Staff & Board
Mark is the founder of Tower Research Capital LLC, a money management firm specializing in quantitative trading and investment strategies, as well as the founder of Lime Brokerage LLC, Lime Medical LLC and Lime Labs LLC. Mark founded OpenPlans (Streetsblog’s parent non-profit) in 1999 after realizing the incredible potential of the open source movement to create tools that catalyze civic engagement. In his role as Chairman he draws on a strong background in urban transportation advocacy and open media.
Ben Fried is the Editor-in-Chief of Streetsblog. He joined Streetsblog as a New York City reporter in 2008, just as the push to enact congestion pricing was peaking. Since then he has covered slightly more successful transit funding campaigns, the transportation angle on local elections, and the day-by-day transformation of New York City streets. Today he oversees Streetsblog’s family of sites covering New York, San Francisco, federal transportation policy, and stories from around the country of significance to the national movement for safer streets and sustainable transportation. Ben graduated from Oberlin College with a concentration in architecture, and he holds a Master’s in Journalism from Columbia University. He lives with his wife in Ditmas Park, Brooklyn, and he loves the Mets. Follow Ben on Twitter @streetsblogNYC.
Before joining the Streetsblog team, John Greenfield and Steven Vance wrote the transportation news website GridChicago.com. John previously worked for the Active Transportation Alliance as a consultant to the Chicago Department of Transportation, managing the installation of roughly 3,500 bike parking racks. He has a B.A. in English from the University of Chicago. John also writes the transportation column “Checkerboard City” in Newcity magazine. He lives a short walk from the Wilson Red Line stop in Chicago’s Uptown neighborhood. Follow John on Twitter @streetsblogCHI.
Prior to joining the Streetsblog family, Steven co-wrote GridChicago.com with John Greenfield. Steven graduated with a masters in transportation planning from the University of Illinois at Chicago in 2010. He worked for the Chicago Department of Transportation and Active Transportation Alliance as a bicycle parking planner. Steven organizes the Cargo Bike Roll Call organization to promote family and utility cycling in Chicago. Follow Steven on Twitter @streetsblogCHI.