rdnelson,
It’s interesting to look at the layout of churches as the accommodating factor for pilgrims and pilgrimages. A lot changed in this time period and something as simple as the layout of a church helped affect those pilgrimages too – it is weird to think about. Although it is hard to tell if the designs were actually effective… I think it is safe to say that they were due to the many churches that used the same design and assume that pilgrims followed the assumed flow inside the church.