>Also, everything except expressways have a speed limit of 60, so you can use it no problem. Not sure where in Japan you've been driving, but my experience is

>Also, everything except expressways have a speed limit of 60, so you can use it no problem. Not sure where in Japan you've been driving, but my experience is that sticking to the posted speed limit on most roads makes you a hazard to navigation - particularly outside of cities.