(public transport) The number of vehicles required to operate the highest-frequency service on a route.

plural of peak vehicle requirement

plural of peak flow meter

A peak in Mount Lawrence Grassi, Ehagay Nakoda, Canmore, Kananaskis, Alberta, Canada

plural of peak of eternal light

(space science) A mountain peak, on a solid, non-luminous celestial body, which experiences continuous or near-continuous illumination due to a combination of high altitude, very high latitude, and being on a celestial body with very low axial tilt.

(chiefly in combination) The condition of having a (specified form of) peak / (statistics) kurtosis (archaic).

plural of peakedness