The parking rails 44 are arranged in a loop to achieve a maximum car storage capacity, {HEAD ~ the trajectory} naturally depending on {TAIL ~ the surfaces} available 
naturally depending on
The parking rails 44 are arranged in a loop to achieve a maximum car storage capacity , { HEAD ~ the trajectory } naturally depending on { TAIL ~ the surfaces } available
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH