Classification of innovative wheelchair constructions with the option of transport via stairs

Modern transport systems are developed following universal design, considering the requirements of people with disabilities. Despite the detailed legal regulations in construction and industry, there are still many barriers, e.g., architectural barriers, making it challenging to move around in wheelchairs. Designs of wheelchairs with special capabilities provide a chance to overcome these barriers. The article aimed to present various methods of climbing stairs by wheelchairs with special abilities. The review of works was related to the research work of the scientific team from the Faculty of Transport of the Warsaw University of Technology. Against the background of other works, the author's own design solution was presented.