Slow drivers create more accidents on high speed roads than fast drivers.

[Grumpier Than Uncle Joe]

Slow drivers cause others to be more aggressive in order to get around them or out of the way, so, I agree.

[Grumpier Than Uncle Joe]

I've seen the stop signs, but I'm not sure where.  I remember the onramps for the PA Turnpike were AMAZINGLY short and that may have been where I saw them.

The only time there are stop signs on the ramps of the PA Turnpike are when there is construction, but the ramps are AMAZINGLY short.....the exits they are rebuilding though are getting much longer ramps, basically you're own lane for a long stretch before you need to yield.  They're clearly not done with that yet.