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This guide explains requirements in the ABA Standards for parking. 

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Required Number [§F208]

Accessible parking spaces are required for each parking facility on a site, such as lots and garages.  Requirements apply equally to public and employee or restricted parking.  On sites with multiple parking facilities, the minimum number of accessible spaces must be calculated separately for each parking facility instead of on the combined total of parking spaces provided on the site.  At least one of every 6 accessible spaces, or fraction of 6, in each parking facility must be sized to accommodate vans.


Accessible Parking on a Site

Site with building served by two separate lots in front and a multi-level parking deck in the back. Notes: The required number of accessible spaces, including van spaces, is calculated separately for each parking lot and garage on a site. Accessible spaces must be dispersed among accessible entrances and be located on the shortest accessible route to the entrance they serve.  Exception:  Compliance is not required for parking spaces used exclusively for buses, trucks, other delivery vehicles, law enforcement vehicles, or vehicular impound if accessible passenger loading zones are provided where such lots have public access (§F208.1, Ex.).

 


Minimum Number of Accessible Parking Spaces [§F208.2]

Parking Facility Total Minimum Number of Accessible Spaces
Standard Van* Total 
(Standard + Van)
1 - 25 0 1 1
26 – 50 1 1 2
51 – 75 2 1 3
76 – 100 3 1 4
101 – 150 4 1 5
151 - 200 5 1 6
201 – 300 5 2 7
301 – 400 6 2 8
401 – 500 7 2 9
501 – 550 9 2 11**
551 – 600 10 2 12**
601 – 650 10 3 13**
651 – 700 11 3 14**
701 – 750 12 3 15**
751 – 800 13 3 16**
801 – 850 14 3 17**
851 – 900 15 3 18**
901 – 950 15 4 19**
951 – 1000 16 4 20**
1001 –1100 17 4 21***
1101 – 1200 18 4 22***
1201 – 1300 19 4 23***
1301 – 1400 20 4 24***
1401 – 1500 20 5 25***
1501 – 1600 21 5 26***
1601 – 1700 22 5 27***
1701 – 1800 23 5 28***
1801 – 1900 24 5 29***
1901 – 2000 25 5 30***
2001 and over (*** - *) * ***

* at least 1 of every 6 accessible spaces or fraction of 6
** 501 - 1000: 2% of total
*** 1001 and over: 20 + 1 for each 100 or fraction thereof over 1000 

Valet ParkingValet parking icon
Accessible spaces are required in parking facilities with valet parking because vehicles specially equipped for persons with disabilities may not be easily used by others.  Further, valet parking may not be available at all hours a parking facility is open.  An accessible passenger loading zone also is required at facilities with valet parking (§F209.4).

 

  Restriping of existing parking space markings
  Refreshing existing striping in place for several spaces or filling potholes is typically considered normal maintenance, not an alteration.

 

Alterations and Additions

Accessible spaces are required where parking facilities are altered or added.  The term ‘alterations’ includes resurfacing of vehicular ways (§F106.5).  Resurfacing or resealing and projects that add new parking spaces constitute alterations (or additions) and must include accessible spaces as required in the scoping table.  Normal maintenance, such as pothole repair, surface patching, or repainting in place existing striping for a few spaces, is not considered an alteration except where it affects a facility’s usability.

 

Location [§F208.3]

   Accessible parking spaces located at entry point of ramp to building entrance
  In some cases, achieving the shortest accessible route will require locating accessible spaces closest to an entrance ramp instead of the entrance doors.

 

Where parking serves multiple entrances to a facility, accessible spaces must be dispersed among accessible entrances. (If the number of accessible entrances exceeds the number of accessible spaces, additional accessible spaces are not required). Accessible parking spaces must be located on the shortest accessible route to an accessible entrance, relative to other spaces in the same parking facility. A maximum travel distance is not specified in the Standards.

