Definition of "anti-slip"

The first English Electric units were not fitted with an anti-slip brake, but a hurried consultation of the wiring diagram showed that it should be possible to hold in the low-voltage anti-slip relay for long enough to let speed build up without cutting off the motor current.

1962 April, R. K. Evans, “The Acceptance Testing of Diesel Locomotives”, in Modern Railways, page 268

The 110-year-old structure has had its steelwork repaired and replaced, anti-slip flooring added, and new lighting fitted.

2020 May 20, “Network News: Arnside footbridge receives overhaul”, in Rail, page 13