Sunrail – Central Florida Commuter Rail Transit Canopies. Structural engineering and drawings for station canopies and other structures for the 61 mile/17 station Commuter Rail System. The structures consisted of architectural exposed steel construction which required special steel detailing by McElroy Engineering. Phase1, which includes 14 of the 17 canopies, has approximately 67,000 SF total roof area and 530 tons of structural steel canopies.