Jun 1, 2018 13:26
6 yrs ago
English term
Absolute-Permissive Block (APB)
English to Serbian
Tech/Engineering
Transport / Transportation / Shipping
železnički saobraćaj
Absolute-Permissive Block signaling can be thought of as an extension to Automatic Block Signaling. The main purpose of APB is to protect those opposing movements. In other words, prevent head-on collisions in bidirectional, single track areas.