Impact of Geometrics and Spacing

Hump Speed Changes Volume Changes Design (mph) ( vpd)

Initial 12' x 3-3/4" 39 -> 22 (midpoint) 795 -> 541 150' apart 14 (at humps) Redesign 12' x 3" 22 -> 27 (midpoint) 541 -> 746 340' apart 23 (at humps)

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