What aspect does maintenance of an escalator typically focus on?

Maintenance of an escalator primarily concentrates on ensuring that all safety features operate correctly. This focus is essential to prevent accidents and ensure a safe environment for users. Safety features in escalators include emergency stop buttons, safety brakes, and proper functioning of handrails and sensors. Regular maintenance checks help to identify and rectify any potential issues that could compromise passenger safety, complying with regulatory standards and best practices within the industry.

The emphasis on safety aligns with the overall mission of escalator maintenance, which is to provide reliable and secure services day to day. While enhancing visual appeal, reducing weight, or increasing travel speed may be considerations at different stages of design or operation, they do not take precedence over the fundamental requirement that safety features must be fully operational for the escalator to be considered safe for public use.