step-free en · ADJ
Etymology
From step + -free.
Meanings
-
(not-comparable) Without steps or stairs acting as a hindrance or obstacle.
Key to the design is the 'intelligent step' that detects various platform positions via ultrasonic sensing equipment, to close the gap between the entrance doorstep [of carriages] and platform edge. This provides step-free access for passengers.
2019 October 23, “Testing begins as Merseyrail moves closer to new '777s'”, in Rail, page 29:The upgrades, set to support up to 14,000 new homes in Southwark and Lewisham, include further signalling adjustments to shorten block sections and enable a 20tph service [20 trains per hour], along with an upgrade of Surrey Quays station including provision of step-free access and construction of a new station at Surrey Canal Road.
2019 October, “Funding for 20tph East London Line Service”, in Modern Railways, page 18: