Parking Lot - Wikipedia, The Free Encyclopedia

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A California parking lot in March

2006, with landscaping and a diagonal

parking pattern designed for one-way

traffic.

A row of parked cars in a British

parking lot in April 2012.A bicycle parking lot in Niigata, Japan,

in January 2000.

Parking lotFrom Wikipedia, the free encyclopedia

A parking lot (Commonwealth English: car park), also known as car lot, is a

cleared area that is intended for parking vehicles. Usually, the term refers to a

dedicated area that has been provided with a durable or semi-durable surface.

In most countries where cars are the dominant mode of transportation, parking lots

are a feature of every city and suburban area. Shopping malls, sports stadiums,megachurches and similar venues often feature parking lots of immense area.

The term parking lot is short for "parking lottery", due to the difficulty in finding

parking spaces.

Contents

1 Design and locational considerations

2 Environmental considerations

2.1 Water pollution2.2 Landscaping

2.3 Land usage

2.4 Services

3 Parking minimums

4 Legal issues

4.1 Sweden and Denmark

4.2 United Kingdom

4.3 United States

5 Payment

6 Technology

7 See also

8 References

Design and locational considerations

The usual parking lot is paved with asphalt.

Some are paved with concrete. Many are

gravel lots. A few of the newer lots are

surfaced with permeable paving materials.

Parking lots have their own special type of

engineering. While parking lots havetraditionally been an overlooked element of

development projects by governmental

oversight, the recent trend has been to

provide regulations for the configuration and

spacing of parking lots, their landscaping, and drainage and pollution abatement

issues.

Parking lots can be small, with just parking spaces for a few vehicles, very large with spaces for thousands of vehicles, or

any size in between. Small parking lots are usually near buildings for small businesses or a few apartments, although many

other locations are possible. Larger parking lots can be for larger businesses or those with many customers, institutions such

as schools, churches, offices, or hospitals, museums or other tourist attractions, rest areas, strip malls, or larger apartment

ng lot - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Pa

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A multi-story parking garage in

Kingston, Canada in October 2005.

A parking lot at Mount Baker,

Washington in July 2009.

A parking lot in residential Bukit

Batok, Singapore in January 2011.

A parking lot in July 2008, as viewed

from above.

buildings.

Some such businesses, institutions, or other building may have several parking lots if

a single large lot cannot accommodate their parking needs. Large and very large

parking fields can be for stadiums, airports, malls or shopping centers with multiple

businesses, large schools or universities, convention centers or fair grounds, theaters,

workplaces with many employees such as factories, plants, etc., or other large

institutions. Often several businesses, offices, apartment buildings, or other

institutions may use one or more parking lots in common for their convenience.

Parking lots near businesses, buildings, or institutions are often implicitly understood

or explicitly labelled to be for the use of their respective customers or visitors, often

with special vehicle spaces for the owners and

employees. Parking lots around apartment

buildings are often exclusively intended for

parking use of their residents, although

sometimes separate spaces may be provided

for visitors. Such parking for businesses,

offices, and residences is often free to the

customers, patrons, or residents.

In most cases, especially in areas whereparking is scarce, one must pay to park in a

parking lot. Entry and exit access is often

controlled at these type of lots to ensure those

parking pay the required fee. The types of

products used to enforce payment are called access controls. Automated payment, entry and exit systems can reduce the

need for employees and can reduce payment losses. One way traffic spikes, automated gates and tire spikes, and signage

contribute to control of a fee-based parking lot.

In many congested areas where some businesses lack their own parking areas, there are parking lots where practically any

driver can pay a fee to park. These types of parking lots are often effectively businesses in themselves. Some parking lots

have parking meters into which coins must be paid to park in the adjacent space.

Some spaces in a parking lot may be marked as "reserved" for certain people, including those who are handicapped. There

are often one or more parking spaces for handicapped people, which may be slightly wider, close to the point of entry for the

corresponding store or building. Vehicles with handicapped tags may park there, but the non-handicapped are not allowed to.

