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Parking Lot Design: Theory and Concepts

 
ADAAG Requirements

The Americans with Disabilities Act Accessibility Guidelines for Buildings and Facilities (ADAAG) specifies the number and dimensions of accessible parking spaces. Where possible, the accessible parking spaces should be provided on the accessible path to the facility entrance and also minimize the distance traveled.

Total Parking in Lot

Required Minimum Number Of Accessible Spaces

1 to 25

1

26 to 50

2

51 to 75

3

76 to 100

4

100 to 150

5

151 to 200

6

201 to 300

7

301 to 400

8

401 to 500

9

501 to 1000

2 percent of total

1001 and over

20 plus 1 for each 100 over 1000

One in eight accessible spaces, but not less than one, should be "van accessible". These spaces should be 96 in (2440mm) wide. Parking access aisles need to be part of the accessible path to the building. Two adjacent accessible spaces may share a common access aisle. The access aisle should be 5 feet wide. Parking spaces and access aisles should be level, with surface slopes not greater than 1:50 (2%) in all directions.