If you've ever wondered what all of those firetrucks or police cars were doing the other day on the Naperville street where you live, you need wonder no longer starting Monday.
As part of an "open data" initiative enacted earlier this month by the Naperville City Council, residents will be able to learn when, where and why police officers or firefighters were sent out on emergency calls, courtesy of a daily "public safety incident map" making its formal debut Monday on the city's website.