Specifically the physical ramp used in ski jumping. Cross-referenced with シャンツェ (Schanze).
See also: シャンツェ
That ski resort has a large ski jump.
jump ramp; launch ramp; wedge ramp
Used in skateboarding, BMX, and similar action sports for a ramp that launches the rider into the air.
I practiced on the jump ramp at the skate park.
Compound of ジャンプ (jump) and 台 (platform, stand). A straightforward modern formation.