Ashland is a major north/south "residential" road in Chicago. It is four lanes (two in each direction), but has stop lights probably every 3-5 blocks on average. Speed limit is posted at 30mph, I believe.
Given the time of morning the road was probably very clear so I'm thinking speed was a factor. I'll look tonight to see if there were any signs of braking/skidding, but it appeared he/she drove straight into the concrete planter which is in the median.