Accessible spaces required for one parking facility can be located in another if doing so results in substantially equal or better access in terms of travel distance to an accessible entrance, parking fee, or user conveniences such as protection from weather, better security and lighting. The minimum number must still be determined separately for each parking facility. Locating accessible spaces required for a parking structure in a surface lot often will not qualify for this exception because such a location typically offers less convenience, security, and protection from the elements.

 

Multiple Parking Facilities on a Site

Scoping and dispersion requirements ensure access to all parking facilities on a site, including large sites with many lots and garages, such as airports, shopping malls, and campuses. The term “parking facility” encompasses parking lots, as well as garages, decks, and other parking structures. The minimum number of accessible parking spaces must be determined separately for each parking facility.

Parking facilities are to be treated separately for scoping purposes if they are either:

  • structurally different (e.g., surface lot versus parking garage or deck);
  • dedicated to, and separately serve, different facilities on a site;
  • segmented and separated by guard rails, fencing, or barriers, particularly where they serve different users; or
  • separated by streets or roadways (as opposed to drive aisles on a site).

Surface lots that are contiguous or that are segmented by landscaping or drive aisles (i.e., vehicular passageways located within parking areas), but not streets or roadways, typically can be treated as a single parking facility.

Example Site: Shopping Mall

Shopping mall with surface lot parking on all sides with one outer building served by same lot and another outer building with a parking lot separated from the mall parking areas by a raised sidewalk.  Notes:  The parking lot serving the shopping mall (center) and store (lower right) can be treated as one parking facility because the parking area is not divided or separated.  Accessible spaces must be dispersed and located at different facilities and accessible entrances served by the parking lot.  This lot is treated as a separate parking facility because it is divided from the surrounding lot by a raised sidewalk and is dedicated to a specific building.  Parking areas that are labeled (e.g., “Lot A”) to help users locate their vehicles but that are part of the same lot (i.e., not separated) do not have to be treated as separate parking facilities.

design compassRecommendation:  Where spaces within the same parking facility are assigned or restricted to specific user groups, consider calculating the minimum number of spaces separately for each type of parking or proportionately dispersing accessible spaces based on the overall total across each type of parking to ensure sufficient access for all users.

 

Multi-level parking garageGarage Parking

The Standards apply to parking garages, including those provided below grade.  At sites that also include surface lots, a garage is treated as a separate parking facility for scoping purposes.

 

Multi-Level Parking Garage with Direct Connections to Facility

Multi-Level parking garage with direct connections to adjacent building.  Notes: Each direct connection to a facility must include an accessible entrance (§F206.4.2).  Dispersing accessible spaces among accessible entrances requires placement of non-van accessible spaces on different levels.  All van spaces can be grouped on one level (§F208.3, Ex. 1).

Multi-Level Parking Garage Not Serving a Particular Facility

Multi-Level parking garage not serving a particular facility.  Notes:  In parking garages that do not serve a particular facility, accessible spaces must be located on the shortest accessible route to an accessible pedestrian entrance of the garage (§F208.3).

 

Accessible spaces, including van spaces, must be located so that they provide the same level of protection and security as other spaces in the garage.  Locating accessible spaces required for a garage on the exterior is not usually acceptable. 

Mechanical Access Parking Garagesmechanical access parking

Accessible parking spaces are not required in mechanical access parking garages where lifts are used to stack vehicles.  However, such facilities must provide at least one accessible passenger loading zone at vehicle drop-off and pick-up areas so that people with disabilities can transfer from vehicles (§F209.5).

 

Hospital Outpatient Facilities [§F208.2.1]

The Standards require a higher level of accessible parking at hospital outpatient facilities.  At least 10% of patient and visitor parking spaces that serve such facilities must comply.  This applies to those units in hospitals that provide regular or continuing medical treatment without overnight stay.  Other types of medical facilities not located in hospitals, including doctors’ offices and independent clinics, are not subject to this requirement but to the regular scoping table.

