A portable ramp is used for moving around, by people who are not able to move from one place to another. Additional functions might include the ability to control direction of movement, adjustable seats and handles, provision for keeping some articles like glasses, plates, etc.
There are many designs depending upon the usage. You can find the latest designs of ramps via https://arasolutions.com.au/product/threshold-ramp/.
Using these threshold ramps, the disable person need not confine himself to the bed. He can move around the home or even venture outside to live life as close to normal as possible.
They are made of metal or very strong composites which can tolerate the weight of a disable person. Ramps help people to easily move up or down some place where there is a difference of height.
These can come in different variants of height, incline and making materials. If you are going to any place which is not disability friendly, meaning that it does not have sufficient provisions facilitating the access of people, threshold ramps come very handy in these situations.
These devices could be purely mechanical in nature or these can even be electronic. Further, these could be made of metals or composites and designed as per the usage requirements.