Originally Posted by
crhilton
Restricted highways, in the US, are clearly marked. They're largely limited to the US Interstate system. At every on-ramp will be a sign banning bicycles, farm equipment and all slow moving vehicles..
I know in Massachusetts the law states that bicyclists are allowed to ride on any road, except for the roads that have signage specifically restricting the activity.
The Mass DOT hasn't been that deligent about the upkeep of these signs, so many of them are missing from the local highways, which means that law isn't that easy to interpret. I still wouldn't ride on most of the highways around here though. Some cagers are nuts and there are too many Rhode Island drivers, who are annually ranked among the worst in the country.