Accessible Parking at Outpatient Facilities in Hospitals

 Hospital with outpatient facility highlighted and portion of parking lot serving outpatient facility highlighted.  Notes:  10% scoping required for visitor/ patient parking serving hospital outpatient facilities.  Within a multi-use facility, the 10% requirement applies to the number of visitor/ patient spaces intended to serve hospital outpatient facilities. Most local zoning codes require parking spaces based on facility square footage, occupant load, and occupancy and can be consulted when determining the number of spaces serving outpatient facilities.  Spaces serving employees or other areas of a hospital are subject to the regular scoping table.

Rehabilitation and Outpatient Physical Therapy Facilities [§F208.2.2]

At least 20% of patient and visitor parking spaces must be accessible at outpatient physical therapy facilities (including those not located at hospitals) and at rehabilitation facilities that specialize in treating conditions that affect mobility. Conditions affecting mobility include:

  • those involving the use of mobility aids and devices (braces, canes, crutches, prosthetic devices, wheelchairs, or powered mobility aids);
  • arthritic, neurological, or orthopedic conditions that severely limit one's ability to walk;
  • respiratory diseases and other conditions which may require the use of portable oxygen; or
  • cardiac and other conditions that impose substantial limitations on one’s mobility.

Rehabilitation facilities that provide, but that do not specialize in, services or treatment for persons with mobility impairments, such as general rehabilitative therapy centers, are not subject to the 20% requirement.  In mixed-use facilities, the 20% may be applied only to the portion of spaces that are determined to serve the types of rehabilitation or outpatient therapy facilities covered by this provision.


house symbolResidential Facilities [§F208.2.3, §F208.3.2]

Accessible parking at residential facilities is based on the ratio of parking spaces to dwelling units.

Parking at Residential Facilities

Parking at multi-family residential facility.  Notes:  Resident Parking (§F208.2.3.1)  Where at least one parking space is provided for each dwelling unit, at least one accessible space is required for each mobility accessible unit.  Spaces must be located on the shortest accessible route to the dwelling unit entrance they serve (§F208.3.2). Those assigned to specific units are not required to be identified by signs (§F216.5, Ex. 2).  If the total number of resident spaces is less than the total number of units, accessible parking is based on the scoping table in F208.2 (but providing one accessible space for each mobility accessible unit is advisable).  Additional Resident Parking (§F208.2.3.2)  At least 2%, but no fewer than one, of resident parking spaces provided in excess of the one per unit total must comply. These spaces must be dispersed among all types of resident parking except where substantially equal or greater accessibility is provided in terms of distance from an accessible entrance, parking fee, and user convenience (§F208.3.2, Ex).  Visitor and Other Parking (§F208.2.3.3)  Parking spaces for guests, employees, or other non-residents are subject to the scoping table in F208.2.

Accessible Parking Spaces [§502]

Requirements for accessible parking spaces address the size and marking of regular and van spaces and access aisles, surfaces, vertical clearance at van spaces, identification, and connecting accessible routes.

Accessible Routes and Access Aisles

Accessible parking space with access aisle adjoined by a curb ramp with a top landing 36” deep min.  Accessible route from access aisle on curb ramp and sidewalk highlighted.  Notes:   Accessible routes must connect directly to access aisles. Curb ramps, where provided, cannot protrude into access aisles (which cannot slope more than 1:48 max.) to accommodate wheelchair transfers and vehicle ramps or lifts (§502.4).  A landing at least 36” deep is required at the top of curb ramps; in alterations where space for this landing is unavailable, curb ramps must have side flares with a 1:12 max. slope (§406.4).    Bollards, signs, columns, or other elements cannot be located in the access aisle or reduce the minimum clear width of accessible routes.  Spaces and aisles must be designed so that parked vehicles do not obstruct the required clear width of adjacent accessible routes (§502.7).  Detail:  Parallel curb ramp with landing 48” min long, 60” preferred.  Note:  Where space for curb ramps is limited, including in alterations, parallel ramps can provide an alternative. 

design compassRecommendation:  Configure accessible routes so that they run in front of, instead of behind, parking spaces.

