• Installing new traffic lights on Clark Street at Waveland Avenue, School Street and Roscoe Avenue • Adding a new interconnected traffic light system on Clark between Belmont Avenue and Irving Park Road, essentially improving the way all those lights work together • Encouraging the team to better communicate non-driving options and parking availability to fans There also were some targeted recommendations, such as: • Restricting all parking after events on Clark Street between Irving Park Road and Grace Street • Putting Chicago Transit Authority fare card machines on sidewalks immediately outside Wrigley Field • Disallowing street peddlers and performers from setting up on public rights of way before and after games • Having the team promote bicycle ridership through events and prices, such as a "Divvy Bikeshare Night"
Many of these are excellent ideas and will help encourage people to get to Wrigley Field via non-car options. I find the "disallowing street peddlers" point to be most interesting; that provides income for quite a number of people (T-shirt vendors and the like), but might be most aimed at prohibiting "Billy Cub" from doing his act around the ballpark.
Ecker also cites some facts from the study itself; this was one I found most interesting:
The majority of people driving to Cubs games come from the north and northwest suburbs. The ZIP codes in Chicago with the highest percentage of season-ticket holders are all close to the ballpark: 60657, 60613, 60614, 60618, 60611 and 60610. Outside city limits, the ZIP codes with the most season-ticket holders are: Northbrook (60062), Deerfield (60015), Winnetka (60093), Evanston (60201) and Park Ridge (60068).
You can read the entire study here (Scribd document).