Why Turn Raised Beds 15 &16 Around ?

If you have been following my development plans for my allotment you would have seen that my objective was to turn the 2.4m x 1.2m framed beds into two number 1.2m x 0.8m raised beds either end with a path in between, because of my mobility issues following my cancer treatment. 

Modified layout replacing the three beds to the right of the Square Foot Garden beds with a 2m x 4m polytunnel  

What became obvious when looking into the minimum width between pallet fenced paths was that a standard wheel barrow required tolerance between the pallets in order to navigate the path as the wheel barrow is 620mm which is wider than the 600mm path without any obstructions and that works. 

It hit me that my plan for raised beds with my current 600mm wide paths just was not going to work thus the two beds 15 & 16 will be turned by 90 degrees and placed end to end such that the paths can be increased in width to 800mm either side to allow travel around the raised beds with a wheel barrow.