The 50% difference between the DPZ office space planning assumption and the reality of new office building usage as reflected in the Facebook headquarters and dozens of other leased or owned office buildings here and around the world will have a profound negative impact on development in Reston and other County TOD areas. A new 100,000 GSF office building will allow about 50,000 new jobs, not the 33,333 jobs DPZ would assume. That means 50% more traffic on local roads, 50% more workers using already under-allocated park space in and around TOD areas, 50% more environmental deterioration, and more.
Until Fairfax County starts being realistic about the office workspace of the future, all of its urbanizing areas will be at risk of being overwhelmed by unexpected and unplanned for workers.
The article itself provides a good look at both the pros and cons of the open-office workspace--and its seeming inevitability despite the complaints of employees. You can read the full article and see several more photos here.