Boundary locations - some guidance please

[rynd2it]

I have a 009 layout, the baseboards track and track plan were all inherited so all I'm doing is adding my ideas of features to the plan. I've got as far as creating some background scenery and features such as the river and mill, a station and loco shed/coal yard, a goods yard area and a small canal basin. The roadway will run at the front between the canal basin and baseboard edge. I've attached a photo of the area as it is now.

 

I am undecided as to what boundaries I should create between "railway" property and public access. One idea I have is designate it all railway property and forget about fences etc. Or I could make the canal basin and roadway public and put a fence just behind the basin separating the goods yard. A similar problem occurs at the other end where I have a station forecourt between the station track and the roadway; here I think there has to be a dividing fence with the roadway in the "public" area.

 

Any comments, ideas etc appreciated