LP's undergo route learning before they can start full fledged operations on any particular section. As a result of route learning, they know each and everything about the section. So such boards are not much of a concern since LP's know exactly where...

LP's undergo route learning before they can start full fledged operations on any particular section. As a result of route learning, they know each and everything about the section. So such boards are not much of a concern since LP's know exactly where it is and they know where exactly to apply brakes.

Permanent speed restriction boards are pentagonal as in the picture above.On the Ratlam-Kota section I've observed that permanent speed restriction boards for mainline are preceded by a caution indicator board and the approaching maximum speed is also...

Permanent speed restriction boards are pentagonal as in the picture above.On the Ratlam-Kota section I've observed that permanent speed restriction boards for mainline are preceded by a caution indicator board and the approaching maximum speed is also painted on the caution indicator so that the driver has advance warning of at least one kilometer in which to slow down.

Many of them know about speed limits by heart.