Agree.  When river road was widened, at first they did not increase the speed limit, which remained at 30 mph.  I received the first speeding citation shortly thereafter, and I was traveling at about 35-40.  Then they raised the limit to 40 mph, but 45-50 is the new norm everywhere on River Road, where you will not find a police cruiser.  I hate impeders, but on River Road I feel a public duty use the left lane while going exactly 40 mph.  Because 30 mph was the correct speed limit!