research the food truck business

Project description
. As you already know Food Trucks are becoming so popular nowadays and it shows many examples from ethnic and regional cuisines.
While I was looking up on the internet I found: http://restaurants.about.com/od/Restaurant_Food_Trucks/
What I want you to do is to research the food truck business! While doing this make sure to cover:
New concepts / cuisines which are popular today or may be emerging in the next few years
Cost of the business
A description of the operation Eg: How many employees needed, purchasing, where the production takes place
Necessary permits / licenses to operate a food truck and how can you go and park the truck before you start your sales for that day.
Please continue making research in this area in addition to the website I have provided. Prepare a precise report on this topic in full 1page.