[tylerfontaine]

So then a motorcycle could legally go 200mph? And loaded tractor/trailers could go 20MPH?

NB: I didn't do the math, so this is probably mildly hyperbolic, but I think it illustrates the point.

[jessaustin]

This proposal makes a lot of sense!

[cozzyd]

No, motorcycle could go 25 MPH. Loaded trailer 2.5 mph. Sounds about right to me for urban areas :)