As a person who has a loft in Milwaukee, I can tell you about some serious problems with street vendors that may not enter your mind. While on the surface, street food vendors sound like a marvelous thing, when you can not sleep at bar time because the street sounds as loud as a football stadium, it is not so wonderful. Our street is filled with bars, but it is mixed use, meaning residences have existed there for over 150 years, well before the bars moved in. We have as many as four street food vendors set up on our single block of Third Street. There are no bathroom facilites once the bars close, and folks naturally congregate at the street vendor stands conveniently now set up, at bar time, right outside their doors. We begin every Saturday and Sunday morning picking up wrappers from their products, we often have to hose down catsup, mustard, giant grease spots, not to mention the street often smells like urine and puke. Without the street vendors, these drunk people would go home rather than hanging around to keep the party going. We got so angry at the bar next to our building we made a video for our alderman. (our issue was not with the food vendor, but it does play a role in the overall scenario)
http://www.youtube.com/watch?v=yuXwqIdydlA We filmed this on one of the quietest nights of the year, it was about 40 and raining. The noise in summer at bartime, is deafening. I have had several fights with the hot dog vendor, at one point he insisted on setting up on my own property, directly under my bedroom window. I have called the police on multiple occaisons, but waiting for the police at 2am in the morning is not particularly conducive to a good night of sleep.
I do think food vendors can be a really nice idea, but I sure hope that Chicago locks in some rules and regulations about cleanliness, noise and sanitation, an area in which Milwaukee has been sadly remiss. I have NEVER seen anyone from the health department inspect these night carts, I don't believe they work those hours. I see the same vendors out at lunch time set up around around the river, and everything about them creates a lovely picture of a multi-faceted warm, friendly and food focused city.