RSSB only publishes information that is going to be of use to an identified audience. To assist in identifying the audience(s) for and purpose of the documents you produce the RSSB Communications team has produced a Publication Process Form. The Publication Process Form Explained does exactly that, explaining why every publication needs a full justification of the value it will add to the rail industry.
If you are contracted to provide textual information to RSSB that will be published, you will need to deliver it in documents that are written in RSSB's Word templates. Whether as part of a research project or another stream of work, RSSB requires you to use these templates effectively.
RSSB is moving towards a point where it will need structured information, so that it can publish to multiple delivery formats, and reuse and repurpose content for the benefit of its audiences. Using these templates is the first step in the process of developing structured information.
The advantage for you is that your overall writing time should be significantly shorter. The advantage for RSSB is that less manual intervention is needed in its publication processes.