Although many parking lots are rectangularly-shaped, there are parking lots of all

sorts of shapes. A parking lot can be in front or back, on the side of the building it

services, or any combination of these, including all around the building, often

depending on local building codes. In a very large parking field, it is easy to get lost

or have trouble finding one's vehicle. Such large parking lots often have various

sections marked, for example by numbers or letters, to help identify the location.

The area in parking lots is organized into parking spaces, which are generally markedwith paint lines for each vehicle and driving lanes in between so that vehicles can

drive into and out of the spaces. The arrangement of the parking spaces relative to

the driving lanes can feature perpendicular parking spaces, angle parking (most

common in North America, especially in large lots), or parallel parking (least

common in parking lots, and usually only for a few spaces), or possibly some

combination of these.

Large parking lots have multiple lanes with rows of parking spaces between each one. Except for rather small lots, the

location of the parking spaces for each vehicle are usually indicated with pavement markings or lines, similar to center lines

on streets. A very common arrangement in large parking lots is angle parking for two rows of vehicles between driving lanes,


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Diagram of example parking lot

layout with angle parking as seen

from above. White arrows show

direction of allowed travel in each lane

(for right-hand-drive countries).

Several parking spaces closest to the

building entrance are reserved for the

handicapped. Cars of various colors

are shown parked in some of the

spaces. The obtusely pointed end

indicates the front end of each car.

A sign at the entrance to an

underground parking garage in March

2007, warning drivers of the

maximum height clearance, in this

case, roughly 6.5 feet (2 meters).

A parking lot in Manhattan, New York,

in July 2010, with its capacity

increased through multiple level

stacked parking using mechanical lifts.

with the parked vehicles facing front to front between the two rows. At the sides of

the parking lot, other driving lanes connect these lanes perpendicularly so that a

vehicle can drive into and out of the parking lot at designated locations.

There may be speed limits, stop signs and crosswalks for pedestrians in larger parking

lots. Tall overhead lights may illuminate some parking lots at night.

Most spaces in normal parking lots available

to the public are sized for vehicles about the

size of a car. The spaces are usually arrangedassuming the vehicle can back out of the

parking space. In many rest areas on

highways, long parking spaces are also

available for trucks or other vehicles with

trailers, into which they can enter at one end

and leave at the opposite end to avoid

potentially cumbersome reverse driving.

A common arrangement in paid parking lots is

to have a vehicle entry point with a cross gate

where an entering driver presses a button to

take a stub with the entry time and to openthe cross gate for access to the lot. When

leaving, the driver would pay at an exit point according to how much time was spent

in the lot as determined from the stub.

In order to keep unauthorized people from parking in lots, towing crews sometimes

patrol parking lots after business closing hours, especially at night, to tow away

vehicles which should not be parked there. After snowfalls in winter, vehicles with

snow plows often clear snow from parking lots, usually after business closing hours

and often during the night.

In response the worldwide intelligent transport system initiative, Parking Guidance

and Information systems have been developed for use in urban areas. These systemsuse variable-message signs to direct drivers to car parks with available spaces.

Many drivers prefer underground car parking over outdoor parking because it

prevents the inside of the car from heating up on hot or sunny days and it also prevents the car from being wet on rainy days

Much of the above discussion also applies to large parking garages and multi-level parking areas.

Many businesses hire parking lot striping companies to stripe their lot. There are a wide variety of striping businesses. There

are imprinting companies, striping companies, paving companies and other. They are most commonly hired for maintenance

and rehabilitation of older lots. If the space is parallel to the road, it should be 6m x 2m If the space is perpendicular to the

road it should be 5m x 2.5m

One alternative to parking garages is rooftop parking, a rare practice that was used at Algo Centre Mall in Canada, a

resulting roof collapse occurred in 2012, killing two people.

Environmental considerations

Water pollution

Parking lots tend to be sources of water pollution because of their extensive impervious surfaces. Virtually all of the rain

(minus evaporation) that falls becomes urban runoff. To avoid flooding and unsafe driving conditions, the lots are built to

effectively channel and collect runoff.[1]

Parking lots, along with roads, are often the principal source of water pollution in


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A parking lot in Manhattan, New York

in February 2005, with its capacity

increased through mechanical lifts.

