Template:R is TRS-title - Pages created from redlinks, with titles worthy of topic coverage all there own. Such redirects add to the To-Do list category: Trainz title name needed. Many such pages should redirect initially to the glossary or Notations appendices with a paragraph explaining the topic, or such other article page or section as provides some basic coverage of the topic.
Template:R from Trainz - auto-categorized Trainz Wikibooks redirect terms into the auto-Category: redirects from Trainz pages. This was the original redirect template, whose use is now depreciated in favor of the most correct from the above list.