 

Accessible Parking Space

Two accessible parking spaces 8’ wide min. with an access aisle in between that is 5’ wide min. and as long as the space. Notes:  Vehicle Spaces (§502.2) Spaces must be marked to define the 96” minimum width.  Access Aisle (§502.3)  An access aisle at least 60” wide and at least as long as the parking space is required on either side of the parking space and must be marked to discourage parking in it. Two spaces can share one aisle.  Access aisles cannot overlap vehicular ways.  Surfaces (§502.4) Parking spaces and access aisles must meet requirements for floor and ground surfaces (§302) and cannot have changes in level other than slopes not exceeding 1:48. Markings (§502.1, §502.2, §502.3.3) Both the parking space and access aisle must be marked.  The marking method and color is not specified in the Standards, but may be addressed by state or local codes or regulations.  Detail:  width measured to centerline of marking.  Note:  The width of spaces and aisles is measured to the centerline of markings (but it can include the full width of lines where there is no adjacent parking space or aisles).

 

Van Accessible Parking Spaces [§502.1 - 502.5]Person using wheelchair exiting van with ramp parking in accessible van space.

At least one space for every 6 or fraction of 6 accessible spaces must be van accessible.  Van spaces provide an additional 3 feet of width to accommodate vehicles equipped with ramps or lifts. This extra space can be added to either the parking space or to the access aisle.  A wider access aisle saves space since two spaces can share one aisle, but wider spaces can help prevent misuse of the access aisle as a parking space.

 

Van Space: Wider Parking Space

 Van accessible parking space 132” wide min. and access aisle 60” wide min.

 

design compassRecommendation:  Sizing all accessible spaces (or access aisles) for van accessibility provides greater convenience and helps ensure that van spaces remain available for those who need them.  Where a van space and regular accessible space share an aisle, it is advisable to have the access aisle serve the van space on the passenger side (as is required where van spaces are angled) since backing into spaces can be more difficult with vans.



Van Space: Wider Access Aisle


Van accessible parking space 96” wide min. and access aisle 96” wide min.

 

Angled Van Spaces

Angled van accessible parking spaces with an access aisle on the passenger side of each space.As with regular accessible spaces, van accessible spaces can share a common access aisle.  However, where van spaces are angled, an access aisle is required for each space on the passenger side (§502.3.4).  This is the side from which ramps and lifts typically deploy.

design compassRecommendation:  Where standard (non-van) accessible spaces are angled or otherwise restrict entry to one direction only, providing one access aisle for each accessible space (or on both sides where only one accessible space is provided) will offer greater usability by accommodating access on either side.  Otherwise, consider designing accessible spaces to permit both front-in and back-in parking.

 

Plan view of garage with the following highlighted: vehicular route from entrance to van space, van space and access aisle, and vehicular route from van space to exit.Vertical Clearance [§502.5]

A 98” minimum vertical clearance is required for van parking spaces/ access aisles and the vehicle route to these spaces from an entrance and from these spaces to an exit.  Van spaces can be grouped on one level of parking structures.

design compassRecommendation:  Signs at garage entrances that indicate vertical clearances and the location of van spaces are advisable.

Pay Stations

Pay stations and other elements that serve accessible parking spaces must comply with requirements for operable parts (§309) and be served by an accessible route.  Requirements for operable parts cover clear floor space, operating characteristics, and location within accessible reach ranges.  Operable parts that are used from inside vehicles, such as garage ticket dispensers at vehicle entry, are not required to comply with the Standards (although policies or practices may need to be modified to accommodate persons with disabilities who are unable to use such devices).

Man using power chair at pay station.