A parking lot in July 2009, landscaped

with trees.

urban areas.[2]

Motor vehicles are a constant source of

pollutants, the most significant being gasoline,

motor oil, polycyclic aromatic hydrocarbons

(PAHs), and heavy metals. (PAHs are found

in combustion byproducts of gasoline, as well

as in asphalt and coal tar-based sealants used

to maintain parking lots.) Many parking lots

are also significant sources of trash which

ends up in waterways.[3]

Treatment of parking lot pollution :

Traditionally, the runoff has been shunted

directly into storm sewers, streams, dry wells or even sanitary sewers. However, most

larger municipalities now require construction of stormwater management facilities

for new lots. Typical facilities include retention basins, infiltration basins and

percolation trenches.[4]

Some newer designs include bioretention systems, which use

plants more extensively to absorb and filter pollutants. However, most existing lots

have limited or no facilities to control runoff.

Alternative paving materials : An alternative solution today is to use permeable paving surfaces, such as brick, pervious

concrete, stone, special paving blocks, or tire-tread woven mats. These materials allow rain to soak into the ground through

the spaces inherent in the parking lot surface. The ground then may become contaminated in the surface of the parking lot,

but this tends to stay in a small area of ground, which effectively filters water before it seeps away. This can however create

problems if contaminants seep into groundwater, especially where there is groundwater abstraction 'downstream' for potable

water supply.

Landscaping

Many areas today also require minimum landscaping in parking lots. This usually principally means the planting of trees to

provide shade. Customers have long preferred shaded parking spaces in the summer, but parking lot providers have long

been antagonistic to planting trees because of the extra cost of cleaning the parking lot.

However, parking lots represent significant heat islands and, indeed, heat sinks in urban areas. The heat from paved areas in

urban zones has been shown to even have the power to change the weather locally. By providing trees or other means of

shading parking lots, the heat and glare resulting from them can be significantly reduced. [citation needed]

Paved surfaces contribute to heat islands in two ways. The first is through excessive accumulation of heat. Dark materials

and the enclosed canyons created by city buildings trap more of the suns energy. The reflection rate of paving compared to

natural surfaces is important as higher reflectance means cooler temperatures. Black pavements, the hottest, have solar

reflectances of 5 to 10 percent. Lighter pavements have solar reflectance rates of 25 percent or higher. Reflectance values

for soils and various types of vegetation range from 5 to 45 percent. The second cause of heat islands is the low moisture

content of paving and building materials. Such materials are watertight, so no moisture is available to dissipate the suns heat

through evaporation.[5]

Land usage

A parking lot needs fairly large space, around 25 square metres (270 sq ft) times the number of places. This means that

parking lots usually need more land area than for corresponding buildings for offices or shops if most employees and visitors

arrive by car. This means covering large areas with asphalt.

Services

Some parking lots have charging stations for battery vehicles. Some regions with especially cold winters provide electricity at


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Universal sign for

disabled parking.

most parking spots for engine block heaters, as antifreeze may be inadequate to prevent freezing.

Parking minimums

Many municipalities require a minimum number of parking spaces, depending on the floor area in a store or the number of

bedrooms in an apartment complex. Parking minimums are also set for parallel, pull-in, or diagonal parking, depending on

what types of vehicles are allowed to park in the lot or a particular section of it. Parking minimums initially took hold in the

middle of the last century, as a way to ensure that traffic to new developments wouldn't use up existing spaces.[6]

Due to a recent trend towards more livable and walkable communities, parking minimums have been criticized by both

livable streets advocates[7] and developers alike. For a time, the British government recommended that local councils should

establish maximum parking standards[8] to discourage car use. At least one entity prohibits backing in to certain spaces.[9]

Legal issues

Sweden and Denmark

In Sweden and Denmark, there are legally two types of car parking, either on streets and roads, or

on private land. A parking violation on streets is a traffic crime, giving fines. A parking violation on

private land (also if owned by the city) is a contract violation and gives additional parking fee

(Swedish: kontrollavgift= check fee). The difference is small for the car owner and the owner is

always responsible.

