Columbia Association and the Horizon Foundation partnered to bring the eighth speaker in the Community Building Speakers Series Mark Fenton: a national expert in public health, transportation and planning. On Oct. 2, 2014, Mr. Fenton discussed how the physical design of communities can help promote healthy lifestyles, starting with the creation of “complete streets.” Complete streets are built to safely and comfortably accommodate all users, including pedestrians, cyclists, drivers, and those using transit.