HOW TO PERFORM AN ACCESSIBILITY SURVEY Planning for the Survey: If possible, we suggest that a team of two or more individuals carry out the survey. It is very helpful if one person directs the process, takes pictures and notes while the other person performs the measurements. It is also suggested that people with disabilities be involved in the survey. Using a Floor Plan: It is often helpful to have a floor plan, or a sketch of a floor plan, for note taking while conducting the survey. Elements in this checklist can be can be identified on the floor plan. Tools Clipboard to make recording on the checklist easier.  Flexible steel tape measure.  or manual) for meas-  Carpenter’s level (either electronic uring slope on ramps and inclined walkways. Digital fish scale or door pressure gauge for measuring  door opening force. Digital camera for photo documentation of barriers and  accessible features. Conducting the Survey: 32 INCHES DOOR STOP MINIMUM WALL WALL Measuring clear width (unobstructed opening) - To DOOR FACE measure the clear width (unobstructed open space) at a door, measure the distance between the face of the door and the door stop, with the door open at 90 degrees. Clear width measurements at other locations (ramps, accessible routes, etc.) are measured in the same manner; measure the width of the unobstructed space for passage. Measuring slope - Slope is calculated by calculating the ratio of vertical rise to horizontal run. For example, if a ramp 6 inches in vertical height traverses a horizontal distance of 6 feet (72 inches) then the slope is 6 / 72 = 1 / 12 = 0.083 (8.3%). Typically the maximum allowable slope for a ramp is written as 1:12. To measure the slope, lay one end of a level on the uphill side of the ramp, carpenter’s lift the downhill end of the tool to bring it to level (bubble in the middle), and measure the distance between the downhill bottom edge of the level and the ramp surface. See the figure. In this case the slope is 3 inches rise over 36 inches horizontal distance or the ratio of 1:12. - If using a fish scale or Measuring door opening force similar device, tie one end of the scale to the door handle and observe the maximum force displayed on the scale as you pull the door from a closed positioned. CLEAR WIDTH (UNOBSTRUCTED OPENING)
HOW TO PERFORM AN ACCESSIBILITY SURVEY Planning for the Survey: If possible, we suggest that a team of two or more individuals carry out the survey. It is very helpful if one person directs the process, takes pictures and notes while the other person performs the measurements. It is also suggested that people with disabilities be involved in the survey. Using a Floor Plan: It is often helpful to have a floor plan, or a sketch of a floor plan, for note taking while conducting the survey. Elements in this checklist can be can be identified on the floor plan. Tools  Clipboard to make recording on the checklist easier.  Flexible steel tape measure.  Carpenter’s level (either electronic or manual) for meas- uring slope on ramps and inclined walkways.  Digital fish scale or door pressure gauge for measuring door opening force.  Digital camera for photo documentation of barriers and accessible features. Conducting the Survey: Measuring clear width (unobstructed opening) - To measure the clear width (unobstructed open space) at a door, measure the distance between the face of the door and the door stop, with the door open at 90 degrees. Clear width measurements at other locations (ramps, accessible routes, etc.) are measured in the same manner; measure the width of the unobstructed space for passage. Measuring slope - Slope is calculated by calculating the ratio of vertical rise to horizontal run. For example, if a ramp 6 inches in vertical height traverses a horizontal distance of 6 feet (72 inches) then the slope is 6 / 72 = 1 / 12 = 0.083 (8.3%). Typically the maximum allowable slope for a ramp is written as 1:12. To measure the slope, lay one end of a carpenter’s level on the uphill side of the ramp, lift the downhill end of the tool to bring it to level (bubble in the middle), and measure the distance between the downhill bottom edge of the level and the ramp surface. See the figure. In this case the slope is 3 inches rise over 36 inches horizontal distance or the ratio of 1:12. Measuring door opening force - If using a fish scale or similar device, tie one end of the scale to the door handle and observe the maximum force displayed on the scale as you pull the door from a closed positioned. CLEAR WIDTH (UNOBSTRUCTED OPENING) 32 INCHES DOOR STOP MINIMUM WALL WALL DOOR FACE