There are two relatively easy ways to connect to FasTrack.
1) The 10" terminal section you have pictured accepts a 5.5mm OD x 2.5mm ID Barrel Connector. They're available with either screw terminals, solder connections or with pigtails already attached.
2) Most FasTrack (1-3/8", 10" and 30") straights and full curve pieces have spade terminals underneath them that accept 0.110" (aka 110) Faston connectors (wider up to 0.125" also works). They're available with wire crimp and/or solder connections, with and without insulation. The crimp version with insulation is available in 3 color coded wire gauge ranges. Red for 22-16 AWG, Blue for 16-14 AWG and Yellow for 12-10 AWG.