Requirements for operable parts include:

  • Clear floor space for a forward or side approach (§309.2)
  • Location within accessible reach ranges (§309.3)
  • One-hand operation without tight grasping, pinching, twisting of the wrist, or more than 5 pounds of force (§309.4)


Identification [§F216.5, §502.6]

Post-mounted accessible parking space sign 60” high min. measured to bottom edge

Accessible spaces must be identified by signs with the International Symbol of Accessibility (ISA) (§703.7.2.1). Signs identifying van spaces must include the term “van accessible.” This designation is informative and does not restrict use of such spaces to van users only. No other text or content is required by the Standards.

Signs must be at least 60” high measured to the bottom edge so that they are visible while vehicles are parked in a space. Signs can be on posts, or where feasible, on walls or suspended from ceilings (an 80” minimum headroom clearance is required at signs suspended above circulation paths (§307.4)). ISA designations on the parking surface, even if required by a state or local government, cannot substitute for above-ground signs that remain visible at all times.

State or local codes and regulations may address other sign characteristics, including size, color, and additional content, such as “reserved” or violation fines, but the ABA Standards do not.

 

Sign with International Symbol of Accessibility and term “van accessible.”  Another sign contains the International Symbol of Accessibility and “reserved parking” with a separate sign below station “van accessible.”  

  

Exceptions

Facility with four parking spaces with one served by an access aisle.If a total of 4 or fewer parking spaces (inaccessible and accessible) is provided on a site, the required accessible space does not have to be identified by a sign (i.e., reserved exclusively for use of people with disabilities) (§F216.5, Ex. 1).  However, all other requirements for spaces, including access aisles, still apply.

house symbolAt residential facilities, identification of accessible spaces is not required where spaces are assigned to specific dwelling units (§F216.5, Ex. 2).

 

Electric Vehicle Charging Stations

electric vehicle charging station symbol The Standards do not include specific provisions for electric vehicle (EV) charging stations. However, it is advisable to address access to EV charging stations so that they are usable by people with disabilities.  If provided, accessible spaces at EV charging stations cannot count toward the minimum number of accessible car and van parking spaces required in a parking facility.

Accessible EV charging station.  Notes:  Recommendations:  Provide access to a reasonable number of spaces serving EV charging stations or use the scoping table in §F208.2 to determine an appropriate number.  (The number of accessible spaces serving EV charging stations must be determined separately from the required number of car and van parking spaces.)  Provide an accessible route on both sides of the vehicle space that connects to the charging station for easier access.  A vehicle space at least 10’ – 13’ wide is advisable.  A 10’ width offers an extra 2’ that effectively provides a 5’ aisle on one side when paired with the accessible route; a 13’ wide space will allow an 8’ aisle. This flexibility is helpful since the parking direction is determined by the location of the charging station and the vehicle connection.  Use the International Symbol of Accessibility only where spaces are reserved exclusively for people with disabilities.   

 

question mark

 

 


Common Questions

Scoping Requirements

Must the minimum number of spaces be determined separately for each parking facility on a site or can it be based on the collective total of spaces provided on a site?

The minimum number of accessible parking spaces, including van accessible spaces, must be calculated separately for each parking facility on a site. Spaces required for one parking facility can be provided in another where doing so results in equal or greater access and convenience for users, but the required number must still be calculated separately for each parking facility.

Is accessible parking required on sites where no parking is intended?

No, the ABA Standards require accessible spaces only where parking is provided. They do not require accessible spaces where parking is not provided at all. Most local and state codes and regulations address the amount of parking required for a site.

Are accessible spaces required in employee parking lots?

Yes, the requirements for accessible parking spaces apply equally to employee parking facilities and are not limited to visitor parking. Where a parking facility contains parking spaces for visitors and spaces reserved for employees only, it is important that sufficient access is provided to both types of spaces. In this case, it is advisable to calculate the minimum number separately for each type of space as though they were separate parking facilities, but this is not required if they are both located in the same parking lot or garage. Both accessible visitor and employee spaces must be on the shortest accessible route to an accessible entrance.

Are accessible spaces required in temporary parking lots and in unpaved lots, such as gravel or grass lots?

