Dead end tracks in Bristol, PA?

[25Hz]

40° 6'44.93"N
74°50'36.62"W

What was the function of this odd arrangement of tracks?

[westernfalls]

The railroad used to go through Bristol. The other end is also pretty obvious.
Check out some PRR history: http://www.prrths.com/National%20Page%2 ... fault.html