Pavement Marking & Striping
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Proper pavement markings and striping direct motorists safely through your parking lot and helps pedestrians to the nearest walkway.
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Accessible Parking Spaces
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You need to have the minimum number of accessible parking spaces.
A full copy of the parking rules is on the DCAB web site at: www.hawaii.gov/health/dcab/.
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You also need to make sure those accessible parking spaces are the correct size. A full copy of the parking rules is on the DCAB web site at: www.hawaii.gov/health/dcab/.
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Finally, you need to have the correct signs.
A full copy of the parking rules is on the DCAB web site at: www.hawaii.gov/health/dcab/.
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Parking Lot Signs
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Don’t forget that parking lot signs are important to help guide visitors safety to their destination.
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Regulations
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Regulations What are they and where do we find them?
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MUTCD (Manual on Uniform Traffic Control Devices) general principles and standard traffic control device designs should be used in parking facilities.
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Sign Lettering and Legibility- 30 feet of legibility for each 1 inch of letter height.
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Standard Regulatory and Warning Signs must meet a minimum reflectivity.
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Let’s review.
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Parking Lot Maintenance
• Control Load • Proper Drainage • Treat Oil Spots • Sweep/Blow • Crack Fill • Sealcoat
Parking Lot Safety
• Striping & Marking • Accessible Parking
Spaces • Parking Lot Signs
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If you have any questions, or would like us to give you a free consultation, feel free to contact us.
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If you have any questions, or would like us to give you a free consultation, feel free to contact us.
www.GPMaintenanceSolutions.com/content/contact-us
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