Hi,
In LU we dont use Aspect sequence charts, but we do include the aspects in control tables (certain sites / lines only).
For the module 3 exam, I had to understand the Aspect Sequence Chart... basically it shows how the signal aspects are shown to the driver in direction of travel. It shows main (R/G) and repeater (Y/G) signals. Also Junction/Route indicators for the different routes.
For the exam you will need to familiarise with the Network Rail symbols and signals (3, 4 aspect signals with single and double flashing yellows).
I would recommend looking at a typical Module 3 layout for control table and going through the signals and understanding the routes. Use highlighters to colour the different routes if it makes it clearer.
There are also some model answer aspect sequence charts that are part of the IRSE Exam model answers pack (
In LU we dont use Aspect sequence charts, but we do include the aspects in control tables (certain sites / lines only).
For the module 3 exam, I had to understand the Aspect Sequence Chart... basically it shows how the signal aspects are shown to the driver in direction of travel. It shows main (R/G) and repeater (Y/G) signals. Also Junction/Route indicators for the different routes.
For the exam you will need to familiarise with the Network Rail symbols and signals (3, 4 aspect signals with single and double flashing yellows).
I would recommend looking at a typical Module 3 layout for control table and going through the signals and understanding the routes. Use highlighters to colour the different routes if it makes it clearer.
There are also some model answer aspect sequence charts that are part of the IRSE Exam model answers pack (