When I began college my alma mater had just put up a new academic building. When being given a tour the guide noted that the sidewalks would not be put in until the following year. When asked why this was so he responded, "Because they want to wait and see where the footpaths appear because that will show how people are getting to and from the building."
That insight is helpful for the Church as well, is it not? There are always people coming and going from church life. How do you keep an eye on how people are entering or exiting your church life?
Also, it is interesting that rather than force a behavior on people (i.e. putting sidewalks in and forcing people to travel in perhaps awkward ways) it is better to build what you're called to build and then look at how people get in and out of it before making any further improvements or additions.