2024年4月13日发(作者：)

无障碍90°坡道坡度的宽度

英文回答：

The width of a 90° ramp for accessibility is

determined by various factors, including the slope of the

ramp and the space available for construction. The slope of

the ramp is an important consideration as it affects the

ease of use for individuals with mobility impairments.

In general, the maximum slope for an accessible ramp is

1:12, which means that for every 1 inch of vertical rise,

there should be 12 inches of horizontal run. This slope

ensures that the ramp is not too steep, allowing

individuals using wheelchairs or other mobility aids to

navigate it safely.

To calculate the width of the ramp, we need to consider

the minimum clear width required for accessibility.

According to the Americans with Disabilities Act (ADA)

guidelines, the minimum clear width for a ramp is 36 inches.

This width allows for a wheelchair to comfortably navigate

the ramp without any obstructions.

However, it is important to note that in certain

situations, a wider ramp may be necessary. For example, if

the ramp is located in a busy area with high foot traffic,

a wider ramp can accommodate multiple users simultaneously,

ensuring a smooth flow of people. Additionally, if the ramp

serves as an emergency exit route, a wider width may be

required to facilitate the quick evacuation of individuals.

In some cases, local building codes or regulations may

have specific requirements for the width of an accessible

ramp. It is important to consult these guidelines to ensure

compliance with local regulations.

To illustrate this, let's consider a scenario where I

am designing an accessible ramp for a public park. The park

is frequented by families, including those with strollers

and individuals using mobility aids. Given the space

available for construction, I determine that a 90° ramp

with a 1:12 slope is appropriate.

Based on ADA guidelines, the minimum clear width for

the ramp should be 36 inches. However, considering the high

foot traffic in the park, I decide to increase the width to

48 inches to accommodate multiple users at once. This wider

width allows for a more comfortable and efficient use of

the ramp, ensuring a positive experience for all park

visitors.

中文回答：

无障碍90°坡道的宽度取决于多种因素，包括坡度和可用于建

造的空间。坡度是一个重要的考虑因素，因为它影响着行动不便人

士使用的便利性。

一般来说，无障碍坡道的最大坡度为1:12，这意味着每1英寸

的垂直升高应该有12英寸的水平延伸。这种坡度确保了坡道不会太

陡，使使用轮椅或其他行动辅助工具的人能够安全地通过。

为了计算坡道的宽度，我们需要考虑无障碍通行所需的最小有

效宽度。根据《美国残疾人法案》(ADA)的指南，坡道的最小有效宽

度为36英寸。这个宽度可以确保轮椅在坡道上舒适地通行，没有任

何障碍物。

然而，需要注意的是，在某些情况下，可能需要更宽的坡道。

例如，如果坡道位于人流量大的繁忙区域，更宽的坡道可以同时容

纳多个使用者，确保人流畅通。此外，如果坡道作为紧急出口路线，

可能需要更宽的宽度以便迅速疏散人员。

在某些情况下，当地的建筑规范或法规可能对无障碍坡道的宽

度有具体要求。重要的是要咨询这些指南，以确保符合当地的规定。

为了说明这一点，让我们考虑这样一个场景，我正在为一个公

园设计一个无障碍坡道。这个公园经常有家庭和使用婴儿车以及行

动辅助工具的人士光顾。根据可用的空间，我确定一个坡度为1:12

的90°坡道是合适的。

根据ADA指南，坡道的最小有效宽度应为36英寸。然而，考虑

到公园的人流量大，我决定将宽度增加到48英寸，以便同时容纳多

个使用者。这种更宽的宽度可以更舒适、高效地使用坡道，确保所

有公园游客都有一个积极的体验。