Safe access to road crossings and the issue of quiet vehicles in relation to pedestrians with a vision impairment: A literature review

This New Zealand study explored the research literature about quiet motor vehicles, like electric and hybrid cars, and the safety of pedestrians with vision impairment when making road-crossing decisions through an integrative literature review. A search of four research databases, two public library databases, and the New Zealand and the United States’ Departments of Transport online resources, as well as three relevant journals was conducted using key words. A rapid critical appraisal tool was used to assess whether the 38 found articles were valid and important, provided any answers to the research questions, and met the study’s inclusion criteria. A thematic analysis of 25 studies, which were included in this study, was completed to answer the following research questions: (1) What does the current literature say, as a whole, about the potential effects of ‘quiet vehicles’ on road-crossing procedures for pedestrians with a vision impairment? and (2) what remedies may exist to alleviate these effects, including possible changes to orientation and mobility (O&M) practice? Five emerging themes were found in the research: (1) crossing the road as a pedestrian with a vision impairment with quiet cars; (2) O&M instruction needs to change; (3) environmental access to road crossings; (4) developing and adapting technology and car sounds; and (5) rights of people with a vision impairment, policy, and legislation. The literature also confirmed that road crossings, when quiet vehicles are present, are dangerous for pedestrians with a vision impairment because such pedestrians rely on vehicular sounds for safe crossings. However, the review concluded that further research is needed in order to answer the research questions in this study. There were no studies about road-crossing procedures and quiet cars, and little research about possible remedies and O&M practice.