From: blockedofcourse@foo.invalid   
      
   On 12/4/2025 3:58 AM, Carlos E.R. wrote:   
   > On 2025-12-03 23:03, Don Y wrote:   
   >> I find this unnerving.  Mainly because you don't EXPECT people in   
   >> those places!   
   >>   
   >> How widespread is this, elsewhere?   
   >   
   > I had to google the expression, "lane filtering". Ok. But where does the   
   > expression come from?   
      
   "Lane splitting" refers to operating a motorcycle BETWEEN established   
   traffic lanes.  Effectively riding *on* the painted lines on the pavement   
   that separate said lanes.   
      
   This happens "at speed" -- the motorcyclist imagines an arbitrarily thin lane   
   between the "automobile lanes" and exploits it to move through traffic   
   more quickly.  Of course, still (?) obeying posted speed limits, etc.   
      
   Lane *filtering* addresses the same practice but in the case where the   
   traffic is stopped (like at a traffic signal) or barely crawling.   
      
   Here, motion is allowed if not exceeding 15MPH (whereas the speed limit on   
   most roads "in town" is 45MPH).  The thinking being that the motorcyclist   
   should be exercising caution as he moves through the stopped traffic.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)