Yes, the ABA Standards apply to both permanent and temporary facilities, including parking facilities (§F201.3). In all parking facilities, including gravel or grass lots, parking spaces and access aisles must be marked and have firm, stable, and slip resistant surfaces as specified for accessible ground and floor surfaces (§302).

Is resurfacing of a lot considered an alteration?

According to the definition of "alteration," normal maintenance is not considered an alteration unless it affects a facility’s usability. For example, if a lot is to be resurfaced or its plan reconfigured, accessible spaces must be provided. However, work that is primarily maintenance, such as surface patching, does not trigger a requirement for accessible spaces. When the work is not considered an alteration, providing accessible spaces is advisable where sufficient accessible parking is lacking and may be necessary in meeting obligations for program access under Section 504 of the Rehabilitation Act.

Are accessible spaces required for tractor trailers at rest stops and other facilities?

No, the Standards exempt those spaces used exclusively for trucks, as well as buses, other delivery vehicles, law enforcement vehicles, or vehicular impound.

How is access to be provided to spaces for recreational vehicles?

The ABA Standards include requirements for outdoor developed areas on federal lands such as camping and picnic facilities, trails, and beach access routes. These provisions address access to RV and other parking spaces at camping and picnic units as well as pull-up spaces at dump stations, including space width (minimum 20’, or 16’ in the case of a second adjoining space) and utility and sewage hook-ups (§1011 and §1012). These provisions can be consulted for guidance in addressing access to RV parking provided on other sites. At other types of sites with both RV and regular parking spaces, scoping should be applied separately to both types which will permit accessible RV spaces to be located among other RV spaces so long as they are on the shortest accessible route to facility entrances among such spaces.

Are accessible parking spaces required on a site where valet service is provided but vehicles are parked off site, such as in a public parking garage or on public streets?

Parking facilities with valet parking must provide accessible parking spaces to allow self-parking by people with disabilities (and must also provide an accessible passenger loading zone (§F209.4)). This applies where parking spaces are provided on the same site as the valet parking service. However, if valet parking service is provided on a site without any parking spaces, accessible parking spaces are not required on the site (but policies and practices to accommodate people with disabilities must be in place under the Department of Justice’s ADA regulations). Public garages and other parking facilities subject to the Standards must comply and provide accessible parking spaces in any case. If a parking garage does not provide valet parking, or if valet parking service is provided off site by a different entity that parks vehicles in the garage, an accessible passenger loading zone is not required at the garage.


Location and Dispersion

Do the Standards specify a maximum travel distance between parking spaces and facility entrances?

No. The Standards require that accessible parking spaces be on the shortest accessible route to an accessible entrance, but they do not specify a maximum travel distance, nor do they require that parking be installed where none is planned (e.g., directly in front of an entrance).

Can accessible spaces required for one parking facility be located in another one instead?

Accessible spaces required for one parking facility can be located in a different parking facility on the site if it results in substantially equal or greater access and convenience for users. (§F208.3.1, Ex. 2). The term “user convenience” applies to factors such as protection from the weather, security, lighting, and comparative maintenance.

Can van spaces required for a parking garage be located in a surface lot instead?

No. Accessible parking, including van spaces, required for one parking facility can be located in another parking facility only where it results in substantially equal or greater access and convenience for users. Open lots do not provide the same level of protection, security, and lighting as garage parking.

Is vertical access required to all levels of a parking garage?

It depends. The Standards require that an accessible route connect each story in “multi-story” facilities but include certain exceptions based on the number of stories or the square footage per floor (§F206.2.3). As defined in the Standards, a “story” contains space for “human occupancy” (i.e., equipped with ventilation, light, and means of egress). Levels of open parking structures that do not contain occupiable space are not considered “stories” under the Standards. However, an accessible route must connect all accessible parking spaces to the accessible entrances they serve as well as any other elements or spaces required to be accessible. Vertical access must be provided as necessary to address any changes in level along these required accessible routes. For example, in underground parking garages, elevators or, where feasible, pedestrian ramps, are necessary to provide an accessible route from parking levels with accessible spaces to the facility they serve.

