Straight

Feeder: Wire the tracks here.

Curve

Separator: Isolated tracks

Regular Turnout

Curved turnout.

Catch: Turnout to make engines derail from one direction (as a safety precaution).

Rerailer: Puts the wheels back on track.

Y-Turnout

Circuit: (only for model railways) Generates a pulse when passed, generally direction sensitive.

Three-way Turnout

Buffer: End of the line.

Crossing

Uncoupler: uncouples rolling stock.

Double Slipswitch

Turntable

Single Slipswitch

Flex Track: Easily cut and bent as required.