07 : Research : Monorail

This website has a lot of detailed information about construction details for monorails and the different types of column/beam support options:

http://www.urbanaut.com/Guildway%20and%20Construction%204.htm

Monorail Definition: A single rail serving as a track for passenger or freight vehicles. In most cases rail is elevated, but monorails can also run at grade, below grade or in subway tunnels. Vehicles are either suspended from or straddle a narrow guideway. Monorail vehicles are WIDER than the guideway that supports them.

Waterfront East station featured a double track station with an island platform

Hanging Monorail, Germany. Wuppertal's monorail first opened in 1901, and for most of its 11km route is located above the river Wüpper, however at the western end it runs above a main road where by not requiring any roadspace it very effectively avoids traffic congestion. Admittedly the system is not the prettiest to look at and is a little noisy but the superstructure is from a different era when people just marvelled at the technology.

Source: http://citytransport.info/Monorail.htm