Admin -
I took section 3 this testing period and I second Clarissa on the topics she mentioned above. So far I haven't found good sources of those items (while I was studying or in a brief search after sitting for the exam). I agree with you that it would be nice to be more specific, but I'm not sure I could do that without trying to regurgitate parts of questions and answer choices which isn't allowed...my best attempt to share more specific topics within the rules is below. Please remove if I have gone too far...
Know what the typical elements of a framework plan are
Know what elements are included in each design phase and in what order they should occur: master planning, conceptual design, design development, etc.
Know typical elements of a complete street and what modes of transportation it should include and/or not include
Know what smart growth is, what it entails (density, walk-ability, mix of uses to create a walkable community, etc.)
Again, I haven't found good resources for all of these topics so I'm sorry I can't point anyone in the right direction. But, another point I would mention is this section, more than sections 1 & 2, seems to ask application questions. For example, "an LA does 'X', and the municipality asks them to incorporate 'insert topic here'. What elements would you include from the list below?" So it's not just knowing what each specification is from the LARE Orientation guide, but when and how to apply it. I hope that helps.