This week construction commenced on a new life sciences building located just a few blocks from my office. I spoke with the construction manager who told me it was to be an 11 story building with a 4 story subterranean garage. Scheduled duration for the project is two years. As much as I enjoyed watching the heavy equipment at work, all I could think about was the additional traffic this new facility will bring. City planners here seem inexplicably unconcerned with the traffic challenges that are going to hit like a tidal wave when all of the new office buildings going up in Cambridge and Somerville start operating.