3x3 COMPARISON CHART

	GEARS	Pulleys	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.
Cantilever	- Gears may work well. - To find a spot for the function may be complicated.	- The pulleys will work well with this bridge - The pulleys can be attached to the structure and worked by a motor on land.	Can be incorporated with the bridge. Will have small affect on the structure.
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.