Slip siding protects the station limit. It is a type of siding that is used to protect the edge of a railway track from damage. It is made of a durable material, such as steel or concrete, and is designed to withstand the impact of trains. Slip siding is typically installed at the end of a station platform, where it helps to prevent trains from derailing. It can also be used to protect other areas of the railway track, such as curves and crossings.
Option A: Station limit is the boundary of a railway station. It is marked by signs and signals. Trains are not allowed to pass beyond the station limit without permission.
Option B: Block section is a section of railway track that is controlled by a signal. Trains are only allowed to enter a block section if the signal is green.
Option C: Station section is a section of railway track that is located within a station. It is typically shorter than a block section and is controlled by a different set of signals.