To the editor: As Marblehead’s appointee to the MBTA Advisory Board, it would be inappropriate for me to address the substance of my neighbor John G. DiPiano’s argument against the 3A zoning bylaw in this venue. As a pedantic transportation historian, however, I must correct his memory regarding federal coercion and the 55-mile-per-hour speed limit. Fifty-five was a … [Read more...] about LTE: 3A zoning and the 55-mph speed limit