United Kingdom

The United Kingdom has two types of car parking: either on public or on private land. The

difference is that the police will investigate any reported accident on public land but have no legal obligation and will not do

it on private land. Public road is defined by the Road Traffic Act 1972 and (Amendment) Regulations 1988 S.I.

1988/1036[10] as: "Road", in relation to England and Wales, means any highway and any other road to which the public has

access, and includes bridges over which a road passes.

There is also a House of Lords judgment to this matter.[11]

One method of identifying the registered owner of a motor vehicle and charging the same for wrongful parking is to consult

the DVLA register and charge. The Flashpark company initiated this method and it is likely to be taken up by others.

An accident on private land is entirely a private matter and needs to be investigated privately. However, CCTV-footage and

possible access barrier recording does not need to be handed to a private victim of an accident.

Civil Enforcement Officers enforce parking restrictions on Public (Council Owned) Car Parks. These include failure to

purchase a ticket as payment (if available)/not parking in a marked bay/other offences.

United States

In the United States, each state's Department of Transportation sets the proper ratio for disabled spaces for private business

and public parking lots. Certain circumstances may demand more designated spaces. These reserved spaces are mandated by

the Americans with Disabilities Act Accessibility Guidelines.[12]

Those in possession of the proper ID tags or license plates are also free from parking violation tickets for running over their

metered time or parking in an inappropriate place, as some disabilities may prohibit the use of regular spaces. Illegally

parking in a disabled parking space or fraudulent use of another person's permit is heavily fined.

Payment


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Parking, 5 cents a day,

Hollywood, United States,

1949.

Various forms of technology are used to charge motorists for the use of a parking lot.

Boom gates are used in many parking lots. A customer arrives to the entry ticket machine by

vehicle, presses the ticket request push button, takes a ticket and enters the car park via the

now raised barrier. To exit the parking lot, the customer presents the ticket to a cashier in a

booth at the exit and tenders payment, after which the cashier opens the boom gate.

In 1954, the first automated unmanned parking lots were built where for a monthly fee a

driver with a magnetic key card could enter and exit the parking lot by raising and lowering

the boom.[13]

A more modern system uses automatic pay stations, where the driver presents the ticket and

pays the fee required before returning to their car, then drives to the exit terminal and

presents the ticket. If the ticket has not been paid for, the boom barrier will not raise and will

force the customer to either press the intercom and speak to a staff member, or reverse out to

pay at the pay station or cashier booth.

At the parking lots of some major airports in the United States, a driver can choose to swipe a credit card at the entry ticket

dispenser instead of taking a ticket. When the driver swipes the same credit card at the exit terminal upon leaving the lot, the

applicable parking fee is automatically calculated and charged to the credit card used.

In older systems in Hong Kong, drivers pay the cashiers at the shroff offices (which are often located elsewhere from theentrances and exits of carparks) with their tickets. If a ticket has not been paid, the barrier will not raise. Cashiers and shroff

officers are in recent years often replaced with automated machines.

Another variant of payment has motorists paying an attendant on entry to the lot, with the way out guarded by a one-way

spike strip that will only allow cars to exit.

Parking meters can also be used, with motorists paying for the time required for the bay they are parked in.

Other parking lots operate on a pay and display system, where a ticket is purchased from a ticket machine, and then placed

on the dashboard of the car. Parking enforcement officers patrol the parking lot to ensure compliance with the requirement.

Similar to this is the system where the parking is paid by the mobile phone by sending an SMS message which contains thelicense plate number. In this case, the virtual cashier books the car and the time when the message is sent, and later a new

SMS message must be sent whenever the time is due. The actual payment is then done via the mobile phone bill.

In the United Kingdom, it has been possible to pre-book parking with specialist companies, such as BCP, since 1978. This is

prevalent at all airports, major ports and in city centres.

