[Imports] massdot data

[Richard Weait]

On Mon, Aug 22, 2011 at 3:14 PM, Metcalf, Calvin (DOT)
<calvin.metcalf at state.ma.us> wrote:
> two things,
> First, I'm updating the toll plazas and noticed that the previous uploader
> had added 1 barrier=toll_booth per lane,

I've previously modeled toll plazas as a single barrier.  We model a
single carriageway as one line, regardless of lanes.  Exceptions to
that guideline might occur, but they are rare and I usually consider
them over-mapping.