Scott Hamwey’s job is figuring out the state’s transportation future. As the Massachusetts Department of Transportation’s manager of long-range planning, he is charged with trying to plot a course for the next 25 years.

In a Codcast talk with Josh Fairchild and James Aloisi of TransitMatters, Hamwey focuses on both the short and long term. The short-term is the MBTA service expansion nobody’s talking about — extending the Silver Line bus to East Boston and Chelsea, providing a one-seat ride for residents of those communities to the Seaport District. Adding a little spice to the ride, the SL3 will make use of bus rapid transit, or BRT, over a Chelsea railroad corridor so it will feel more like a subway ride.