Are accessible spaces required on all levels of a multi-level parking structure?

It depends. If a parking facility has entrances and exits on one level only, standard and van accessible spaces are required on that level so that they are on the shortest accessible route to the entrance/exit. However, where a parking facility has entrances/exits or direct connections to an adjacent building on multiple levels, standard accessible spaces must be dispersed among accessible entrances on different levels, but van spaces can be grouped on one level under all conditions (§F208.3.1, Ex. 1).


Technical Requirements

Can accessible routes run behind other parking spaces?

The ABA Standards require that an accessible route connect parking space access aisles to the accessible entrance they serve but they do not specifically prohibit the accessible route from running behind parking spaces. However, it is recommended that accessible routes be configured so that they run in front of parking spaces for greater safety.

Are bollards, poles, columns, or other elements permitted within the marked area of access aisles?

No elements, including bollards, columns, or poles, can encroach into the defined area of access aisles. (The width of spaces and aisles is measured to the centerline of markings but can include the full line width where there is no adjacent parking space or aisle).

Must accessible routes or crossings be marked?

No. The ABA Standards require accessible parking spaces and access aisles to be marked, but they do not require accessible routes, including portions crossing vehicular ways, to be marked.

How are parking spaces and access aisles to be marked?

The ABA Standards do not specify the method or color of parking space and access aisle markings. State or local codes and regulations may specify such markings. It is important that access aisles be marked in a manner that discourages parking in them, especially those that are 8 feet wide at van spaces.

What are the requirements for the size and color of signs?

The ABA Standards require accessible spaces to be designated by the International Symbol of Accessibility. In addition, van spaces must be labeled by the term “van accessible.” The Standards do not specify sign color, size, or other characteristics. Signs may be subject to additional specifications under applicable state or local requirements or the Manual on Uniform Traffic Control Devices published by the Federal Highway Administration.

Can surface decals substitute for post- or wall-mounted signs?

No, the Standards require signs identifying accessible parking spaces that are at least 60” high measured to the bottom edge of the sign so that they are visible when a vehicle is parked in the space. Surface decals or other identifying features may be required by local or state codes and can be provided in addition to, but not in place of, signs required by the ABA Standards.

Is front-in only or angled parking prohibited for accessible parking spaces?

No, the ABA Standards do not prohibit front-in only, back-in only, or angled parking spaces. However, where van spaces are angled, the Standards require the access aisle to be located on the passenger side which is the side where vehicle ramps and lifts are typically deployed. Since users pull in or back in depending on which side the access aisle is needed, it is advisable to design both regular and van accessible spaces so that they can be entered in either direction. Otherwise, consider providing one access aisle at each regular accessible space instead of allowing two spaces to share an aisle so that access is available on both sides.

Can accessible spaces be parallel instead of perpendicular?

The Standards do not specifically require that accessible spaces be perpendicular instead of parallel, but perpendicular parking spaces are preferred at facilities located on sites because most allow users to park facing in or out depending on the side that the access aisle is needed. If accessible parking spaces at facilities located on sites (as opposed to those located along public streets) are parallel, they must fully comply with all applicable requirements, including those for access aisles and for van spaces.

Must van accessible spaces be restricted to van use?

No. The required "van-accessible" designation is informative, not restrictive, in identifying those spaces that are better suited for van use and does not restrict the use of spaces to vans only. State or local codes and regulations may require additional verbiage, but the ABA Standards do not. Additional content on van designation signs can recommend that car drivers not use the space unless no other accessible parking space is available.

Do the surface requirements, including those for maximum slope (1:48), apply to all portions of a parking lot?

No, the surface criteria apply only to accessible parking spaces, access aisles, and accessible routes, including those serving other elements or spaces besides parking spaces. Transitions to these areas from other portions of lots should be smooth to prevent tripping hazards.

 

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