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A crossover ladder is rarely the first thing tried. It is what gets specified once the cost of the other three responses has been noticed — so the comparison is the argument.
A ladder gets you up. A crossover gets you up, across, and down — and the middle part is the whole product.
The deck spans the obstruction at a height that clears it, which makes the obstruction's dimensions an input rather than an obstacle. Two flights and a deck, guarded throughout, so the crossing is a walking-working surface rather than a climb.
The same seven inputs JE takes on any access project, read for a crossing rather than a stand — the obstruction's dimensions decide the deck, and the traffic decides the width.
Six areas of scope, and every one stays tied to the approved application. JE can take all six or a single stage of them.
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