When I go to zone some land I have a box that hugs the road symbolizing the buildings. However, there is also a depth line drawn at what I would assume is the possible largest building size. The thing is I can still zone regardless of if that line is red or green. Will this zone still flourish if I place it when the line is red?
There is a line that appears a short distance away from the road while zoning. That line shows you the distance a building will require in order to develop a lot at that point. If there is insufficient room, the lot will not develop.
Think of it in terms of street widths. Streets are 1 street wide. Avenues are 2 streets wide. Low density lots are 2 streets long. Medium and high density lots are 4 streets long.
If you zone where two streets meet forming an acute angle, development will not occur until the point where the streets are 2 street widths apart.
When zoning against a medium density street (or higher), the helper line will be bright, dim, or red. Bright indicates medium and high density buildings have enough room. Dim indicates low density buildings have enough room (medium and high will not develop). Red means that no buildings will develop.