PETER ALEXIADIS

3x3 comparison chart

	GEARS	PULLYS	LIFT
Truss Bridge	This combination can be used, but there are not many ways to be creative with function-opening	This combination can work, but there is not a lot of freedom with the installation.	Can be incorporated with the bridge. Will have minimal influence on the structure.
Arch	Can easily be added to the middle of the bridge without affecting other cables and can hold mechanics easily in the trusses.	A pulley system would work best with an arch bridge because the vertical cables are ideal for lifting the desired portion of the deck	Can be incorporated with the bridge. road bed can lift above or below into the water
Cable- Stayed Bridge	This combination can be used with no complication with the construction	- Because the deck is held up with cables, finding a position for the function may be a problem.	Can be incorporated with the bridge. Will affect the structure.

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