Technology

Modern parking lots utilize a variety of technologies to help motorists find parking spaces and improve their experience. This

includes adaptive lighting, sensors, and mobile payment options. The Santa Monica Place shopping mall in California has

cameras on each stall that can help count the lot occupancy and find lost cars.[14]

Another parking company ParkMe has

used statical modelling to forecast parking occupancy in Austin Texas.[15]

See also

Charging station

Park Mark

Parking lot striping

Parking space

Multi-storey car park


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References

^ Schueler, Thomas R. "The Importance of Imperviousness". (http://www.cwp.org/Resource_Library/Center_Docs

/PWP/ELC_PWP1.pdf) Reprinted in The Practice of Watershed Protection. (http://www.cwp.org/Store/guidance.htm) 2000.

Center for Watershed Protection. Ellicott City, MD.

1.

^ United States. National Research Council. Washington, DC. "Urban Stormwater Management in the United States".

(http://www.epa.gov/npdes/pubs/nrc_stormwaterreport.pdf) October 15, 2008. p.5

2.

^ G. Allen Burton, Jr., Robert Pitt (2001). Stormwater Effects Handbook: A Toolbox for Watershed Managers, Scientists, and

Engineers (http://unix.eng.ua.edu/~rpitt/Publications/BooksandReports/Stormwater%20Effects%20Handbook%20by

%20%20Burton%20and%20Pitt%20book/MainEDFS_Book.html) . New York: CRC/Lewis Publishers. ISBN 0-87371-924-7.

http://unix.eng.ua.edu/~rpitt/Publications/BooksandReports/Stormwater%20Effects%20Handbook%20by

%20%20Burton%20and%20Pitt%20book/MainEDFS_Book.html. Chapter 2.

3.

^ California Stormwater Quality Association. Menlo Park, CA. "Stormwater Best Management Practice (BMP) Handbooks".

(http://www.cabmphandbooks.com) 2003.

4.

^ Wolf, Kathleen (2004). Trees, Parking and Green Law: Strategies for Sustainability (http://www.naturewithin.info/Roadside

/Trees_Parking_Green%20Law.pdf) . Georgia: USDA Forest Service, Southern Region Georgia Forestry Commission. pp. 8.

http://www.naturewithin.info/Roadside/Trees_Parking_Green%20Law.pdf.

5.

^ Slate. There's No Such Thing as Free Parking. by Tom Vanderbilt (http://www.slate.com/articles/news_and_politics/the_hive

/2010/06/theres_no_such_thing_as_free_parking.html)

6.

^ Streetsblog.org (http://www.streetsblog.org/2008/08/20/how-to-fix-off-street-parking-policy-before-its-too-late/)7.

^ Communities.gov.uk (http://www.communities.gov.uk/documents/planningandbuilding/pdf/155634.pdf)8.

^ BGSU Redirect (http://www.bgsu.edu/offices/safety/parking/Parking-parkingrules.htm)9.

^ Road Traffic Act 1988 (c. 52) (http://www.opsi.gov.uk/acts/acts1988/Ukpga_19880052_en_8.htm#mdiv192)10.^ House of Lords - Clark (A.P.) and Others v. Kato, Smith and General Accident Fire & Life Assurance Corporation PLC

Cutter v. Eagle Star Insurance Company (http://www.publications.parliament.uk/pa/ld199798/ldjudgmt/jd981022/clarke01.htm)

11.

^ ADA Accessibility Guidelines Parking and Passenger Loading Zones (http://www.access-board.gov/adaag/html/adaag.htm#4.6)12.

^ "Key Card Inserted In Slot Opens Gate At Automated Parking Lot." (http://books.google.com/books?id=AeADAAAAMBAJ&

pg=PA94&dq=1954+Popular+Mechanics+January&hl=en&sa=X&ei=CFMiT_23OIGvgwf68vjqCA&

ved=0CEQQ6AEwBQ#v=onepage&q&f=true) Popular Science, August 1954, p. 94, mid page.

13.

^ "Servant or snoop in the parking garage?" (http://articles.latimes.com/2011/jan/23/local/la-me-santa-monica-parking-20110123)

Los Angeles Times

14.

^ "Austin Realtime-Parking" (http://map.parkme.com/city/Austin)ParkMe15.

http://www.signshopofrc.com/docs/ADACompliance.pdf

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