MAX train and bus in Portland, OR. Photo (cc) TriMet.

→ The Atlantic Cities: Can Light Rail Carry a City’s Transit System?

We often think of light rail as a single component of a larger transit system, but if it’s done right it can just as soon serve as the foundation. Since 1981 a dozen American cities have built light rail lines atop bus-only systems. In five of them — Dallas, Portland, Sacramento, Salt Lake City, and San Diego — light rail now accounts for at least 30 percent of all transit ridership in the metropolitan area, even as it covers less than that much service space in the region.

Thompson and Brown settled on three key factors in the success of these systems. First, a great light rail system anchors a transit network that’s dispersed throughout a metro area. Second, it acts as an express regional alternative to the local bus network. And third, it promotes transfers between the bus and rail systems. The researchers believe these traits can serve as guides for future light rail planners “by setting forth attributes that these services need to possess in order to attract substantial ridership.”

→ Boston.com: Car-free commuting push pays off in Kendall Square

Doug Taylor used to get to work the way most Americans do, driving alone. Then he switched jobs to one of the many Kendall Square companies that offer financial incentives for employees to leave their cars at home. After trying the commuter rail, the 48-year-old Medford resident soon discovered he could pocket even more by biking.

Taylor is part of a set of statistics so surprising it looks like a mistake. ­Despite the rapid expansion in and around Kendall Square in the last ­decade — the neighborhood absorbed a 40 percent increase in commercial and institutional space, adding 4.6 million square feet of development — automobile traffic actually dropped on major streets, with vehicle counts falling as much as 14 percent.

Not for nothing but, modern day Kendall Square is a model City and State leaders are looking toward in regards to the (so-called) Knowledge District. Though leaders have not been looking enough at the transportation aspects of the area.